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WSDL 2.0 is the Web Services Description Language, an XML language for describing Web services. This document, "Web Services Description Language (WSDL) Version 2.0 Part 2: Adjuncts", specifies predefined extensions for use in WSDL 2.0:
Message exchange patterns
Operation safety
Operation styles
Binding extensions for SOAP and HTTP
This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.
This is the W3C Recommendation of Web Services Description Language (WSDL) Version 2.0 Part 2: Adjuncts for review by W3C Members and other interested parties. It has been produced by the Web Services Description Working Group, which is part of the W3C Web Services Activity.
W3C Advisory Committee Representatives should consult their WBS questionnaires. Reviews are expected until 20 June 2007.Individuals are invited to send feedback on this document to the public Please send comments about this document to the public public-ws-desc-comments@w3.org mailing list (public archive).
The Working Group released a test suite along with an implementation report.Issues about this document are recorded in the issues list maintained by the Working Group. A . A diff-marked version against the previous version of this document is available.
This document has been reviewed by W3C Members, by software developers, and by other W3C groups and interested parties, and is endorsed by the Director as a W3C Recommendation. It is a stable document and may be used as reference material or cited from another document. W3C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability of the Web.
This document is governed by the 24 January 2002 CPP as amended by the W3C Patent Policy Transition Procedure. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.
1. Introduction
1.1 Notational
Conventions
1.2 Assertions
2. Predefined Message Exchange Patterns
2.1 Template for
Message Exchange Patterns
2.1.1 Pattern Name
2.2 Fault
Propagation Rules
2.2.1 Fault Replaces Message propagation rule
2.2.2 Message Triggers Fault propagation rule
2.2.3 No Faults propagation rule
2.3 Message Exchange
Patterns
2.3.1 In-Only message exchange pattern
2.3.2 Robust In-Only message exchange pattern
2.3.3 In-Out message exchange pattern
2.4 Security
Considerations
3. Predefined Extensions
3.1 Operation safety
3.1.1 Relationship to WSDL Component Model
3.1.2 XML Representation
3.1.3 Mapping from XML Representation to Component
Properties
4. Predefined Operation Styles
4.1 RPC Style
4.1.1 wrpc:signature
Extension
4.1.2 XML Representation of
the wrpc:signature Extension
4.1.3 wrpc:signature
Extension Mapping To Properties of an Interface Operation
component
4.2 IRI
Style
4.3 Multipart style
5. WSDL SOAP Binding Extension
5.1 SOAP Syntax
Summary (Non-Normative)
5.2 Identifying the use of the SOAP Binding
5.3 SOAP Binding
Rules
5.4 Specifying the
SOAP Version
5.4.1 Description
5.4.2 Relationship to WSDL Component Model
5.4.3 XML Representation
5.4.4 Mapping from XML Representation to
Component properties
5.5 Specifying the
SOAP Underlying Protocol
5.5.1 Description
5.5.2 Relationship to WSDL Component Model
5.5.3 XML Representation
5.5.4 Mapping from XML Representation to
Component Properties
5.6 Binding
Faults
5.6.1 Description
5.6.2 Relationship to WSDL Component Model
5.6.3 XML Representation
5.6.4 Mapping XML Representation to Component
Properties
5.7 Binding
Operations
5.7.1 Description
5.7.2 Relationship to WSDL Component
Model
5.7.3 XML Representation
5.7.4 Mapping from XML Representation to
Component Properties
5.8 Declaring
SOAP Modules
5.8.1 Description
5.8.2 Relationship to WSDL Component Model
5.8.3 SOAP Module component
5.8.4 XML Representation
5.8.5 Mapping from XML Representation to
Component Properties
5.8.6 IRI Identification Of A SOAP Module
component
5.9 Declaring
SOAP Header Blocks
5.9.1 Description
5.9.2 Relationship to WSDL Component
Model
5.9.3 SOAP Header Block component
5.9.4 XML Representation
5.9.5 Mapping XML Representation to
Component Properties
5.9.6 IRI Identification Of A SOAP Header
Block component
5.10 WSDL SOAP
1.2 Binding
5.10.1 Identifying a WSDL SOAP 1.2 Binding
5.10.2 Description
5.10.3 SOAP 1.2 Binding Rules
5.10.4 Binding WSDL 2.0 MEPs to SOAP 1.2 MEPs
5.10.4.1
WSDL In-Out to SOAP Request-Response
5.10.4.1.1
The Client
5.10.4.1.2
The Service
5.10.4.2
WSDL In-Out to SOAP SOAP-Response
5.10.4.2.1
The Client
5.10.4.2.2
The Service
5.10.4.3
WSDL In-Only to SOAP
Request-Response
5.10.4.3.1
The Client
5.10.4.3.2
The Service
5.10.4.4
WSDL Robust-In-Only to SOAP
Request-Response
5.10.4.4.1
The Client
5.10.4.4.2
The Service
5.11 Conformance
6. WSDL HTTP Binding Extension
6.1 Identifying
the use of the HTTP Binding
6.2 HTTP Syntax
Summary (Non-Normative)
6.3 Supported Extensions
6.4 HTTP Binding Rules
6.4.1 HTTP Method Selection
6.4.2 HTTP Content Encoding
Selection
6.4.3 Payload Construction And
Serialization Format
6.4.3.1
Serialization rules for XML messages
6.4.4 Default input and output
serialization format
6.4.5 HTTP Header Construction
6.4.6 HTTP Request IRI
6.5 Binding
Operations
6.5.1 Description
6.5.2 Relationship to WSDL Component
Model
6.5.3 Specification of serialization rules allowed
6.5.4 XML Representation
6.5.5 Mapping from XML Representation to
Component Properties
6.6 Declaring
HTTP Headers
6.6.1 Description
6.6.2 Relationship to WSDL Component
Model
6.6.3 HTTP Header component
6.6.4 XML Representation
6.6.5 Mapping from XML Representation to
Component Properties
6.6.6 IRI Identification Of An HTTP Header
component
6.7 Specifying
HTTP Error Code for Faults
6.7.1 Description
6.7.2 Relationship to WSDL Component Model
6.7.3 XML Representation
6.7.4 Mapping from XML Representation to
Component Properties
6.8 Serialization Format of Instance Data
6.8.1 Serialization of the instance data in
parts of the HTTP request IRI
6.8.1.1
Construction of the
request IRI using the {http location} property
6.8.2 Serialization as
application/x-www-form-urlencoded
6.8.2.1
Case of elements
cited in the {http location} property
6.8.2.2
Serialization of
content of the instance data not cited in the {http location}
property
6.8.2.2.1
Construction of
the query string
6.8.2.2.2
Controlling the serialization of
the query string in the request IRI
6.8.2.2.3
Serialization in
the request IRI
6.8.2.2.4
Serialization in
the message body
6.8.3 Serialization as
application/xml
6.8.4 Serialization as
multipart/form-data
6.9 Specifying the Content Encoding
6.9.1 Description
6.9.2 Relationship to WSDL Component
Model
6.9.3 XML Representation
6.9.4 Mapping from XML
Representation to Component Properties
6.10 Specifying the Use of HTTP Cookies
6.10.1 Description
6.10.2 Relationship to WSDL Component Model
6.10.3 XML Representation
6.10.4 Mapping from XML Representation to
Component Properties
6.11 Specifying
HTTP Access Authentication
6.11.1 Description
6.11.2 Relationship to WSDL Component Model
6.11.3 XML Representation
6.11.4 Mapping from XML Representation to
Component Properties
6.12 Conformance
7. References
7.1 Normative References
7.2 Informative References
A. Acknowledgements
(Non-Normative)
B. Component Summary
(Non-Normative)
C. Assertion Summary
(Non-Normative)
The Web Services Description Language Version 2.0 (WSDL 2.0) [WSDL 2.0 Core Language] provides a model and an XML format for describing Web services. WSDL 2.0 enables one to separate the description of the abstract functionality offered by a service from concrete details of a service description such as "how" and "where" that functionality is offered.
This document, "Web Services Description Language (WSDL) Version 2.0 Part 2: Adjuncts", specifies predefined extensions for use in WSDL 2.0:
Message exchange patterns: 2. Predefined Message Exchange Patterns
Operation safety declaration: 3. Predefined Extensions
Operation styles: 4. Predefined Operation Styles
Binding extensions:
A SOAP 1.2 [SOAP 1.2 Part 1: Messaging Framework (Second Edition)] binding extension: 5. WSDL SOAP Binding Extension
An HTTP/1.1 [IETF RFC 2616] binding extension: 6. WSDL HTTP Binding Extension
This document depends on "Web Services Description Language (WSDL) Version 2.0 Part 1: Core Language" [WSDL 2.0 Core Language]. See also the "Web Services Description Language (WSDL) Version 2.0 Part 0: Primer" [WSDL 2.0 Primer] for more information and examples.
The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC2119 [IETF RFC 2119].
This specification uses a number of namespace prefixes throughout; they are listed in Table 1-1. Note that the choice of any namespace prefix is arbitrary and not semantically significant (see [XML Information Set]).
Prefix | Namespace | Notes |
---|---|---|
wsdl | "http://www.w3.org/ns/wsdl" | This namespace is defined in [WSDL 2.0 Core Language]. A normative XML Schema [XML Schema Structures], [XML Schema Datatypes] document for the "http://www.w3.org/ns/wsdl" namespace can be found at http://www.w3.org/ns/wsdl. This namespace is used as the default namespace throughout this specification. |
wsdlx | "http://www.w3.org/ns/wsdl-extensions" | This specification extends in section 3. Predefined Extensions the "http://www.w3.org/ns/wsdl-extensions" namespace defined in [WSDL 2.0 Core Language]. A normative XML Schema [XML Schema Structures], [XML Schema Datatypes] document for the "http://www.w3.org/ns/wsdl-extensions" namespace can be found at http://www.w3.org/ns/wsdl-extensions. |
wsoap | "http://www.w3.org/ns/wsdl/soap" | Defined by this specification. A normative XML Schema [XML Schema Structures], [XML Schema Datatypes] document for the "http://www.w3.org/ns/wsdl/soap" namespace can be found at http://www.w3.org/ns/wsdl/soap. |
whttp | "http://www.w3.org/ns/wsdl/http" | Defined by this specification. A normative XML Schema [XML Schema Structures], [XML Schema Datatypes] document for the "http://www.w3.org/ns/wsdl/http" namespace can be found at http://www.w3.org/ns/wsdl/http. |
wrpc | "http://www.w3.org/ns/wsdl/rpc" | Defined by this specification. A normative XML Schema [XML Schema Structures], [XML Schema Datatypes] document for the "http://www.w3.org/ns/wsdl/rpc" namespace can be found at http://www.w3.org/ns/wsdl/rpc. |
xs | "http://www.w3.org/2001/XMLSchema" | Defined in the W3C XML Schema specification [XML Schema Structures], [XML Schema Datatypes]. |
Namespace names of the general form "http://example.org/..." and "http://example.com/..." represent application or context-dependent URIs [IETF RFC 3986].
All parts of this specification are normative, with the EXCEPTION of pseudo-schemas, examples, and sections explicitly marked as "Non-Normative". Pseudo-schemas are provided for each component, before the description of this component. They provide visual help for the XML [XML 1.0] serialization. The syntax of BNF pseudo-schemas is the same as the one used in [WSDL 2.0 Core Language].
Assertions about WSDL 2.0 documents and components that are not enforced by the normative XML schema for WSDL 2.0 are marked by a dagger symbol (†) at the end of a sentence. Each assertion has been assigned a unique identifier that consists of a descriptive textual prefix and a unique numeric suffix. The numeric suffixes are assigned sequentially and never reused so there may be gaps in the sequence. The assertion identifiers MAY be used by implementations of this specification for any purpose, e.g. error reporting.
The assertions and their identifiers are summarized in section C. Assertion Summary.
Web Services Description Language (WSDL) message exchange patterns (hereafter simply 'patterns') define the sequence and cardinality of abstract messages listed in an operation. Message exchange patterns also define which other nodes send messages to, and receive messages from, the service implementing the operation.
A node is an agent (section 2.3.2.2 Agent of the Web Services Architecture [Web Services Architecture]) that can transmit and/or receive message(s) described in WSDL description(s) and process them.
Note:
A node MAY be accessible via more than one physical address or transport.†
WSDL message exchange patterns describe the interaction at the abstract (interface) level, which may be distinct from the pattern used by the underlying protocol binding (e.g. SOAP Message Exchange Patterns; section 5.10.3 SOAP 1.2 Binding Rules contains the binding rules for the selection of a SOAP 1.2 message exchange pattern, based on the WSDL message exchange pattern in use for the SOAP binding extension defined in section 5. WSDL SOAP Binding Extension).
By design, WSDL message exchange patterns abstract out specific message types. Patterns identify placeholders for messages, and placeholders are associated with specific message types by the operation using the pattern.
Unless explicitly stated otherwise, WSDL message exchange patterns also abstract out binding-specific information such as timing between messages, whether the pattern is synchronous or asynchronous, and whether the messages are sent over a single or multiple channels.
Like interfaces and operations, WSDL message exchange patterns do not exhaustively describe the set of messages exchanged between a service and other nodes; by some prior agreement, another node and/or the service MAY send messages (to each other or to other nodes) that are not described by the pattern.† For instance, even though a pattern can define a single message sent from a service to one other node, the Web service can in practice multicast that message to other nodes.
To maximize reuse, WSDL message exchange patterns identify a minimal contract between other parties and Web services, and contain only information that is relevant to both the Web service and another party.
This specification defines several message exchange patterns for use with WSDL Version 2.0 Part 1: Core Language [WSDL 2.0 Core Language]. Additional, non-normative patterns are available in [WSDL 2.0 Additional MEPs].
New message exchange patterns may be defined by any organization able and willing to do so. It is recommended that the patterns use the general template provided in 2.1.1 Pattern Name, after examination of existing predefined patterns.
This pattern consists of [number] message[s, in order] as follows:
[enumeration, specifying, for each message] A[n optional] message:
indicated by an Interface Message Reference component whose {message label} is "[label]" and {direction} is "[direction]"
[received from|sent to] ['some' if first mention] node [node identifier]
This pattern uses the rule [fault ruleset reference].
An Interface Operation using this message exchange pattern has a {message exchange pattern} property with the value "[pattern IRI]".
Note: In the template, the bracketed items indicate a replacement operation. Substitute the correct terms for each bracketed item.
Note: the "received from" and "sent to" are always from the point of view of the service, and participating nodes other than the service are implicitly identified as the originators of or destinations for messages in the exchange.
WSDL patterns specify their fault propagation model using standard rulesets to indicate where faults can occur. The most common patterns for fault propagation are defined in the following subsections, and referenced by the patterns in 2.3 Message Exchange Patterns. "Propagation" is defined as a best-effort attempt to transmit the fault message to its designated recipient.
WSDL patterns specify propagation of faults, not their generation. Nodes that generate faults MUST attempt to propagate the faults in accordance with the governing ruleset, but it is understood that any delivery of a network message is best effort, not guaranteed.† The rulesets establish the direction of the fault message and the fault recipient; they do not provide reliability or other delivery guarantees. When a fault is generated, the generating node MUST attempt to propagate the fault, and MUST do so in the direction and to the recipient specified by the ruleset.† However, extensions or binding extensions MAY modify these rulesets.† For example, WS-Addressing [WSA 1.0 Core] defines a "FaultTo" address for messages, which is used in lieu of the recipient nominated by the ruleset.
Generation of a fault, regardless of ruleset, terminates the exchange.†
Binding extensions, features, or extension specifications can override the semantics of a fault propagation ruleset, but this practice is strongly discouraged.
When the Fault Replaces Message propagation rule is in effect, any message after the first in the pattern MAY be replaced with a fault message, which MUST have identical direction. † The fault message MUST be delivered to the same target node as the message it replaces, unless otherwise specified by an extension or binding extension. If there is no path to this node, the fault MUST be discarded.†
The Fault Replaces Message propagation rule is identified by the
following URI:
http://www.w3.org/ns/wsdl/fault-replaces-message
When the Message Triggers Fault propagation rule is in effect, any message, including the first in the pattern, MAY trigger a fault message, which MUST have opposite direction. † The fault message MUST be delivered to the originator of the triggering message, unless otherwise specified by an extension or binding extension. Any node MAY propagate a fault message, and MUST NOT do so more than once for each triggering message. If there is no path to the originator, the fault MUST be discarded.†
The Message Triggers Fault propagation rule is identified by the
following URI:
http://www.w3.org/ns/wsdl/message-triggers-fault
When the No Faults propagation rule is in effect, faults MUST NOT be propagated. †
The No Faults propagation rule is identified by the following
URI: http://www.w3.org/ns/wsdl/no-faults
WSDL patterns are described in terms of the WSDL component model, specifically the Interface Message Reference and Interface Fault Reference components.
The
in-only
message exchange pattern consists of exactly
one message as follows:†
A message:
indicated by a Interface Message Reference component whose {message label} is "In" and {direction} is "in"
received from some node N
The
in-only
message exchange pattern uses the rule
2.2.3 No Faults propagation
rule.†
An operation using this message exchange pattern has a {message exchange pattern} property with the value "http://www.w3.org/ns/wsdl/in-only".
The robust-in-only
message
exchange pattern consists of exactly one message as
follows:†
A message:
indicated by a Interface Message Reference component whose {message label} is "In" and {direction} is "in"
received from some node N
The
robust in-only
message exchange pattern uses the rule
2.2.2 Message Triggers Fault
propagation rule.†
An operation using this message exchange pattern has a {message exchange pattern} property with the value "http://www.w3.org/ns/wsdl/robust-in-only".
The
in-out
message exchange pattern consists of exactly
two messages, in order, as follows:†
A message:
indicated by a Interface Message Reference component whose {message label} is "In" and {direction} is "in"
received from some node N
A message:
indicated by a Interface Message Reference component whose {message label} is "Out" and {direction} is "out"
sent to node N
The
in-out
message exchange pattern uses the rule 2.2.1 Fault Replaces Message
propagation rule.†
An operation using this message exchange pattern has a {message exchange pattern} property with the value "http://www.w3.org/ns/wsdl/in-out".
Note that many of the message exchange patterns defined above describe responses to an initial message (either a normal response message or a fault.)
Such responses can be used in attempts to disrupt, attack, or map a network, host, or services. When such responses are directed to an address other than that originating the initial message, the source of an attack can be obscured, or blame laid on a third party, or denial-of-service attacks can be enabled or exacerbated.
Security mechanisms addressing such attacks can prevent the delivery of response messages to the receiving node. Conformance to the message exchange pattern is measured prior to the application of these security mechanisms.
This section defines an extension to WSDL 2.0 [WSDL 2.0 Core Language] that allows marking an operation as a safe interaction, as defined in section 3.4. Safe Interactions of [Web Architecture].
This extension MAY be used for setting defaults in bindings, such as in the HTTP binding (see 6.5.5 Mapping from XML Representation to Component Properties).
The safety extension adds the following property to the Interface Operation component model (defined in [WSDL 2.0 Core Language]):
{safe} REQUIRED. An xs:boolean indicating whether the operation is asserted to be safe for users to invoke. If this property is "false", then no assertion has been made about the safety of the operation, thus the operation MAY or MAY NOT be safe. However, an operation SHOULD be marked safe if it meets the criteria for a safe interaction defined in Section 3.4 of [Web Architecture].†
<description> <interface> <operation name="xs:NCName" pattern="xs:anyURI" wsdlx:safe="xs:boolean"? > </operation> </interface> </description>
The XML representation for the safety extension is an attribute information item with the following Infoset properties:
An
OPTIONAL safe
attribute information item with
the following Infoset properties:†
A [local name] of safe
A [namespace name] of "http://www.w3.org/ns/wsdl-extensions"
A type of xs:boolean
This section defines operation styles that can be used to place constraints on Interface Operation components, in particular with respect to the format of the messages they refer to. The serialization formats defined in section 6.8 Serialization Format of Instance Data require bound Interface Operation components to have one or more of the styles defined in this section.
The RPC style is selected by including the value "http://www.w3.org/ns/wsdl/style/rpc" in the {style} property of an Interface Operation component.
An
Interface Operation component conforming to the RPC style MUST
obey the constraints listed further below. Also, if the
wrpc:signature
extension is
engaged simultaneously, the corresponding attribute
information item MUST be valid according to the schema for the
extension and additionally MUST obey the constraints listed in
4.1.1
wrpc:signature Extension and 4.1.2 XML
Representation of the wrpc:signature Extension.
Furthermore, the associated messages MUST conform to the rules below, described using XML Schema [XML Schema Structures]. Note that operations containing messages described by other type systems may also indicate use of the RPC style, as long as they are constructed in such a way as to follow these rules.
If the RPC style is used by an Interface Operation component then its {message exchange pattern} property MUST have the value either "http://www.w3.org/ns/wsdl/in-only" or "http://www.w3.org/ns/wsdl/in-out".†
If the Interface Operation component uses a {message exchange pattern} for which there is no output element, i.e. "http://www.w3.org/ns/wsdl/in-only", then the conditions stated below that refer to output elements MUST be considered to be implicitly satisfied.
The value of the {message content model} property for the Interface Message Reference components of the {interface message references} property MUST be "#element".†
The content model of input and output {element declaration} elements MUST be defined using a complex type that contains a sequence from XML Schema.†
The input
sequence MUST only contain elements and element
wildcards.† It
MUST NOT contain other structures such as xs:choice
.
The input
sequence MUST NOT contain more than one element
wildcard.†
The element
wildcard, if present, MUST appear after any elements.†
The output
sequence MUST only contain elements.† It
MUST NOT contain other structures such as
xs:choice
.
Both the
input and output sequences MUST contain only local element
children.† Note
that these child elements MAY contain the following attributes:
nillable
, minOccurs
and
maxOccurs
.
The local name of input element's QName MUST be the same as the Interface Operation component's name.†
Input and output elements MUST both be in the same namespace.†
The complex type that defines the body of an input or an output element MUST NOT contain any local attributes.† Extension attributes are allowed for purposes of managing the message infrastructure (e.g. adding identifiers to facilitate digitally signing the contents of the message). They must not be considered as part of the application data that is conveyed by the message. Therefore, they are never included in an RPC signature (see 4.1.1 wrpc:signature Extension).
If elements with the same qualified name appear as children of both the input and output elements, then they MUST both be declared using the same named type.†
The input or output sequence MUST NOT contain multiple children elements declared with the same name.†
wrpc:signature
ExtensionThe wrpc:signature
extension attribute
information item MAY be used in conjunction with the RPC style
to describe the exact signature of the function represented by an
operation that uses the RPC style.
When present, the wrpc:signature
extension
contributes the following property to the
Interface Operation component it is applied to:
{rpc signature} OPTIONAL, but MUST be present when the style is RPC†. A list of pairs (q, t) whose first component is of type xs:QName and whose second component is of type xs:token. Values for the second component MUST be chosen among the following four: "#in", "#out", "#inout" "#return".†
The value of the {rpc signature} property MUST satisfy the following conditions:
The value of the first component of each pair (q, t) MUST be unique within the list.†
For each child element of the input and output messages of the operation, a pair (q, t), whose first component q is equal to the qualified name of that element, MUST be present in the list, with the caveat that elements that appear with cardinality greater than one MUST be treated as a single element.†
For each pair (q, #in), there MUST be a child element of the input element with a name of q. There MUST NOT be a child element of the output element with the name of q.†
For each pair (q, #out), there MUST be a child element of the output element with a name of q. There MUST NOT be a child element of the input element with the name of q.†
For each pair (q, #inout), there MUST be a child element of the input element with a name of q. There MUST also be a child element of the output element with the name of q.†
For each pair (q, #return), there MUST be a child element of the output element with a name of q. There MUST NOT be a child element of the input element with the name of q.†
The function signature defined by a wrpc:signature
extension is determined as follows:
Start with the value of the {rpc signature} property, a (possibly empty) list of pairs of this form:
[(q0, t0), (q1, t1), ...]
Filter the elements of this list into two lists, the first one (L1) comprising pairs whose t component is one of {#in, #out, #inout}, the second (L2) pairs whose t component is #return. During the composition of L1 and L2, the relative order of members in the original list MUST be preserved.
For ease of visualization, let's denote the two lists as:
(L1) [(a0, u0), (a1, u1), ...]
and
(L2) [(r0, #return), (r1, #return), ...]
respectively.
Then, if the input sequence ends with an element wildcard, the formal signature of the function is:
f([d0] a0, [d1] a1, ..., rest) => (r0, r1, ...)
where rest is a formal parameter representing the elements in the input message matched by the element wildcard.
Otherwise the formal signature of the function is:
f([d0] a0, [d1] a1, ...) => (r0, r1, ...)
i.e.:
the list of formal arguments to the function is [a0, a1, ...];
the direction d of each formal argument a is one of [in], [out], [inout], determined according to the value of its corresponding u token;
the list of formal return parameters of the function is [r0, r1, ...];
each formal argument and formal return parameter is typed according to the type of the child element identified by it (unique per the conditions given above).
Note:
The wrpc:signature
extension allows the
specification of multiple return values for an operation. Several
popular programming languages support multiple return values for a
function. Moreover, for languages which do not, the burden on
implementers should be small, as typically multiple return values
will be mapped to a single return value of a structure type (or its
closest language-specific equivalent).
wrpc:signature
ExtensionThe XML representation for the RPC signature extension is an attribute information item with the following Infoset properties:
A [local name] of signature
A [namespace name] of "http://www.w3.org/ns/wsdl/rpc"
The type of the signature
attribute information
item is a list type whose item type is the union of the
xs:QName type and the subtype of the xs:token
type restricted to the following four values: "#in", "#out",
"#inout", "#return". See Example
4-1 for an excerpt from the normative schema definition of this
type.
Additionally, each even-numbered item (0, 2, 4, ...) in the list MUST be of type xs:QName and each odd-numbered item (1, 3, 5, ...) in the list MUST be of the subtype of xs:token described in the previous paragraph.†
Example 4-1. Definition of the wrpc:signature extension
<xs:attribute name="signature" type="wrpc:signatureType"/> <xs:simpleType name="signatureType"> <xs:list itemType="wrpc:signatureItemType"/> </xs:simpleType> <xs:simpleType name="signatureItemType"> <xs:union memberTypes="xs:QName wrpc:directionToken"/> </xs:simpleType> <xs:simpleType name="directionToken"> <xs:restriction base="xs:token"> <xs:enumeration value="#in"/> <xs:enumeration value="#out"/> <xs:enumeration value="#inout"/> <xs:enumeration value="#return"/> </xs:restriction> </xs:simpleType>
wrpc:signature
Extension Mapping To Properties of an
Interface Operation componentA wrpc:signature
extension attribute
information item is mapped to the following property of the
Interface Operation component defined by its [owner].
Property | Value |
---|---|
{rpc signature} | A list of (xs:QName, xs:token)
pairs formed by grouping the items present in the actual value of
the wrpc:signature attribute information item
in the order in which they appear there. |
The IRI style is selected by including the value "http://www.w3.org/ns/wsdl/style/iri" in the {style} property of an Interface Operation component.
When using this style, the value of the {message content model} property of the Interface Message Reference component corresponding to the initial message of the message exchange pattern MUST be "#element".†
Use of this value indicates that XML Schema [XML Schema Structures] was used to define the schema of the {element declaration} property of the Interface Message Reference component of the Interface Operation component corresponding to the initial message of the message exchange pattern. This schema MUST adhere to the rules below:
The content model of this element is defined using a complex type that contains a sequence from XML Schema.
The sequence
MUST only contain elements.†
It MUST NOT contain other structures such as
xs:choice
. There are no
occurrence constraints on the sequence.
The sequence
MUST contain only local element children.† Note
these child elements can contain the nillable
attribute.
The localPart of the element's QName MUST be the same as the Interface Operation component's {name}.†
The complex type that defines the body of the element or its children elements MUST NOT contain any attributes.†
The children
elements of the sequence MUST derive from
xs:simpleType
, and MUST NOT be of the type or derive
from xs:QName
, xs:NOTATION
,
xs:hexBinary
or
xs:base64Binary
.†
The Multipart style is selected by including the value "http://www.w3.org/ns/wsdl/style/multipart" in the {style} property of an Interface Operation component.
When using this style, the value of the {message content model} property of the Interface Message Reference component corresponding to the initial message of the message exchange pattern MUST be "#element".†
Use of this value indicates that XML Schema [XML Schema Structures] was used to define the schema of the {element declaration} property of the Interface Message Reference component of the Interface Operation component corresponding to the initial message of the message exchange pattern. This schema MUST adhere to the rules below:
The content model of this element is defined using a complex type that contains a sequence from XML Schema.
The
sequence MUST only contain elements.†
It MUST NOT contain other structures such as
xs:choice
.
The
sequence MUST contain only local element children.†
The
attributes minOccurs
and maxOccurs
for
these child elements MUST have a value 1
.†
Note these child elements can contain the nillable
attribute.
The localPart of the element's QName MUST be the same as the Interface Operation component's {name}.†
The complex type that defines the body of the element or its children elements MUST NOT contain any attributes.†
The sequence MUST NOT contain multiple children element declared with the same local name.†
The SOAP binding extension described in this section is an extension for [WSDL 2.0 Core Language] to enable Web services applications to use SOAP. This binding extension is SOAP version independent ("1.2" as well as other versions) and extends WSDL 2.0 by adding properties to the Binding component, and its related components, as defined in [WSDL 2.0 Core Language]. In addition, an XML Infoset representation for these additional properties is provided, along with a mapping from that representation to the various component properties.
As allowed in [WSDL 2.0 Core Language], a Binding component can exist without indicating a specific Interface component that it applies to. In this case, no Binding Operation or Binding Fault component can be present in the Binding component.
The SOAP binding extension is designed with the objective of minimizing what needs to be explicitly declared for common cases. This is achieved by defining a set of default rules that affect all Interface Operation components of an Interface component to which the SOAP binding extension is applied, unless specifically overridden by a Binding Operation component. Thus, if a given Interface Operation component is not referred to specifically by a Binding Operation component, then all the default rules apply to that Interface Operation component. As a result, in accordance with the requirements of [WSDL 2.0 Core Language], all operations of an Interface component will be bound by this binding extension.
Note: As in other parts of this specification, one could have done away with "default" properties at the component model level, and have set the value for the corresponding non-default properties in the XML mapping section. However, default properties are required for interface-less binding. Indeed, an interface-less binding has no means to set the non-default version of the property at the operation-level, since there is precisely no operation (there is not even an interface). Hence the mapping needs to be done elsewhere.
A subset of the HTTP properties specified in the HTTP binding extension defined in section 6. WSDL HTTP Binding Extension are present in a SOAP binding when the SOAP binding uses HTTP as the underlying protocol, for example, when the value of the {soap underlying protocol} property of the Binding component is "http://www.w3.org/2003/05/soap/bindings/HTTP/". These properties MUST NOT be used unless the underlying protocol is HTTP.† The allowed properties are the ones that describe the underlying protocol (HTTP):
{http location} and {http location ignore uncited} on Binding Operation components, as defined in 6.5 Binding Operations and 6.8.2.2.2 Controlling the serialization of the query string in the request IRI, respectively.
{http headers} on Binding Message Reference and Binding Fault components, as defined in 6.6 Declaring HTTP Headers
{http query parameter separator default} on Binding components, {http query parameter separator} on Binding Operation components, as defined in 6.5.2 Relationship to WSDL Component Model
{http content encoding default} on Binding and Binding Operation components, {http content encoding} on Binding Message Reference and Binding Fault components, as defined in 6.9 Specifying the Content Encoding
{http cookies} on Binding components, as defined in 6.10 Specifying the Use of HTTP Cookies.
{http authentication scheme} and {http authentication realm} on Endpoint components, as defined in 6.11 Specifying HTTP Access Authentication
<description> <binding name="xs:NCName" interface="xs:QName"? type="http://www.w3.org/ns/wsdl/soap" whttp:queryParameterSeparatorDefault="xs:string"?? whttp:contentEncodingDefault="xs:string"?? whttp:cookies="xs:boolean"? wsoap:version="xs:string"? wsoap:protocol="xs:anyURI" wsoap:mepDefault="xs:anyURI"? > <documentation />* <wsoap:module ref="xs:anyURI" required="xs:boolean"? > <documentation />* </wsoap:module>* <fault ref="xs:QName" wsoap:code="union of xs:QName, xs:token"? wsoap:subcodes="union of (list of xs:QName), xs:token"? whttp:contentEncoding="xs:string"?? > <documentation />* <wsoap:module ... />* <wsoap:header element="xs:QName" mustUnderstand="xs:boolean"? required="xs:boolean"? > <documentation />* </wsoap:header>* <whttp:header ... />*?? </fault>* <operation ref="xs:QName" whttp:location="xs:anyURI"?? whttp:contentEncodingDefault="xs:string"?? whttp:queryParameterSeparator="xs:string"?? whttp:ignoreUncited="xs:boolean"?? wsoap:mep="xs:anyURI"? wsoap:action="xs:anyURI"? > <documentation />* <wsoap:module ... />* <input messageLabel="xs:NCName"? whttp:contentEncoding="xs:string"?? > <documentation />* <wsoap:module ... />* <wsoap:header ... />* <whttp:header ... />*?? </input>* <output messageLabel="xs:NCName"? whttp:contentEncoding="xs:string"?? > <documentation />* <wsoap:module ... />* <wsoap:header ... />* <whttp:header ... />*?? </output>* <infault ref="xs:QName" messageLabel="xs:NCName"?> <documentation />* <wsoap:module ... />* </infault>* <outfault ref="xs:QName" messageLabel="xs:NCName"?> <documentation />* <wsoap:module ... />* </outfault>* </operation>* </binding> <service> <endpoint name="xs:NCName" binding="xs:QName" address="xs:anyURI"? whttp:authenticationScheme="xs:token"?? whttp:authenticationRealm="xs:string"?? > <documentation />* </endpoint> </service> </description>
Note:
The double question marks ("??
") after the
attributes in the whttp
namespace indicates that those
optional attributes only make sense when the SOAP binding uses HTTP
as the underlying protocol, for example, when the value of the
wsoap:protocol
attribute is
"http://www.w3.org/2003/05/soap/bindings/HTTP/".
A Binding component (defined in [WSDL 2.0 Core Language]) is identified as a SOAP binding by assigning the value "http://www.w3.org/ns/wsdl/soap" to the {type} property of the Binding component.
Payload Construction. When formulating the SOAP envelope to be transmitted, the contents of the payload (i.e., the contents of the SOAP Body element information item of the SOAP envelope) MUST be what is defined by the corresponding Interface Message Reference component.† This is further subject to optimization by a feature in use which affects serialization, such as MTOM [SOAP Message Transmission Optimization Mechanism]. The following binding rules MUST be adhered to:
If the value of the {message content model} property of the Interface Message Reference component is "#any", then the payload MAY be any one XML element.
If the value is "#none", then the payload MUST be empty.†
If the value is "#element", then the payload MUST be the element information item identified by the {element declaration} property of the Interface Message Reference component.†
If the Interface Message Reference component is declared using a non-XML type system (as considered in the Types section of [WSDL 2.0 Core Language]), then additional binding rules MUST be defined to indicate how to map those components into the SOAP envelope.†
Note:
This SOAP binding extension only allows one single element in the SOAP body.
SOAP Header Construction. If the {soap headers} property as defined in section 5.9 Declaring SOAP Header Blocks exists and is not empty in a Binding Message Reference or Binding Fault component, then an element information item conforming to the element declaration of a SOAP Header Block component's {element declaration} property, in the {soap headers} property, MAY be turned into a SOAP header block for the corresponding message.
If the value of the SOAP Header Block component's {required} property is "true", the inclusion of this SOAP header block is REQUIRED, otherwise it is OPTIONAL.
And, if the SOAP Header
Block component's {mustUnderstand}
property is present and its value is "true", that particular SOAP
header block MUST be marked with a mustUnderstand
attribute information item with a value of "true" or "1"
as per the SOAP specification.
SOAP header blocks other than the ones declared in the {soap headers} property may be present at run-time, such as the SOAP header blocks resulting from SOAP modules declared as explained in section 5.8 Declaring SOAP Modules.
Every SOAP binding MUST indicate what version of SOAP is in use for the operations of the interface that this binding applies to.†
By default, SOAP 1.2 [SOAP 1.2 Part 1: Messaging Framework (Second Edition)] is used.
The SOAP protocol specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{soap version} REQUIRED. A xs:string, to the Binding component.
<description> <binding name="xs:NCName" interface="xs:QName"? type="xs:anyURI" wsoap:version="xs:string"? > ... </binding> </description>
The XML representation for specifying the SOAP version is an optional attribute information item with the following Infoset properties:
A [local name] of version
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
A type of xs:string
See Table 5-1.
Property | Value |
---|---|
{soap version} | The actual value of the
wsoap:version attribute information item, if
present; otherwise "1.2". |
Every SOAP binding MUST indicate what underlying protocol is in use.†
The SOAP protocol specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{soap underlying protocol} REQUIRED. A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding component. This IRI refers to an appropriate SOAP underlying protocol binding (see SOAP Protocol Binding Framework in [SOAP 1.2 Part 1: Messaging Framework (Second Edition)]), which is to be used for any of the SOAP interactions described by this binding.
<description> <binding name="xs:NCName" interface="xs:QName"? type="xs:anyURI" wsoap:protocol="xs:anyURI" > ... </binding> </description>
The XML representation for specifying the SOAP protocol is a REQUIRED attribute information item with the following Infoset properties:
A [local name] of protocol
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
A type of xs:anyURI
See Table 5-2.
Property | Value |
---|---|
{soap underlying protocol} | The actual value of the
wsoap:protocol attribute information
item. |
For every Interface Fault component contained in an Interface component, a mapping to a SOAP Fault MUST be described.† This binding extension specification allows the user to indicate the SOAP fault code and subcodes that are transmitted for a given Interface Fault component.
The SOAP Fault binding extension adds the following properties to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{soap fault code} REQUIRED. A union of xs:QName and xs:token, to the Binding Fault component, where:
when the value of the {soap version} is "1.2", the allowed QNames MUST be the ones defined by [SOAP 1.2 Part 1: Messaging Framework (Second Edition)], section 5.4.6†;
the allowed token value is "#any".
The value of this property identifies a possible SOAP fault for the operations in scope. If the value of this property is "#any", no assertion is made about the possible value of the SOAP fault code.
{soap fault subcodes} REQUIRED. A union of list of xs:QName, and xs:token where the allowed token value is "#any", to the Binding Fault component. The value of this property identifies one or more subcodes for this SOAP fault. The list of subcodes is the nested sequence of subcodes. An empty list represents a fault code without subcodes.
<description> <binding > <fault ref="xs:QName" wsoap:code="union of xs:QName, xs:token"? wsoap:subcodes="union of (list of xs:QName), xs:token"? > <documentation />* </fault>* </binding> </description>
The XML representation for binding a SOAP Fault are two attribute information items with the following Infoset properties:
wsoap:code OPTIONAL attribute information item
A [local name] of code
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
A type of union of xs:QName and xs:token where the allowed token value is "#any"
wsoap:subcodes OPTIONAL attribute information item
A [local name] of subcodes
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
A type of union of list of xs:QName, and xs:token where the allowed token value is "#any"
See Table 5-3.
Property | Value |
---|---|
{soap fault code} | The actual value of the
code attribute information item, if present;
otherwise "#any". |
{soap fault subcodes} | The actual value of the
subcodes attribute information item, if
present; otherwise "#any". |
For every Interface Operation component contained in an Interface component, in addition to the binding rules (for SOAP 1.2, see 5.10.3 SOAP 1.2 Binding Rules), there may be additional binding information to be specified. This binding extension specification allows the user to indicate the SOAP Message Exchange Pattern (MEP) and a value for the SOAP Action Feature on a per-operation basis.
The SOAP Operation binding extension specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{soap mep default} OPTIONAL. A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding component.† The value of this property identifies the default SOAP Message Exchange Pattern (MEP) for all the Interface Operation components of any Interface component to which this Binding is applied.
{soap mep} OPTIONAL. A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding Operation component.† The value of this property identifies the SOAP Message Exchange Pattern (MEP) for this specific operation (see 5.10.3 SOAP 1.2 Binding Rules, paragraph "SOAP MEP Selection", for constraints on bindings).
{soap action} OPTIONAL. A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding Operation component.† The value of this property identifies the value of the SOAP Action Feature for the initial message of the message exchange pattern of the Interface Operation bound, as specified in the binding rules of bindings to specific versions of SOAP (see 5.10.3 SOAP 1.2 Binding Rules for the SOAP 1.2 binding when the value of the {soap version} property of the Binding component is "1.2").
<description> <binding wsoap:mepDefault="xs:anyURI"? > <operation ref="xs:QName" wsoap:mep="xs:anyURI"? wsoap:action="xs:anyURI"? > </operation> </binding> </description>
The XML representation for binding a Binding Operation are two attribute information items with the following Infoset properties:
wsoap:mep OPTIONAL attribute information item
A [local name] of mep
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
A type of xs:anyURI
wsoap:action OPTIONAL attribute information item
A [local name] of action
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
A type of xs:anyURI
The following attribute information item for the
binding
element information item is
defined:
wsoap:mepDefault OPTIONAL attribute information item
A [local name] of mepDefault
A [namespace name] of " http://www.w3.org/ns/wsdl/soap "
A type of xs:anyURI
See Table 5-4.
Property | Value |
---|---|
{soap mep default} | The actual value of the
wsoap:mepDefault attribute information item,
if present. |
{soap mep} | The actual value of the
wsoap:mep attribute information item, if
present. |
{soap action} | The actual value of the
wsoap:action attribute information item, if
any. |
The SOAP messaging framework allows a Web service to engage one or more additional features (typically implemented as one or more SOAP header blocks), as defined by SOAP Modules (see [SOAP 1.2 Part 1: Messaging Framework (Second Edition)]). This binding extension specification allows description of which SOAP Modules are in use across an entire binding, on a per operation basis or on a per-message basis.
The SOAP Module component adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{soap modules} OPTIONAL. A set of SOAP Module components as defined in 5.8.3 SOAP Module component to the Binding component
Similarly, {soap modules} OPTIONAL, to the Binding Operation component
Similarly, {soap modules} OPTIONAL, to the Binding Message Reference component
Similarly, {soap modules} OPTIONAL, to the Binding Fault component
Similarly, {soap modules} OPTIONAL, to the Binding Fault Reference component
The SOAP modules applicable for a particular operation of any service, consists of all the modules specified in the input or output Binding Message Reference components, the infault or outfault Binding Fault Reference components, those specified within the Binding Fault components, those specified within the Binding Operation components and those specified within the Binding component. If any module is declared in multiple components, then the requiredness of that module is defined by the closest declaration, where closeness is defined by whether it is specified directly at the Binding Message Reference component or Binding Fault Reference component level, the Binding Fault level or the Binding Operation component level or the Binding component level, respectively.
The SOAP Module component identifies a SOAP module that is in use.
The properties of the SOAP Module component are as follows:
{ref} REQUIRED. A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987].† The value of this property uniquely identifies the SOAP module that is in use (as per the SOAP 1.2 [SOAP 1.2 Part 1: Messaging Framework (Second Edition)] processing model).
{required} REQUIRED. A xs:boolean indicating if the SOAP module is required.
{parent} REQUIRED. The Binding, Binding Operation, Binding Message Reference, Binding Fault or Binding Fault Reference components that contains this component in its {soap modules} property.
<description> <binding > <wsoap:module ref="xs:anyURI" required="xs:boolean"? > <documentation ... />* </wsoap:module> <fault> <wsoap:module ... />* </fault> <operation> <wsoap:module ... />* <input> <wsoap:module ... />* </input> <output> <wsoap:module ... />* </output> <infault> <wsoap:module ... />* </infault> <outfault> <wsoap:module ... />* </outfault> </operation> </binding> </description>
The XML representation for a SOAP Module component is an element information item with the following Infoset properties:
A [local name] of module
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
One or more attribute information items amongst its [attributes] as follows:
A REQUIRED ref
attribute information item
with the following Infoset properties:
A [local name] of ref
A [namespace name] which has no value
A type of xs:anyURI
An OPTIONAL required
attribute information
item with the following Infoset properties:
A [local name] of required
A [namespace name] which has no value
A type of xs:boolean
Zero or more namespace qualified attribute information items. The [namespace name] of such attribute information items MUST NOT be "http://www.w3.org/ns/wsdl" and MUST NOT be "http://www.w3.org/ns/wsdl/soap".
Zero or more element information item amongst its [children], in order, as follows:
Zero or more documentation
element information
items as defined in [WSDL 2.0 Core
Language].
Zero or more namespace-qualified element information items amongst its [children]. The [namespace name] of such element information items MUST NOT be "http://www.w3.org/ns/wsdl" and MUST NOT be "http://www.w3.org/ns/wsdl/soap".
See Table 5-5.
Property | Value |
---|---|
{soap modules} | The set of SOAP Module components corresponding to
all the module element information item in
the [children] of the binding , operation ,
fault , input , output ,
infault , outfault element information
items, if any. |
{ref} | The actual value of the
ref attribute information item. |
{required} | The actual value of the
required attribute information item, if
present; otherwise "false". |
{parent} | The Binding,
Binding Operation,
Binding Message Reference,
Binding Fault or
Binding Fault Reference component corresponding to the
binding , operation , fault ,
input , output , infault or
outfault element information item in
[parent]. |
WSDL Version 2.0 Part 1: Core Language [WSDL 2.0 Core Language] defines a fragment identifier syntax for identifying components of a WSDL 2.0 document.
A SOAP Module component can be identified using the wsdl.extension XPointer Framework scheme:
wsdl.extension(http://www.w3.org/ns/wsdl/soap,
wsoap.module(parent/ref))
parent
is the pointer part of the
{parent} component, as specified in appendix A.2, Fragment Identifiers in [WSDL 2.0 Core Language]. parts.
ref
is the value of the {ref} property of the component.
SOAP allows the use of header blocks in the header part of the message. This binding extension allows users to declare the SOAP header blocks in use on a per-message and on a per-fault basis.
The SOAP Header Blocks binding extension specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{soap headers} OPTIONAL. A set of SOAP Header Block components as defined in 5.9.3 SOAP Header Block component, to the Binding Message Reference component.
Similarly, {soap headers} OPTIONAL, to the Binding Fault component.
A SOAP Header Block component describes an abstract piece of header data (SOAP header block) that is associated with the exchange of messages between the communicating parties. The presence of a SOAP Header Block component in a WSDL description indicates that the service supports headers, and MAY require a client interacting with the service to use the described header block. Zero or one such header block may be used.
The properties of the SOAP Header Block component are as follows:
{element declaration} REQUIRED. An XML element declaration in the {element declarations} property of the Description component. This XML element declaration uniquely represents a specific SOAP header block.
{mustUnderstand}
REQUIRED. A xs:boolean. When its value is "true", the SOAP header
block MUST be decorated with a SOAP mustUnderstand
attribute information item with a value of "true"; if so,
the XML element declaration referenced by the {element
declaration} property MUST allow this SOAP
mustUnderstand
attribute information
item.†
Otherwise, no additional constraint is placed on the presence and
value of a SOAP mustUnderstand
attribute
information item.
{required} REQUIRED. A xs:boolean indicating if the SOAP header block is required. If the value is "true", then the SOAP header block MUST be included in the message.† If it is "false", then the SOAP header block MAY be included.
{parent} REQUIRED. The Binding Fault or Binding Message Reference component that contains this component in its {soap headers} property.
<description> <binding name="xs:NCName" type="http://www.w3.org/ns/wsdl/soap" > <fault ref="xs:QName" > <wsoap:header element="xs:QName" mustUnderstand="xs:boolean"? required="xs:boolean"? > <documentation />* </wsoap:header>* ... </fault>* <operation ref="xs:QName" > <input messageLabel="xs:NCName"?> <wsoap:header ... />* ... </input>* <output messageLabel="xs:NCName"?> <wsoap:header ... />* ... </output>* </operation>* </binding> </description>
The XML representation for a SOAP Header Block component is an element information item with the following Infoset properties:
A [local name] of header
A [namespace name] of "http://www.w3.org/ns/wsdl/soap"
One or more attribute information items amongst its [attributes] as follows:
A REQUIRED element
attribute information
item with the following Infoset properties:
A [local name] of element
A [namespace name] which has no value
A type of xs:QName
An OPTIONAL mustUnderstand
attribute
information item with the following Infoset properties:
A [local name] of mustUnderstand
A [namespace name] which has no value
A type of xs:boolean
An OPTIONAL required
attribute information
item with the following Infoset properties:
A [local name] of required
A [namespace name] which has no value
A type of xs:boolean
Zero or more namespace qualified attribute information items. The [namespace name] of such attribute information items MUST NOT be "http://www.w3.org/ns/wsdl" and MUST NOT be "http://www.w3.org/ns/wsdl/soap".
Zero or more element information item amongst its [children], in order, as follows:
Zero or more documentation
element information
items as defined in [WSDL 2.0 Core
Language].
Zero or more namespace-qualified element information items amongst its [children]. The [namespace name] of such element information items MUST NOT be "http://www.w3.org/ns/wsdl" and MUST NOT be "http://www.w3.org/ns/wsdl/soap".
See Table 5-6.
Property | Value |
---|---|
{soap headers} | The set of SOAP Header Block components
corresponding to all the header element
information item in the [children] of the fault ,
input or output element information
item, if any. |
{element declaration} | The element declaration from the
{element
declarations} resolved to by the value of the
element attribute information item. The value of the
element attribute information item MUST
resolve to a global element declaration from the {element
declarations} property of the
Description component.† |
{mustUnderstand} | The actual value of the
mustUnderstand attribute information item, if
present; otherwise "false". |
{required} | The actual value of the
required attribute information item, if
present; otherwise "false". |
{parent} | The
Binding Fault or
Binding Message Reference component corresponding to the
fault , input or output
element information item in [parent]. |
WSDL Version 2.0 Part 1: Core Language [WSDL 2.0 Core Language] defines a fragment identifier syntax for identifying components of a WSDL 2.0 document.
A SOAP Header Block component can be identified using the wsdl.extension XPointer Framework scheme:
wsdl.extension(http://www.w3.org/ns/wsdl/soap,
wsoap.header(parent/element
declaration))
parent
is the
"wsdl.*" pointer part of the {parent} component, as specified in appendix A.2, Fragment Identifiers in [WSDL 2.0 Core Language], i.e. without the xmlns() pointer parts.
element declaration
is the value of the
{name} of the Element
Declaration component that is referred to by the {element
declaration} property of the SOAP Header
Block component.
This section describes the SOAP 1.2 binding for WSDL 2.0. This binding does NOT natively support the full range of capabilities from SOAP 1.2. Certain capabilities not widely used, or viewed as problematic in practice, are not available -in many cases because supporting them was considered as adding considerable complexity to the language. Here are examples of such unsupported capabilities:
multiple children of the SOAP Body;
multiple SOAP Fault Detail entries;
non-qualified elements as children of a SOAP Fault Detail.
A WSDL SOAP Binding is identified as a SOAP 1.2 binding by assigning the value "1.2" to the {soap version} property of the Binding component.
The WSDL SOAP 1.2 binding extension defined in this section is an extension of the SOAP binding defined in section 5. WSDL SOAP Binding Extension to enable Web service applications to use SOAP 1.2 [SOAP 1.2 Part 1: Messaging Framework (Second Edition)].
The WSDL SOAP 1.2 binding extension supports the SOAP 1.2 HTTP binding defined by the [SOAP 1.2 Part 2: Adjuncts (Second Edition)] specification. This is indicated by assigning the URI "http://www.w3.org/2003/05/soap/bindings/HTTP/" (as defined by [SOAP 1.2 Part 2: Adjuncts (Second Edition)]) to the {soap underlying protocol} property. Other values MAY be used for this property in conjunction with the SOAP 1.2 binding extension defined by this specification provided that the semantics of such protocols are consistent with this binding extension.
Default rules in section 5.10.3 SOAP 1.2 Binding Rules define the relationship between SOAP message exchange patterns defined in [SOAP 1.2 Part 2: Adjuncts (Second Edition)] and WSDL message exchange patterns defined in section 2. Predefined Message Exchange Patterns.
These binding rules are applicable to SOAP 1.2 bindings.
SOAP Action Feature. The value of the SOAP Action Feature for the initial message of the message exchange pattern of the Interface Operation bound is specified by the {soap action} property of this Binding Operation component. If the Binding Operation component does NOT have a {soap action} property defined, then the SOAP Action Feature (see [SOAP 1.2 Part 2: Adjuncts (Second Edition)]) has NO value. Otherwise, its value is the value of the SOAP Action Feature for the initial message of the message exchange pattern. The {soap action} property has NO effect when binding to the SOAP-Response MEP.
SOAP MEP Selection. For a given Interface Operation component, if there is a Binding Operation component whose {interface operation} property matches the component in question and its {soap mep} property has a value, then the SOAP MEP is the value of the {soap mep} property. Otherwise, the SOAP MEP is the value of the Binding component's {soap mep default}, if any. Otherwise, the Interface Operation component's {message exchange pattern} property MUST have the value "http://www.w3.org/ns/wsdl/in-out", and the SOAP MEP is the URI "http://www.w3.org/2003/05/soap/mep/request-response/" identifying the SOAP Request-Response Message Exchange Pattern as defined in [SOAP 1.2 Part 2: Adjuncts (Second Edition)].†
SOAP Detail Element. If any, the value of the SOAP "Detail" element MUST be the element information item identified by the {element declaration} property of the Interface Fault component.†
HTTP Method Selection. This default binding rule is applicable when the value of the {soap underlying protocol} property of the Binding component is "http://www.w3.org/2003/05/soap/bindings/HTTP/". If the SOAP MEP selected as specified above has the value "http://www.w3.org/2003/05/soap/mep/request-response/" then the HTTP method used is "POST". If the SOAP MEP selected has the value "http://www.w3.org/2003/05/soap/mep/soap-response/" then the HTTP method used is "GET".†
This section describes the relationship between WSDL components and SOAP 1.2 MEP properties as described in [SOAP 1.2 Part 2: Adjuncts (Second Edition)].
This section describes the mapping from the WSDL "http://www.w3.org/ns/wsdl/in-out" Message Exchange Pattern (MEP) to the SOAP "http://www.w3.org/2003/05/soap/mep/request-response/" MEP (as would be the case for a usual SOAP-over-HTTP In-Out operation). Extensions (such as [WSA 1.0 Core]) MAY alter these mappings.
As the client, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RequestingSOAPNode".
The SOAP "http://www.w3.org/2003/05/soap/mep/ImmediateDestination" property takes the value of the HTTP Request IRI, as defined in 6.4.6 HTTP Request IRI, and modified as described in section 6.8.1 Serialization of the instance data in parts of the HTTP request IRI.
The WSDL "In" message is mapped to the SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property.
The WSDL "Out" message maps to the SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" property.
As the service, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RespondingSOAPNode".
The WSDL "In" message is mapped to the SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" property.
The WSDL "Out" message maps to the SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property.
This section describes the mapping from the WSDL "http://www.w3.org/ns/wsdl/in-out" MEP to the "http://www.w3.org/2003/05/soap/mep/soap-response/" SOAP MEP. Extensions (such as [WSA 1.0 Core]) MAY alter these mappings.
As the client, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RequestingSOAPNode".
The SOAP "http://www.w3.org/2003/05/soap/mep/ImmediateDestination" property takes the value of the HTTP Request IRI, as defined in 6.4.6 HTTP Request IRI, and modified as described in section 6.8.1 Serialization of the instance data in parts of the HTTP request IRI.
The value of the {message content model} property for the Interface Message Reference components of the {interface message references} property MUST be either "#element" or "#none". When the value is:
"#element", the WSDL "In" message is mapped to the destination URI, as per the rules in section 6.8.2 Serialization as application/x-www-form-urlencoded .
"#none", the WSDL "In" message is empty.
The SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property has no value.
The WSDL "Out" message maps to the SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" property.
As the service, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RespondingSOAPNode".
The WSDL "In" message is constructed from the destination URI as per the rules in section 6.8.2 Serialization as application/x-www-form-urlencoded , WHEN the value of the {message content model} property for the Interface Message Reference components of the {interface message references} property is "#element".
The WSDL "Out" message maps to the SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property.
This section describes the mapping from the WSDL "http://www.w3.org/ns/wsdl/in-only" MEP to the SOAP "http://www.w3.org/2003/05/soap/mep/request-response/" MEP. Extensions (such as [WSA 1.0 Core]) MAY alter these mappings.
As the client, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RequestingSOAPNode".
The SOAP "http://www.w3.org/2003/05/soap/mep/ImmediateDestination" property takes the value of the HTTP Request IRI, as defined in 6.4.6 HTTP Request IRI, and modified as described in section 6.8.1 Serialization of the instance data in parts of the HTTP request IRI.
The WSDL "In" message is mapped to the SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property.
The SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" property has no value.
As the service, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RespondingSOAPNode".
The WSDL "In" message is mapped to the SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" property.
The SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property has no value.
This section describes the mapping from the WSDL "http://www.w3.org/ns/wsdl/robust-in-only" MEP to the SOAP "http://www.w3.org/2003/05/soap/mep/request-response/" MEP. Extensions (such as [WSA 1.0 Core]) MAY alter these mappings.
As the client, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RequestingSOAPNode".
The SOAP "http://www.w3.org/2003/05/soap/mep/ImmediateDestination" property takes the value of the HTTP Request IRI, as defined in 6.4.6 HTTP Request IRI, and modified as described in section 6.8.1 Serialization of the instance data in parts of the HTTP request IRI.
The WSDL "In" message is mapped to the SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" property.
The SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" can contain a SOAP fault.
As the service, the property "http://www.w3.org/2003/05/soap/bindingFramework/ExchangeContext/Role" takes the value "RespondingSOAPNode".
The WSDL "In" message is mapped to the SOAP "http://www.w3.org/2003/05/soap/mep/InboundMessage" property.
The SOAP "http://www.w3.org/2003/05/soap/mep/OutboundMessage" can contain a SOAP fault.
An element information item whose namespace name is
"http://www.w3.org/ns/wsdl" and whose local part is
description
conforms to this binding extension
specification if the element information items and
attribute information items whose namespace is
http://www.w3.org/ns/wsdl/soap conform to the XML Schema for that
element or attribute as defined by this specification and
additionally adheres to all the constraints contained in this
specification.
The HTTP binding extension described in this section is an extension for [WSDL 2.0 Core Language] to enable Web services applications to use HTTP 1.1 [IETF RFC 2616] (as well as other versions of HTTP) and HTTPS [IETF RFC 2818]. This binding extension extends WSDL 2.0 by adding properties to the component model defined in [WSDL 2.0 Core Language]. In addition an XML Infoset representation for these additional properties is provided, along with a mapping from that representation to the various component properties.
As allowed in [WSDL 2.0 Core Language], a Binding component can exist without indicating a specific Interface component that it applies to and, in this case, no Binding Operation or Binding Fault components can be present in the Binding component.
The HTTP binding extension is designed with the objective of minimizing what needs to be explicitly declared for common cases. This is achieved by defining a set of default rules that affect all Interface Operation components of an Interface component to which the HTTP binding extension is applied, unless specifically overridden by a Binding Operation component. Thus, if a given Interface Operation component is not referred to specifically by a Binding Operation component, then all the default rules apply to that Interface Operation component. As a result, in accordance with the requirements of [WSDL 2.0 Core Language], all operations of an Interface component will be bound by this binding extension.
Note: As in other parts of this specification, one could have done away with "default" properties at the component model level, and have set the value for the corresponding non-default properties in the XML mapping section. However, default properties are required for interface-less binding. Indeed, an interface-less binding has no means to set the non-default version of the property at the operation-level, since there is precisely no operation (there is not even an interface). Hence the mapping needs to be done elsewhere.
[Definition: The internal tree representation of an input, output or fault message is called an instance data, and is constrained by the schema definition associated with the message: the XML element referenced in the {element declaration} property of the Interface Message Reference component for input and output messages (unless the {message content model} is "#any"), and in the {element declaration} property of an Interface Fault component for faults.]
A Binding component (defined in [WSDL 2.0 Core Language]) is identified as an HTTP binding by assigning the value "http://www.w3.org/ns/wsdl/http" to the {type} property of the Binding component.
<description> <binding name="xs:NCName" interface="xs:QName"? type="http://www.w3.org/ns/wsdl/http" whttp:methodDefault="xs:string"? whttp:queryParameterSeparatorDefault="xs:string"? whttp:cookies="xs:boolean"? whttp:contentEncodingDefault="xs:string"? > <documentation />? <fault ref="xs:QName" whttp:code="union of xs:int, xs:token"? whttp:contentEncoding="xs:string"? > <documentation />* <whttp:header name="xs:string" type="xs:QName" required="xs:boolean"? > <documentation />* </whttp:header>* </fault>* <operation ref="xs:QName" whttp:location="xs:anyURI"? whttp:method="xs:string"? whttp:inputSerialization="xs:string"? whttp:outputSerialization="xs:string"? whttp:faultSerialization="xs:string"? whttp:queryParameterSeparator="xs:string"? whttp:contentEncodingDefault="xs:string"? whttp:ignoreUncited="xs:boolean"? > <documentation />* <input messageLabel="xs:NCName"? whttp:contentEncoding="xs:string"? > <documentation />* <whttp:header ... />* </input>* <output messageLabel="xs:NCName"? whttp:contentEncoding="xs:string"? > <documentation />* <whttp:header ... />* </output>* <infault ref="xs:QName" messageLabel="xs:NCName"? > <documentation />* </infault>* <outfault ref="xs:QName" messageLabel="xs:NCName"? > <documentation />* </outfault>* </operation>* </binding> <service> <endpoint name="xs:NCName" binding="xs:QName" address="xs:anyURI"? whttp:authenticationScheme="xs:token"? whttp:authenticationRealm="xs:string"? > <documentation />* </endpoint> </service> </description>
An implementation of the HTTP binding extension MUST support the following extensions:
"http://www.w3.org/ns/wsdl-extensions/safe" (see 3.1 Operation safety)
When formulating the HTTP message to be transmitted, the HTTP request method used MUST be selected using one of the following:†
For a given Interface Operation component, if there is a Binding Operation component whose {interface operation} property matches the component in question and its {http method} property has a value, then the value of the {http method} property.
Otherwise, the value of the Binding component's {http method default}, if any.
Otherwise, if a {safe} property as defined in 3.1 Operation safety is present on the bound Interface Operation component and has a value of "true", the value "GET".
Otherwise, the value "POST".
When formulating the HTTP message to be transmitted, content encoding for a given Binding Message Reference component is determined as follows:†
If the {http
content encoding} property has a non-empty value, a
Content-Encoding
header-field MUST be inserted with
the value of this property.
Otherwise, if the value of the parent
Binding Operation component's {http
content encoding default} property has a non-empty value, a
Content-Encoding
header-field MUST be inserted with
the value of this property.
Otherwise, if the value of the grandparent Binding
component's {http content
encoding default} property has a non-empty value, a
Content-Encoding
header-field MUST be inserted with
the value of this property.
When formulating the HTTP fault message to be transmitted, content encoding for a given Binding Fault component is determined as follows:†
If the {http content
encoding} property has a non-empty value, then a
Content-Encoding
header-field MUST be inserted with
the value of this property.
If the {http content
encoding default} property has a non-empty value, then a
Content-Encoding
header-field MUST be inserted with
the value of this property.
The body of the response message is encoded using the specified content encoding.
When formulating the HTTP message to be transmitted, the contents of the payload (i.e. the contents of the HTTP message body) MUST be what is defined by the corresponding Interface Message Reference or Interface Fault components, serialized as specified by the serialization format used.†
[Definition: The serialization
format is a media type token ("type/subtype"). It
identifies rules to serialize the payload in an HTTP message. Its
value is defined by the following rules. The HTTP request
serialization format MUST be in the media type range specified by
the {http input
serialization} property. The HTTP response serialization format
MUST be in the media type range specified by the {http output
serialization} property. The HTTP serialization format of a
fault MUST be in the media type range specified by the {http fault
serialization} property. The concept of media type range is
defined in Section 14.1 of [IETF RFC
2616]. The serialization format MAY have
associated media type parameters (specified with
the parameter
production of media-range
in Section 14.1 of [IETF RFC
2616]. ]
Section 6.8 Serialization Format of Instance Data defines serialization formats supported by this binding extension along with their constraints.
Interface Message Reference component:
If the value of the {message content model} property of the Interface Message Reference bound is "#any" or "#element", the serialization of the instance data is specified as defined in section 6.4.3.1 Serialization rules for XML messages.
If the value is "#none", then the payload MUST be empty and the value of the corresponding serialization property ({http input serialization} or {http output serialization}) is ignored.†
If the value is "#other", then the serialization
format and its associated media type parameters, if any,
specifies the value of the HTTP Content-Type
entity-header field as defined in section 14.17 of [IETF RFC 2616]. The serialization of the
payload is undefined.
Interface Fault component: the serialization of the instance data is specified as defined in section 6.4.3.1 Serialization rules for XML messages.
If the Interface Message Reference component or the Interface Fault component is declared using a non-XML type system (as considered in the Types section of [WSDL 2.0 Core Language]), then additional binding rules MUST be defined in an extension specification to indicate how to map those components into the HTTP envelope.†
The serialization rules for messages whose {message content model} is either "#element" or "#any", AND the serialization rules for fault messages, are as follows:†
If the serialization format is "application/x-www-form-urlencoded", then the serialization of the instance data is defined by section 6.8.2 Serialization as application/x-www-form-urlencoded .
If the serialization format is "multipart/form-data", then the serialization of the instance data is defined by section 6.8.4 Serialization as multipart/form-data .
If the serialization format is "application/xml", then the serialization of the instance data is defined by section 6.8.3 Serialization as application/xml .
Otherwise, then the serialization of the instance data is defined
by section 6.8.3
Serialization as application/xml with the following
additional rule: the value of the HTTP Content-Type
entity-header field is the value of the serialization
format and its associated media type parameters, if any.
Section Table 6-1 defines the default values for the GET, POST, PUT and DELETE values of the HTTP method as selected in section 6.4.1 HTTP Method Selection.
HTTP Method | Default Input Serialization | Default Output Serialization |
---|---|---|
Selected in 6.4.1 HTTP Method Selection | {http input serialization} | {http output serialization} |
GET |
application/x-www-form-urlencoded |
application/xml |
POST | application/xml |
application/xml |
PUT | application/xml |
application/xml |
DELETE |
application/x-www-form-urlencoded |
application/xml |
Note:
The application/x-www-form-urlencoded
serialization
format places constraints on the XML Schema definition of the
{element
declaration} property of the
Interface Message Reference components of the
Interface Operation component bound (see 6.8.2 Serialization as
application/x-www-form-urlencoded ).
The default value for the {http input
serialization} and {http output
serialization} properties for any other HTTP method selected is
application/xml
.
Mechanisms other than setting the serialization properties MAY
modify the serialization format of the instance data corresponding to the
message. An example of such modification is the WSDL SOAP Binding
HTTP IRI Serialization rules specified in 5.3 SOAP Binding Rules. This
binding extension specifies that the SOAP-Response
Message Exchange Pattern ([SOAP
1.2 Part 2: Adjuncts (Second Edition)], Section 6.3)
supports input message serialization only as
application/x-www-form-urlencoded
. Other examples are
other message exchange patterns or binding extensions.
If the {http headers} property as defined in section 6.6 Declaring HTTP Headers exists and is not empty in a Binding Message Reference or Binding Fault component, HTTP headers conforming to each HTTP Header component contained in this {http headers} property MAY be serialized as follows:†
The HTTP header field name used is the value of the {name} property of the HTTP Header component. The HTTP binding MUST NOT set an HTTP header field corresponding to the value of the {name} property already set by another mechanism, such as the HTTP stack or another feature.†
The HTTP header field value, whose XML Schema type is declared
by the {type
definition} property of the HTTP Header component, is serialized
following the rules of the field-value
production of
section 4.2 of [IETF RFC
2616].
If the value of an HTTP Header component's {required} property is "true", the inclusion of this HTTP header field is REQUIRED†, otherwise it is OPTIONAL.
When formulating the HTTP Request, the HTTP Request IRI is an absolute IRI reference and is the value of the {http location} property of the Binding Operation component, resolved using the value of the {address} property of the Endpoint component (see section 5 of [IETF RFC 3986]).† If the {http location} property is not set, the HTTP Request IRI is the value of the {address} property of the Endpoint component. Input serializations may define additional processing rules to be applied to the value of {http location} before applying the process of reference resolution, i.e. before combining it with the {address} property of the endpoint element to form the HTTP Request IRI. For example, the three serialization formats defined in section 6.8 Serialization Format of Instance Data define a syntax to use the {http location} as a template using elements of the instance data.
If the resulting IRI uses the https
scheme, then
HTTP over TLS [IETF RFC 2818]
is used to send the HTTP request.
The HTTP Request IRI identifies the resource upon which to apply the request and is transmitted using the Request-URI, and optionally the Host header field, as defined in [IETF RFC 2616].
This binding extension specification provides a binding to HTTP of Interface Operation components whose {message exchange pattern} property has a value amongst:
"http://www.w3.org/ns/wsdl/in-only"
"http://www.w3.org/ns/wsdl/robust-in-only"
"http://www.w3.org/ns/wsdl/in-out"
This HTTP binding extension MAY be used with other message exchange patterns, such as outbound message exchange patterns, provided that additional semantics are defined, for example through an extension.
Each of the three supported message exchange patterns above involves one or two messages or faults being exchanged. The first one is transmitted using an HTTP request, and the second one is transmitted using the corresponding HTTP response.† In cases where only one single message is being sent, the message body of the HTTP response MUST be empty.†
For successful responses, the HTTP response code MUST be:
202 when the MEP is "http://www.w3.org/ns/wsdl/in-only"†
204 when the MEP is "http://www.w3.org/ns/wsdl/robust-in-only"†
For every Binding Operation component corresponding to such Interface Operation components, this binding extension specification allows the user to indicate the HTTP method to use, the input, output and fault serialization, and the location of the bound operation.
The HTTP binding extension adds the following properties to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{http location} OPTIONAL. An xs:anyURI, to the Binding Operation component. It MUST contain an IRI reference and MUST NOT include a fragment identifier component.†
{http method default} OPTIONAL. A xs:string, to the Binding component, indicating the default value for the HTTP Request Method for all the Interface Operation components of any Interface component to which this Binding is applied.
{http method} OPTIONAL. A xs:string, to the Binding Operation component, indicating the value for the HTTP Request Method for this specific Binding Operation.
{http input serialization} REQUIRED. A xs:string, to the Binding Operation component, indicating allowed serialization rules of the HTTP Request message for this specific operation, as described in section 6.5.3 Specification of serialization rules allowed.
{http output serialization} REQUIRED. A xs:string, to the Binding Operation component, indicating allowed serialization rules of the HTTP Response message for this specific operation, as described in section 6.5.3 Specification of serialization rules allowed.
{http fault serialization} REQUIRED. A xs:string, to the Binding Operation component, indicating allowed serialization rules of the HTTP Response message for this specific operation in case a fault is returned, as described in section 6.5.3 Specification of serialization rules allowed.
{http query parameter separator default} REQUIRED. A xs:string, to the Binding component, indicating the default query parameter separator character for all the Interface Operation components of any Interface component to which this Binding is applied to.
{http query parameter separator} OPTIONAL. A xs:string, to the Binding Operation component, indicating the query parameter separator character for this Binding Operation.
The
value of the {http input
serialization}, {http output
serialization} and {http fault
serialization} properties is similar to the value allowed for
the Accept
HTTP header defined by the HTTP 1.1
specification, Section 14.1 (see [IETF RFC
2616]) and MUST follow the production rules defined in
that section except for the following:†
The prefix "Accept:"
MUST NOT be used.
The rule qdtext
is changed from:
qdtext = <any TEXT except<">>
to:
qdtext = <any CHAR except<">>
This change is made to disallow non-US-ASCII OCTETs.
These properties indicate the range of media types and associated parameters with which an instance MAY be serialized. The value of the serialization format used for a message is a media type which MUST be covered by this range.† Wild cards (for example, "application/*") SHOULD NOT be used in this attribute information item since they may lead to interoperability problems.†
The use of {http input serialization}, {http output serialization} and {http fault serialization} is specified in section 6.4.3 Payload Construction And Serialization Format.
<description> <binding whttp:methodDefault="xs:string"? whttp:queryParameterSeparatorDefault="xs:string"? > <operation ref="xs:QName" whttp:location="xs:anyURI"? whttp:method="xs:string"? whttp:inputSerialization="xs:string"? whttp:outputSerialization="xs:string"? whttp:faultSerialization="xs:string"? whttp:queryParameterSeparator="xs:string"? > </operation> </binding> </description>
The XML representation for binding an Operation are six attribute information items with the following Infoset properties:
An OPTIONAL location
attribute information
item with the following Infoset properties:
A [local name] of location
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:anyURI
An OPTIONAL method
attribute information
item with the following Infoset properties:
A [local name] of method
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
An OPTIONAL inputSerialization
attribute
information item with the following Infoset properties:
A [local name] of inputSerialization
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
An OPTIONAL outputSerialization
attribute
information item with the following Infoset properties:
A [local name] of outputSerialization
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
An OPTIONAL faultSerialization
attribute
information item with the following Infoset properties:
A [local name] of faultSerialization
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
An OPTIONAL queryParameterSeparator
attribute
information item with the following Infoset properties:
A [local name] of queryParameterSeparator
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string whose pattern facet is
"[&;a-zA-Z0-9\-\._~!$'\(\):@/\?\*\+,]{1,1}",
"&"
and ";"
being the most frequently
used characters in practice.
The following attribute information items for the
binding
element information item are
defined:
An OPTIONAL methodDefault
attribute information
item with the following Infoset properties:
A [local name] of methodDefault
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
An OPTIONAL queryParameterSeparatorDefault
attribute information item with the following Infoset
properties:
A [local name] of
queryParameterSeparatorDefault
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string whose length facet value is "1". The allowed characters are the same as for the {http query parameter separator} property above.
See Table 6-2.
Property | Value |
---|---|
{http location} | The actual value of the
whttp:location attribute information item, if
present. |
{http method default} | The actual value of the
whttp:methodDefault attribute information
item, if present. |
{http method} | The actual value of the
whttp:method attribute information item, if
present. |
{http input serialization} | The actual value of the
whttp:inputSerialization attribute information
item, if present; otherwise, the default value as defined in
6.4 HTTP Binding
Rules. |
{http output serialization} | The actual value of the
whttp:outputSerialization attribute information
item, if present; otherwise, the default value as defined in
6.4 HTTP Binding
Rules. |
{http fault serialization} | The actual value of the
whttp:faultSerialization attribute information
item, if present; otherwise "application/xml". |
{http query parameter separator default} | The actual value of the
whttp:queryParameterSeparatorDefault attribute
information item, if present; otherwise, "&". |
{http query parameter separator} | The actual value of the
whttp:queryParameterSeparator attribute
information item, if present. |
HTTP allows the use of headers in messages. This binding extension allows users to declare the HTTP headers in use on a per message and on a per-fault basis.
The HTTP Header binding extension specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{http headers} OPTIONAL. A set of HTTP Header components as defined in 6.6.3 HTTP Header component, to the Binding Message Reference component.
Similarly, {http headers} OPTIONAL, to the Binding Fault component.
A Binding Message Reference or a Binding Fault component's {http headers} property MUST NOT contain multiple HTTP Header components with the same {name} property.†
An HTTP Header component describes an abstract piece of header data (HTTP header field) that is associated with the exchange of messages between the communicating parties. The presence of a HTTP Header component in a WSDL description indicates that the service support headers, and MAY require a client interacting with the service to use the described header field. Zero or one such header field may be used.
The properties of the HTTP Header component are as follows:
{name} REQUIRED. An
xs:string whose pattern facet is
"[!#-'*+\-.0-9A-Z^-z|~]+", the name of the HTTP header
field. The value of this property follows the
field-name
production rules as specified in section
4.2 of [IETF RFC 2616].
{type definition} REQUIRED. A Type Definition component, in the {type definitions} property of the Description component, constraining the value of the HTTP header field. This type MUST be a simple type.†
{required} REQUIRED. An xs:boolean indicating if the HTTP header field is required. If the value is "true", then the HTTP header field MUST be included in the message.† If it is "false", then the HTTP header field MAY be included.
{parent} REQUIRED. The Binding Fault or Binding Message Reference component that contains this component in its {http headers} property.
<description> <binding name="xs:NCName" type="http://www.w3.org/ns/wsdl/http" > <fault ref="xs:QName"> <whttp:header name="xs:string" type="xs:QName" required="xs:boolean"? > <documentation />* </whttp:header>* ... </fault>* <operation ref="xs:QName" > <input messageLabel="xs:NCName"?> <whttp:header ... />* ... </input>* <output messageLabel="xs:NCName"?> <whttp:header ... />* ... </output>* </operation>* </binding> </description>
The XML representation for a HTTP Header component is an element information item with the following Infoset properties:
A [local name] of header
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
One or more attribute information items amongst its [attributes] as follows:
A REQUIRED name
attribute information item
with the following Infoset properties:
A [local name] of name
A [namespace name] which has no value
A type of xs:string whose pattern facet is "[!#-'*+\-.0-9A-Z^-z|~]+".
A REQUIRED type
attribute information item
with the following Infoset properties:
A [local name] of type
A [namespace name] which has no value
A type of xs:QName
An OPTIONAL required
attribute information
item with the following Infoset properties:
A [local name] of required
A [namespace name] which has no value
A type of xs:boolean
Zero or more namespace qualified attribute information items. The [namespace name] of such attribute information items MUST NOT be "http://www.w3.org/ns/wsdl" and MUST NOT be "http://www.w3.org/ns/wsdl/http".
Zero or more element information item amongst its [children], in order, as follows:
Zero or more documentation
element information
items as defined in [WSDL 2.0 Core
Language].
Zero or more namespace-qualified element information items amongst its [children]. The [namespace name] of such element information items MUST NOT be "http://www.w3.org/ns/wsdl" and MUST NOT be "http://www.w3.org/ns/wsdl/http".
See Table 6-3.
Property | Value |
---|---|
{http headers} | The set of HTTP Header components corresponding to
all the header element information item in
the [children] of the fault , input or
output element information item, if any. |
{name} | The value of the name
attribute information item. |
{type definition} | The
Type Definition component from the {type
definitions} property of the
Description component resolved to by the value of the
type attribute information item. |
{required} | The actual value of the
required attribute information item, if
present; otherwise "false". |
{parent} | The
Binding Fault or
Binding Message Reference component corresponding to the
fault , input or output
element information item in [parent]. |
WSDL Version 2.0 Part 1: Core Language [WSDL 2.0 Core Language] defines a fragment identifier syntax for identifying components of a WSDL 2.0 document.
An HTTP Header component can be identified using the wsdl.extension XPointer Framework scheme:
wsdl.extension(http://www.w3.org/ns/wsdl/http,
whttp.header(parent/name))
parent
is the pointer part of the
{parent} component, as
specified
in WSDL Version 2.0 Part 1: Core Language.
name
is the {name} property value.
For every Interface Fault component contained in an Interface component, an HTTP error code MAY be defined. It represents the error code that will be used by the service in case the fault needs to be returned.
The fault definition SHOULD agree with the definition of the HTTP error codes, as specified in section 8 of [IETF RFC 3205].†
The HTTP Fault binding extension adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{http error status code} REQUIRED. A union of xs:int and xs:token where the allowed token value is "#any", to the Binding Fault component. An integer value of this property identifies the error Status-Code as defined by [IETF RFC 2616] that the service will use in case the fault is returned.† If the value of this property is "#any", no claim is made by the service.
<description> <binding > <fault ref="xs:QName" whttp:code="union of xs:int, xs:token"? > </fault>* </binding> </description>
The XML representation for binding an HTTP Fault is an attribute information item with the following Infoset properties:
a code
OPTIONAL attribute information
item
A [local name] of code
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of union of xs:int and xs:token where the allowed token value is "#any"
See Table 6-4.
Property | Value |
---|---|
{http error status code} | The actual value of the
whttp:code attribute information item, if
present; otherwise "#any". |
This section specifies three serialization formats defining rules to encode the instance data of an input or output message as an HTTP message. Table 6-5 and Table 6-6 give an overview of those serialization formats and their constraints. All of them allow serialization of parts of the instance data in the HTTP Request IRI, as defined in section 6.8.1 Serialization of the instance data in parts of the HTTP request IRI.
Other serialization formats may be defined. Those MAY place restrictions on the style of the Interface Operation bound.
- | Serialization of the instance data in parts of an HTTP message | ||||
---|---|---|---|---|---|
In the request URI | In the message body | ||||
application/x-www-form-urlencoded | multipart/form-data | application/xml | |||
HTTP request (input message) | Without message body: GET, DELETE, … | All, some or none | - | - | - |
With message body: POST, PUT, … | All, some or none | Remainder | All | All | |
HTTP response (output message) | - | - | - | All |
HTTP Method | Request | |||
---|---|---|---|---|
Request URI: query parameters or path components | Input serialization | |||
application/x-www-form-urlencoded | multipart/form-data | application/xml | ||
Without message body: GET, DELETE, … | IRI style | IRI style | - | - |
With message body: POST, PUT, … | IRI style, if any data is serialized as path components or query parameters | IRI style | Multipart style | None required |
This section defines templating rules for the {http location} property of the Binding Operation component. Templating is used by the serialization formats defined in section 6.8 Serialization Format of Instance Data, and MAY be reused by other serialization formats.
With this HTTP binding, part of the instance data for HTTP requests MAY be serialized in the HTTP request IRI, and another part MAY be serialized in the HTTP message body.
If the {style} property of the Interface Operation bound has a value of "http://www.w3.org/ns/wsdl/style/iri" as defined in 4.2 IRI Style, and if the {http location} property of the Binding Operation component is present, the value of the {http location} property component is used as a template† which is combined with the {address} property of the endpoint element to form the full IRI to be used in an HTTP request, as specified in section 6.5.2 Relationship to WSDL Component Model.
The resulting IRI MUST be mapped to an URI for use in the HTTP Request as per section 3.1 "Mapping of IRIs to URIs" of the IRI specification [IETF RFC 3987].† Additional rules for the serialization of the HTTP request IRI MAY be defined by a serialization format.
The {http location} property MAY cite local names of elements from the instance data of the message to be serialized in request IRI. Citing is performed:
either by enclosing the element name within curly braces. For example, "temperature/{town}". See Example 6-1 for additional details;
or by enclosing the element name within exclamated-curly braces, to include the element without percent-encoding. For example, "temperature/{!town}". Detailed rules follow.
The {http location} property MUST conform to the following EBNF [ISO/IEC 14977:1996] grammar, which represents the patterns for constructing the request IRI:†
httpLocation ::= charData? (( openBrace | closeBrace | template ) charData?)* charData ::= [^{}]* openBrace ::= '{{' closeBrace ::= '}}' template ::= rawTemplate | encodedTemplate rawTemplate ::= '{!' NCName '}' encodedTemplate ::= '{' NCName '}'
The request IRI is constructed as follows (ALPHA
and DIGIT
below are defined as per [IETF RFC 4234]):
The
local name in a template SHOULD match at least one element from the
instance data of
the input message.†
When there is no match, the template is replaced by an empty
string. Otherwise, the template consumes the first non-consumed
matching element from the instance data. The next occurrence of the
template consumes the next non-consumed matching element, and so on
until all templates are processed. Matching elements are consumed
in the order in which they appear in the instance data. Cited elements
(i.e. elements referenced in templates) MUST NOT carry an
xs:nil
attribute whose value is "true"†.
Each raw template (rawTemplate
production in the
grammar above) is replaced by the possibly empty single value of
the corresponding element from the instance data. No percent-encoding is
performed.
Each encoded template (encodedTemplate
production
in the grammar above) NOT preceded in the {http location}
property by a "?" character is replaced by the possibly empty
single value of the corresponding element from the instance data. Encoding
is performed as follows:
The characters in the range: "&" | ";" | "!" | "$" |
"'" | "(" | ")" | "*" | "+" | "," | "=" | ":" | "@"
SHOULD
be percent-encoded.
The other characters, EXCEPT the ones in the range: ALPHA
| DIGIT | "-" | "." | "_" | "~"
, MUST be
percent-encoded.
Each encoded template (encodedTemplate
production
in the grammar above) preceded in the {http location}
property by a "?" character is replaced by the possibly empty
single value of the corresponding element from the instance data. Encoding
is performed as follows:
The value of the {http query parameter separator} property, if present; otherwise the value of the {http query parameter separator default} property, MUST be percent-encoded.
The characters in the range: "&" | ";" | "!" | "$" |
"'" | "(" | ")" | "*" | "+" | "," | "=" | ":" | "@" | "?" |
"/"
SHOULD be percent-encoded.
The other characters, EXCEPT the ones in the range: ALPHA
| DIGIT | "-" | "." | "_" | "~"
, MUST be
percent-encoded.
Each uncited element (i.e. each element not referenced in a template) to be serialized, if any, is encoded as for an encoded template.
Percent-encoding MUST be performed using the UTF-8 representation of the character as prescribed by section 6.4 of [IETF RFC 3987].
Each double curly brace (openBrace
or
closeBrace
production in the grammar above) is
replaced by a single literal curly brace ("{" or "}" respectively).
This provides a simple escaping mechanism.
Note that the mechanism described in this section could be used to indicate the entire absolute IRI, including the scheme, host, or port, for example:
{scheme}://{host}:{port}/temperature/{town}
{!myIRI}
This serialization format is designed to allow a client or Web
service to produce an IRI based on the instance data of a message and serialize
a query string in the HTTP message body as
application/x-www-form-urlencoded
.
If this format is used then the {style} property of Interface Operation component being bound MUST contain a value of "http://www.w3.org/ns/wsdl/style/iri" as defined in 4.2 IRI Style, i.e. this serialization format may only be used to serialize the HTTP request corresponding to the initial message of an interface operation.†
For the HTTP binding defined in this section (6. WSDL HTTP Binding Extension), "application/x-www-form-urlencoded" MAY be used as a serialization format for an input message (HTTP Request), but MUST NOT be used as a serialization format for an output or fault message (HTTP Response).†
In this serialization, the rules for constructing the HTTP request IRI using elements cited in the {http location} property defined in 6.8.1 Serialization of the instance data in parts of the HTTP request IRI apply. Additional rules for constructing the HTTP request IRI follow.
If not all elements from the instance data are cited in the {http location} property, or if the property is not present on the Binding Operation component, then additional serialization rules apply.†
The remainder of the instance data is formatted as a query string as defined in 6.8.2.2.1 Construction of the query string.
If the HTTP method used for the request does not allow a message body, then this query string is serialized as parameters in the request IRI (see 6.8.2.2.3 Serialization in the request IRI), otherwise it is serialized in the message body (see 6.8.2.2.4 Serialization in the message body).
For elements of the instance data not cited in the {http location} property, a query string is constructed as follows.†
Non-nil elements with a possibly empty single value of the instance data not cited are serialized as query parameters in the order they appear in the instance data.
The
instance data
MUST NOT contain elements with an xs:nil
attribute
whose value is "true".†
Each parameter pair is separated by the value of the {http query parameter separator} property, if present, or the value of the {http query parameter separator default} property.
Uncited elements with single values (non-list) are serialized as a single name-value parameter pair. The name of the parameter is the local name of the uncited element, and the value of the parameter is the value of the uncited element.
Uncited elements with list values are serialized as one name-value parameter pair per-list value. The name of each parameter is the local name of the uncited element, and the value of each parameter is the corresponding value in the list. The order of the list values is preserved.
Replacement values falling outside the range (ALPHA
and DIGIT
below are defined as per [IETF RFC 4234]): ALPHA | DIGIT | "-" |
"." | "_" | "~" | "!" | "$" | "&" | "'" | "(" | ")" | "*" | "+"
| "," | ";" | "=" | ":" | "@"
, MUST be percent-encoded.
Percent-encoding MUST be performed using the UTF-8 representation
of the character as prescribed by section 6.4 of [IETF RFC 3987].
Example 6-1. Query string generation
The following instance data of an input message:
<data> <town>Fréjus</town> <date>2007-06-26</date> <unit>C</unit> </data>
with the following value of the {http location} property:
'temperature/{town}'
and the following value of the {http query parameter separator default} property:
'&'
will produce the following query string:
date=2007-06-26&unit=C
This serialization format adds the following property to the Binding Operation component:
{http location ignore uncited} REQUIRED. A xs:boolean. This boolean indicates whether elements not cited in the {http location} property MUST be appended to the request IRI or ignored. If the value of this property is "false", the rules defined in section 6.8.2.2.3 Serialization in the request IRI dictate how to serialize elements not cited in {http location} in the request IRI. Otherwise, those are NOT serialized in the request IRI.
When
serializing an HTTP request that does not allow an HTTP message
body, and when {http
location ignore uncited} is "true", any element NOT cited in
the {http
location} property MUST be defined in the schema as
nillable
, or have a default
value, or
appear no less frequently than specified by the
minOccurs
value. The element declaration SHOULD NOT
combine a default value with nillable
.†
The XML representation for this property is an attribute information item with the following Infoset properties:
An OPTIONAL ignoreUncited
attribute information
item with the following Infoset properties:
A [local name] of ignoreUncited
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:boolean
The mapping from the XML representation to component properties is as follows:
Property | Value |
---|---|
{http location ignore uncited} | The actual value of the
whttp:ignoreUncited attribute information
item, if present; otherwise, "false". |
If the HTTP request method used does not allow HTTP message body (e.g. "GET" and "DELETE"), and if the value of the {http location ignore uncited} property is "false", then the following rules apply.†
If the {http location} property is not present, or if it is present and its value does not contain a "?" (question mark) character, a "?" is appended to the request IRI. If it does already contain a question mark character, then the value of the {http query parameter separator} property, if present, or the value of the {http query parameter separator default} property otherwise, is appended.
Finally, the query string computed in 6.8.2.2.1 Construction of the query string is appended.
Example 6-2. Instance data serialized in an IRI
The instance data defined in Example 6-1 with the
following operation
declaration:
<operation ref='t:data' whttp:location='temperature/{town}' whttp:method='GET' />
and the following endpoint
declaration:
<endpoint name='e' binding='t:b' address='http://ws.example.com/service1/' />
will serialize the message in the HTTP request as follows:
GET http://ws.example.com/service1/temperature/Fr%C3%A9jus?date=2007-06-26&unit=C HTTP/1.1 Host: ws.example.com
If the HTTP request method used does allow an HTTP message body (e.g. "POST" and "PUT"), then the following rules apply.†
Finally, the query string computed in 6.8.2.2.1 Construction of the query string is used as the value of the HTTP message body.
The
Content-Type
HTTP header field must have the value
application/x-www-form-urlencoded
.†
Example 6-3. Instance data serialized in the HTTP Request IRI and message body
The instance data defined in Example 6-1 with the
following operation
declaration:
<operation ref='t:data' whttp:inputSerialization='application/x-www-form-urlencoded' whttp:location='temperature/{town}' whttp:method='POST' />
and the following endpoint
declaration:
<endpoint name='e' binding='t:b' address='http://ws.example.com/service1/' />
will serialize the message in the HTTP request as follow:
POST http://ws.example.com/service1/temperature/Fr%C3%A9jus HTTP/1.1 Host: ws.example.com Content-Type: application/x-www-form-urlencoded Content-Length: … date=2007-06-26&unit=C
In this serialization, for HTTP requests, the rules for constructing the HTTP request IRI defined in 6.8.1 Serialization of the instance data in parts of the HTTP request IRI apply if the {style} property of the Interface Operation bound has a value of "http://www.w3.org/ns/wsdl/style/iri" as defined in 4.2 IRI Style.
The instance data of the input, output or fault message is serialized as an XML document in the message body of the HTTP message, following the serialization defined in [Canonical XML]. Therefore, it is only suitable for HTTP requests using methods allowing message bodies (i.e., for the HTTP binding defined in this specification, input messages where the HTTP method selected has a body), and for HTTP responses (i.e. output and fault messages for the HTTP binding defined in this specification).
The
Content-Type
HTTP header MUST have the value
application/xml
[IETF
RFC 3023], or a media type
compatible with application/xml
as specified in
section 6.4.3.1 Serialization
rules for XML messages.†
Other HTTP headers MAY be used.
In this serialization, for HTTP requests, the rules for constructing the HTTP request IRI defined in 6.8.1 Serialization of the instance data in parts of the HTTP request IRI apply if the {style} property of the Interface Operation bound has a value of "http://www.w3.org/ns/wsdl/style/iri" as defined in 4.2 IRI Style.
This format is for legacy compatibility to permit the use of XForms clients with [IETF RFC 2388] servers. This serialization format may only be used when binding Interface Operation components whose {style} property has a value of "http://www.w3.org/ns/wsdl/style/multipart" as defined in 4.3 Multipart style, i.e. this serialization format may only be used to serialize the HTTP request corresponding to the initial message of an interface operation.†
Specifically, for the HTTP binding defined in this section (6. WSDL HTTP Binding Extension), "multipart/form-data" MAY be used as a serialization format for an input message (HTTP Request), but MUST NOT be used as a serialization format for an output or fault message (HTTP Response).† This format serializes the instance data in the HTTP message body, making it only suitable for HTTP requests using methods allowing message bodies.
Each element in the sequence is serialized into a part as follow:
The
Content-Disposition
header MUST have the value
form-data
, and its name
parameter is the
local name of the element.†
The
Content-Type
header MUST have the value:†
application/xml
(or a media type compatible with
application/xml
) if the element has a complex
type;
application/octet-stream
if the element is of type
xs:base64Binary
, xs:hexBinary
, or a
derived type;
text/plain
if the element has a simple type; The
charset MUST be set appropriately. UTF-8 or UTF-16 MUST be at least
supported.
If the type is xs:base64Binary
,
xs:hexBinary
, xs:anySimpleType
or a
derived type, the content of the part is the content of the
element. If the type is a complex type, the element is serialized
following the rules defined in the 6.8.3 Serialization as
application/xml .
The
instance data
MUST NOT contain elements with an xs:nil
attribute
whose value is "true".†
Example 6-4. Example of multipart/form-data
The following instance data of an input message:
<data> <town> <name>Fréjus</name> <country>France</country> </town> <date>2007-06-26</date> </data>
with the following operation
element:
<operation ref='t:data' whttp:location='temperature' whttp:method='POST' whttp:inputSerialization='multipart/form-data'/>
will serialize the message as follow:
Content-Type: multipart/form-data; boundary=AaB03x Content-Length: xxx --AaB03x Content-Disposition: form-data; name="town" Content-Type: application/xml <town> <name>Fréjus</name> <country>France</country> </town> --AaB03x Content-Disposition: form-data; name="date" Content-Type: text/plain; charset=utf-8 2007-06-26 --AaB03x--
Every Binding Message Reference and Binding Fault component MAY indicate which content encodings, as defined in section 3.5 of [IETF RFC 2616], are available for this particular message.
The HTTP binding extension provides a mechanism for indicating a default value at the Binding component and Binding Operation levels.
If no value is specified, no claim is being made.
The HTTP binding extension specification adds the following properties to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{http content encoding default} OPTIONAL. A xs:string to the Binding component. This property indicates the default content encodings available for all Binding Message Reference and Binding Fault components of this Binding.
{http content encoding default} OPTIONAL. A xs:string to the Binding Operation component. This property indicates the default content encodings available for all Binding Message Reference of this Binding Operation.
{http content encoding} OPTIONAL. A xs:string to the Binding Message Reference component. This property indicates the content encodings available for this Binding Message Reference component. If this property does not have a value, the value of the {http content encoding default} property of the parent Binding Operation component is used instead. If that itself has no value, the value from the Binding Operation component's parent Binding component is used instead.
Similarly, {http content encoding} OPTIONAL, to the Binding Fault component
These properties are not relevant when HTTP 1.0 is used.
<description> <binding name="xs:NCName" interface="xs:QName"? type="xs:anyURI" whttp:contentEncodingDefault="xs:string"? > <fault ref="xs:QName" whttp:contentEncoding="xs:string"? > </fault>* <operation location="xs:anyURI"? whttp:contentEncodingDefault="xs:string"? > <input messageLabel="xs:NCName"? whttp:contentEncoding="xs:string"? /> <output messageLabel="xs:NCName"? whttp:contentEncoding="xs:string"? /> </operation> </binding> </description>
The XML representation for specifying the content encoding is an
OPTIONAL attribute information item for the
input
, output
, and fault
element information items with the following Infoset
properties:
A [local name] of contentEncoding
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
The XML representation for specifying the default content
encoding is an OPTIONAL attribute information item for the
binding
element information item or
binding
's child operation
element
information items with the following Infoset properties:
A [local name] of contentEncodingDefault
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
See Table 6-8.
Property | Value |
---|---|
{http content encoding default} of the Binding component | The actual value of the
whttp:contentEncodingDefault attribute information
item of the binding element information
item, if present. |
{http content encoding default} of the Binding Operation component | The actual value of the
whttp:contentEncodingDefault attribute information
item of the operation element information
item, if present. |
{http content encoding} of the Binding Message Reference component | The actual value of the
whttp:contentEncoding attribute information
item of the input or output
element information item, if present. |
{http content encoding} of the Binding Fault component | The actual value of the
whttp:contentEncoding attribute information
item of the fault element information
item, if present. |
The {http cookies} property allows Binding components to indicate that HTTP cookies (as defined by [IETF RFC 2965]) are used by specific operations of the interface that this binding applies to.
The HTTP binding extension specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{http cookies} REQUIRED. A xs:boolean to the Binding component.
<description> <binding name="xs:NCName" interface="xs:QName"? type="xs:anyURI" whttp:cookies="xs:boolean"? > </binding> </description>
The XML representation for specifying the use of HTTP cookies is an OPTIONAL attribute information item with the following Infoset properties:
A [local name] of cookies
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:boolean
See Table 6-9.
Property | Value |
---|---|
{http cookies} | The actual value of the
whttp:cookies attribute information item;
otherwise, "false". A value of "true" means that the service relies
on cookies and that the client MUST understand them.† |
Every Endpoint component MAY indicate the use of an HTTP access authentication mechanism (as defined by [IETF RFC 2616]) for the endpoint described.
This binding extension specification allows the authentication scheme and realm to be specified.
The HTTP binding extension specification adds the following property to the WSDL component model (as defined in [WSDL 2.0 Core Language]):
{http authentication scheme} OPTIONAL. A xs:token with one of the values "basic" or "digest", to the Endpoint component, corresponding to the HTTP authentication scheme used. When present, this property indicates the authentication scheme in use: "basic" indicates the Basic Access Authentication scheme defined in [IETF RFC 2617], and "digest" indicates the Digest Access Authentication scheme as defined in [IETF RFC 2617].
{http authentication realm} OPTIONAL. A xs:string to the Endpoint component. It corresponds to the realm authentication parameter defined in [IETF RFC 2617]. If the {http authentication scheme} property is present, then this property MUST be present.†
<description> <service> <endpoint name="xs:NCName" binding="xs:QName" address="xs:anyURI"? > whttp:authenticationScheme="xs:token"? whttp:authenticationRealm="xs:string"? /> </endpoint> </service> </description>
The XML representation for specifying the use of HTTP access authentication is two OPTIONAL attribute information items with the following Infoset properties:
An OPTIONAL authenticationScheme
attribute
information item with the following Infoset properties:
A [local name] of authenticationScheme
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:token where the allowed token values are "basic" and "digest".
An OPTIONAL authenticationRealm
attribute
information item with the following Infoset properties:
A [local name] of authenticationRealm
A [namespace name] of "http://www.w3.org/ns/wsdl/http"
A type of xs:string
See Table 6-10.
Property | Value |
---|---|
{http authentication scheme} | The actual value of the
whttp:authenticationScheme attribute information
item, if present. |
{http authentication realm} | The actual value of the
whttp:authenticationRealm attribute information
item, if present; otherwise, if the
whttp:authenticationScheme attribute information
item is present, "" (the empty value). |
An element information item, whose namespace name is
"http://www.w3.org/ns/wsdl" and whose local part is
description
, conforms to this binding extension
specification if: the element information items and
attribute information items, whose namespace is
http://www.w3.org/ns/wsdl/http, conform to the XML Schema for that
element or attribute, as defined by this specification and,
additionally, adheres to all the constraints contained in this
specification.
This document is the work of the W3C Web Service Description Working Group.
Members of the Working Group are (at the time of writing, and by alphabetical order): Charlton Barreto (Adobe Systems, Inc), Allen Brookes (Rogue Wave Softwave), Dave Chappell (Sonic Software), Helen Chen (Agfa-Gevaert N. V.), Roberto Chinnici (Sun Microsystems), Kendall Clark (University of Maryland), Glen Daniels (Sonic Software), Paul Downey (British Telecommunications), Youenn Fablet (Canon), Ram Jeyaraman (Microsoft), Tom Jordahl (Adobe Systems), Anish Karmarkar (Oracle Corporation), Jacek Kopecky (DERI Innsbruck at the Leopold-Franzens-Universität Innsbruck, Austria), Amelia Lewis (TIBCO Software, Inc.), Philippe Le Hegaret (W3C), Michael Liddy (Education.au Ltd.), Kevin Canyang Liu (SAP AG), Jonathan Marsh (WSO2), Monica Martin (Sun Microsystems), Josephine Micallef (SAIC - Telcordia Technologies), Jeff Mischkinsky (Oracle Corporation), Dale Moberg (Cyclone Commerce), Jean-Jacques Moreau (Canon), David Orchard (BEA Systems, Inc.), Gilbert Pilz (BEA Systems, Inc.), Tony Rogers (Computer Associates), Arthur Ryman (IBM), Adi Sakala (IONA Technologies), Michael Shepherd (Xerox), Asir Vedamuthu (Microsoft Corporation), Sanjiva Weerawarana (WSO2), Ümit Yalçınalp (SAP AG), Peter Zehler (Xerox).
Previous members were: Eran Chinthaka (WSO2), Mark Nottingham (BEA Systems, Inc.), Hugo Haas (W3C), Vivek Pandey (Sun Microsystems), Bijan Parsia (University of Maryland), Lily Liu (webMethods, Inc.), Don Wright (Lexmark), Joyce Yang (Oracle Corporation), Daniel Schutzer (Citigroup), Dave Solo (Citigroup), Stefano Pogliani (Sun Microsystems), William Stumbo (Xerox), Stephen White (SeeBeyond), Barbara Zengler (DaimlerChrysler Research and Technology), Tim Finin (University of Maryland), Laurent De Teneuille (L'Echangeur), Johan Pauhlsson (L'Echangeur), Mark Jones (AT&T), Steve Lind (AT&T), Sandra Swearingen (U.S. Department of Defense, U.S. Air Force), Philippe Le Hégaret (W3C), Jim Hendler (University of Maryland), Dietmar Gaertner (Software AG), Michael Champion (Software AG), Don Mullen (TIBCO Software, Inc.), Steve Graham (Global Grid Forum), Steve Tuecke (Global Grid Forum), Michael Mahan (Nokia), Bryan Thompson (Hicks & Associates), Ingo Melzer (DaimlerChrysler Research and Technology), Sandeep Kumar (Cisco Systems), Alan Davies (SeeBeyond), Jacek Kopecky (Systinet), Mike Ballantyne (Electronic Data Systems), Mike Davoren (W. W. Grainger), Dan Kulp (IONA Technologies), Mike McHugh (W. W. Grainger), Michael Mealling (Verisign), Waqar Sadiq (Electronic Data Systems), Yaron Goland (BEA Systems, Inc.), Ümit Yalçınalp (Oracle Corporation), Peter Madziak (Agfa-Gevaert N. V.), Jeffrey Schlimmer (Microsoft Corporation), Hao He (The Thomson Corporation), Erik Ackerman (Lexmark), Jerry Thrasher (Lexmark), Prasad Yendluri (webMethods, Inc.), William Vambenepe (Hewlett-Packard Company), David Booth (W3C), Sanjiva Weerawarana (IBM), Asir Vedamuthu (webMethods, Inc.), Igor Sedukhin (Computer Associates), Martin Gudgin (Microsoft Corporation), Rebecca Bergersen (IONA Technologies), Ugo Corda (SeeBeyond).
The people who have contributed to discussions on www-ws-desc@w3.org are also gratefully acknowledged.
Table B-1 lists all the components in the WSDL 2.0 Adjuncts abstract Component Model, and all their properties.
Component | Defined Properties |
---|---|
Binding | {http content encoding default}, {http cookies}, {http method default}, {http query parameter separator default}, {soap mep default}, {soap modules}, {soap underlying protocol}, {soap version} |
Binding Fault | {http content encoding}, {http error status code}, {http headers}, {soap fault code}, {soap fault subcodes}, {soap headers}, {soap modules} |
Binding Fault Reference | {soap modules} |
Binding Message Reference | {http content encoding}, {http headers}, {soap headers}, {soap modules} |
Binding Operation | {http content encoding default}, {http fault serialization}, {http input serialization}, {http location}, {http location ignore uncited}, {http method}, {http output serialization}, {http query parameter separator}, {soap action}, {soap mep}, {soap modules} |
Endpoint | {http authentication realm}, {http authentication scheme} |
HTTP Header | {name}, {parent}, {required}, {type definition} |
Interface Operation | {rpc signature}, {safe} |
SOAP Header Block | {element declaration}, {mustUnderstand}, {parent}, {required} |
SOAP Module | {parent}, {ref}, {required} |
Property | Where Defined |
element declaration | SOAP Header Block.{element declaration} |
http authentication realm | Endpoint.{http authentication realm} |
http authentication scheme | Endpoint.{http authentication scheme} |
http content encoding | Binding Fault.{http content encoding}, Binding Message Reference.{http content encoding} |
http content encoding default | Binding.{http content encoding default}, Binding Operation.{http content encoding default} |
http cookies | Binding.{http cookies} |
http error status code | Binding Fault.{http error status code} |
http fault serialization | Binding Operation.{http fault serialization} |
http headers | Binding Fault.{http headers}, Binding Message Reference.{http headers} |
http input serialization | Binding Operation.{http input serialization} |
http location | Binding Operation.{http location} |
http location ignore uncited | Binding Operation.{http location ignore uncited} |
http method | Binding Operation.{http method} |
http method default | Binding.{http method default} |
http output serialization | Binding Operation.{http output serialization} |
http query parameter separator | Binding Operation.{http query parameter separator} |
http query parameter separator default | Binding.{http query parameter separator default} |
mustUnderstand | SOAP Header Block.{mustUnderstand} |
name | HTTP Header.{name} |
parent | HTTP Header.{parent}, SOAP Header Block.{parent}, SOAP Module.{parent} |
ref | SOAP Module.{ref} |
required | HTTP Header.{required}, SOAP Header Block.{required}, SOAP Module.{required} |
rpc signature | Interface Operation.{rpc signature} |
safe | Interface Operation.{safe} |
soap action | Binding Operation.{soap action} |
soap fault code | Binding Fault.{soap fault code} |
soap fault subcodes | Binding Fault.{soap fault subcodes} |
soap headers | Binding Fault.{soap headers}, Binding Message Reference.{soap headers} |
soap mep | Binding Operation.{soap mep} |
soap mep default | Binding.{soap mep default} |
soap modules | Binding.{soap modules}, Binding Fault.{soap modules}, Binding Fault Reference.{soap modules}, Binding Message Reference.{soap modules}, Binding Operation.{soap modules} |
soap underlying protocol | Binding.{soap underlying protocol} |
soap version | Binding.{soap version} |
type definition | HTTP Header.{type definition} |
This appendix summarizes assertions about WSDL 2.0 documents and components that are not enforced by the WSDL 2.0 schema. Each assertion is assigned a unique identifier which WSDL 2.0 processors may use to report errors.
Id | Assertion |
---|---|
OperationSafety-2028 | An OPTIONAL safe
attribute information item with the following Infoset
properties: |
WRPC-2050 | Additionally, each even-numbered item (0, 2, 4, ...) in the list MUST be of type xs:QName and each odd-numbered item (1, 3, 5, ...) in the list MUST be of the subtype of xs:token described in the previous paragraph. |
Id | Assertion |
---|---|
FaultPropagationModification-2005 | However, extensions or binding extensions MAY modify these rulesets. |
HTTPAccessAuthentication-2127 | If the {http authentication scheme} property is present, then this property MUST be present. |
HTTPBinding-2083 | When formulating the HTTP message to be transmitted, the HTTP request method used MUST be selected using one of the following: |
HTTPBinding-2084 | When formulating the HTTP message to be transmitted, content encoding for a given Binding Message Reference component is determined as follows: |
HTTPBinding-2085 | When formulating the HTTP fault message to be transmitted, content encoding for a given Binding Fault component is determined as follows: |
HTTPBinding-2086 | When formulating the HTTP message to be transmitted, the contents of the payload (i.e. the contents of the HTTP message body) MUST be what is defined by the corresponding Interface Message Reference or Interface Fault components, serialized as specified by the serialization format used. |
HTTPBinding-2087 | If the value is "#none", then the payload MUST be empty and the value of the corresponding serialization property ({http input serialization} or {http output serialization}) is ignored. |
HTTPBinding-2088 | If the Interface Message Reference component or the Interface Fault component is declared using a non-XML type system (as considered in the Types section of [WSDL 2.0 Core Language]), then additional binding rules MUST be defined in an extension specification to indicate how to map those components into the HTTP envelope. |
HTTPBinding-2089 | The serialization rules for messages whose {message content model} is either "#element" or "#any", AND the serialization rules for fault messages, are as follows: |
HTTPBindingFault-2105 | The fault definition SHOULD agree with the definition of the HTTP error codes, as specified in section 8 of [IETF RFC 3205]. |
HTTPBindingFault-2106 | An integer value of this property identifies the error Status-Code as defined by [IETF RFC 2616] that the service will use in case the fault is returned. |
HTTPBindingOperation-2093 | When formulating the HTTP Request, the HTTP Request IRI is an absolute IRI reference and is the value of the {http location} property of the Binding Operation component, resolved using the value of the {address} property of the Endpoint component (see section 5 of [IETF RFC 3986]). |
HTTPBindingOperation-2094 | The first one is transmitted using an HTTP request, and the second one is transmitted using the corresponding HTTP response. |
HTTPBindingOperation-2095 | In cases where only one single message is being sent, the message body of the HTTP response MUST be empty. |
HTTPBindingOperation-2098 | It MUST contain an IRI reference and MUST NOT include a fragment identifier component. |
HTTPBindingOperation-2100 | The value of the serialization format used for a message is a media type which MUST be covered by this range. |
HTTPBindingOperation-2101 | Wild cards (for example, "application/*") SHOULD NOT be used in this attribute information item since they may lead to interoperability problems. |
HTTPCookies-2126 | A value of "true" means that the service relies on cookies and that the client MUST understand them. |
HTTPHeader-2090 | If the {http headers} property as defined in section 6.6 Declaring HTTP Headers exists and is not empty in a Binding Message Reference or Binding Fault component, HTTP headers conforming to each HTTP Header component contained in this {http headers} property MAY be serialized as follows: |
HTTPHeader-2091 | The HTTP binding MUST NOT set an HTTP header field corresponding to the value of the {name} property already set by another mechanism, such as the HTTP stack or another feature. |
HTTPHeader-2092 | If the value of an HTTP Header component's {required} property is "true", the inclusion of this HTTP header field is REQUIRED |
HTTPHeader-2102 | A Binding Message Reference or a Binding Fault component's {http headers} property MUST NOT contain multiple HTTP Header components with the same {name} property. |
HTTPHeader-2103 | This type MUST be a simple type. |
HTTPHeader-2104 | If the value is "true", then the HTTP header field MUST be included in the message. |
HTTPQueryString-2115 | The instance data MUST NOT contain elements with
an xs:nil attribute whose value is "true". |
HTTPQueryString-2116 | When serializing an HTTP request that
does not allow an HTTP message body, and when {http
location ignore uncited} is "true", any element NOT cited in
the {http
location} property MUST be defined in the schema as
nillable , or have a default value, or
appear no less frequently than specified by the
minOccurs value. The element declaration SHOULD NOT
combine a default value with nillable . |
HTTPSerialization-2099 | The value of the {http input
serialization}, {http output
serialization} and {http fault
serialization} properties is similar to the value allowed for
the Accept HTTP header defined by the HTTP 1.1
specification, Section 14.1 (see [IETF RFC
2616]) and MUST follow the production rules defined in
that section except for the following: |
HTTPSerialization-2106 | The {http location} property MUST conform to the following EBNF [ISO/IEC 14977:1996] grammar, which represents the patterns for constructing the request IRI: |
HTTPSerialization-2107 | If the {style} property of the Interface Operation bound has a value of "http://www.w3.org/ns/wsdl/style/iri" as defined in 4.2 IRI Style, and if the {http location} property of the Binding Operation component is present, the value of the {http location} property component is used as a template |
HTTPSerialization-2108 | The resulting IRI MUST be mapped to an URI for use in the HTTP Request as per section 3.1 "Mapping of IRIs to URIs" of the IRI specification [IETF RFC 3987]. |
HTTPSerialization-2109 | The local name in a template SHOULD match at least one element from the instance data of the input message. |
HTTPSerialization-2111 | If this format is used then the {style} property of Interface Operation component being bound MUST contain a value of "http://www.w3.org/ns/wsdl/style/iri" as defined in 4.2 IRI Style, i.e. this serialization format may only be used to serialize the HTTP request corresponding to the initial message of an interface operation. |
HTTPSerialization-2112 | For the HTTP binding defined in this section (6. WSDL HTTP Binding Extension), "application/x-www-form-urlencoded" MAY be used as a serialization format for an input message (HTTP Request), but MUST NOT be used as a serialization format for an output or fault message (HTTP Response). |
HTTPSerialization-2113 | If not all elements from the instance data are cited in the {http location} property, or if the property is not present on the Binding Operation component, then additional serialization rules apply. |
HTTPSerialization-2114 | For elements of the instance data not cited in the {http location} property, a query string is constructed as follows. |
HTTPSerialization-2117 | If the HTTP request method used does not allow HTTP message body (e.g. "GET" and "DELETE"), and if the value of the {http location ignore uncited} property is "false", then the following rules apply. |
HTTPSerialization-2118 | If the HTTP request method used does allow an HTTP message body (e.g. "POST" and "PUT"), then the following rules apply. |
HTTPSerialization-2119 | The Content-Type HTTP
header field must have the value
application/x-www-form-urlencoded . |
HTTPSerialization-2120 | The Content-Type HTTP
header MUST have the value application/xml [IETF
RFC 3023], or a media type
compatible with application/xml as specified in
section 6.4.3.1 Serialization
rules for XML messages. |
HTTPSerialization-2121 | this serialization format may only be used to serialize the HTTP request corresponding to the initial message of an interface operation. |
HTTPSerialization-2122 | Specifically, for the HTTP binding defined in this section (6. WSDL HTTP Binding Extension), "multipart/form-data" MAY be used as a serialization format for an input message (HTTP Request), but MUST NOT be used as a serialization format for an output or fault message (HTTP Response). |
HTTPSerialization-2123 | The Content-Disposition
header MUST have the value form-data , and its
name parameter is the local name of the element. |
HTTPSerialization-2124 | The Content-Type header
MUST have the value: |
HTTPSerialization-2125 | The instance data MUST NOT contain elements with
an xs:nil attribute whose value is "true". |
InOnlyComposition-2012The in-only message exchange pattern consists of exactly one message as follows:InOutComposition-2015The in-out message exchange pattern consists of exactly two messages, in order, as follows:InterfaceOperation-2096202 when the MEP is "http://www.w3.org/ns/wsdl/in-only"InterfaceOperation-2097204 when the MEP is "http://www.w3.org/ns/wsdl/robust-in-only"IRIStyle-2051 | When using this style, the value of the {message content model} property of the Interface Message Reference component corresponding to the initial message of the message exchange pattern MUST be "#element". |
IRIStyle-2052 | The sequence MUST only contain elements. |
IRIStyle-2053 | The sequence MUST contain only local element children. |
IRIStyle-2054 | The localPart of the element's QName MUST be the same as the Interface Operation component's {name}. |
IRIStyle-2055 | The complex type that defines the body of the element or its children elements MUST NOT contain any attributes. |
IRIStyle-2056 | The children elements of the sequence
MUST derive from xs:simpleType , and MUST NOT be of the
type or derive from xs:QName ,
xs:NOTATION , xs:hexBinary or
xs:base64Binary . |
InOnlyComposition-2012 | The
in-only message exchange pattern consists of exactly one message
as follows: |
InOutComposition-2015 | The
in-out message
exchange pattern consists of exactly two messages, in order, as
follows: |
InterfaceOperation-2096 | 202 when the MEP is "http://www.w3.org/ns/wsdl/in-only" |
InterfaceOperation-2097 | 204 when the MEP is "http://www.w3.org/ns/wsdl/robust-in-only" |
MultipartStyle-2057 | When using this style, the value of the {message content model} property of the Interface Message Reference component corresponding to the initial message of the message exchange pattern MUST be "#element". |
MultipartStyle-2058 | The sequence MUST only contain elements. |
MultipartStyle-2059 | The sequence MUST contain only local element children. |
MultipartStyle-2060 | The attributes minOccurs
and maxOccurs for these child elements MUST have a
value 1 . |
MultipartStyle-2061 | The localPart of the element's QName MUST be the same as the Interface Operation component's {name}. |
MultipartStyle-2062 | The complex type that defines the body of the element or its children elements MUST NOT contain any attributes. |
MultipartStyle-2063 | The sequence MUST NOT contain multiple children element declared with the same local name. |
OperationSafety-2027 | However, an operation SHOULD be marked safe if it meets the criteria for a safe interaction defined in Section 3.4 of [Web Architecture]. |
RobustInOnlyComposition-2013The robust-in-only message exchange pattern consists of exactly one message as follows:RPCStyle-2029 | If the RPC style is used by an Interface Operation component then its {message exchange pattern} property MUST have the value either "http://www.w3.org/ns/wsdl/in-only" or "http://www.w3.org/ns/wsdl/in-out". |
RPCStyle-2030 | The value of the {message content model} property for the Interface Message Reference components of the {interface message references} property MUST be "#element". |
RPCStyle-2031 | The content model of input and output {element declaration} elements MUST be defined using a complex type that contains a sequence from XML Schema. |
RPCStyle-2032 | The input sequence MUST only contain elements and element wildcards. |
RPCStyle-2033 | The input sequence MUST NOT contain more than one element wildcard. |
RPCStyle-2034 | The element wildcard, if present, MUST appear after any elements. |
RPCStyle-2035 | The output sequence MUST only contain elements. |
RPCStyle-2036 | Both the input and output sequences MUST contain only local element children. |
RPCStyle-2037 | The local name of input element's QName MUST be the same as the Interface Operation component's name. |
RPCStyle-2038 | Input and output elements MUST both be in the same namespace. |
RPCStyle-2039 | The complex type that defines the body of an input or an output element MUST NOT contain any local attributes. |
RPCStyle-2040 | If elements with the same qualified name appear as children of both the input and output elements, then they MUST both be declared using the same named type. |
RPCStyle-2041 | The input or output sequence MUST NOT contain multiple children elements declared with the same name. |
RobustInOnlyComposition-2013 | The
robust-in-only message exchange pattern consists of exactly one message
as follows: |
SOAPAction-2075 | A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding Operation component. |
SOAPBinding-2065 | When formulating the SOAP envelope to be transmitted, the contents of the payload (i.e., the contents of the SOAP Body element information item of the SOAP envelope) MUST be what is defined by the corresponding Interface Message Reference component. |
SOAPBinding-2068 | If the Interface Message Reference component is declared using a non-XML type system (as considered in the Types section of [WSDL 2.0 Core Language]), then additional binding rules MUST be defined to indicate how to map those components into the SOAP envelope. |
SOAPBinding-2069 | Every SOAP binding MUST indicate what version of SOAP is in use for the operations of the interface that this binding applies to. |
SOAPBinding-2070 | Every SOAP binding MUST indicate what underlying protocol is in use. |
SOAPBindingFault-2071 | For every Interface Fault component contained in an Interface component, a mapping to a SOAP Fault MUST be described. |
SOAPBindingFault-2072 | when the value of the {soap version} is "1.2", the allowed QNames MUST be the ones defined by [SOAP 1.2 Part 1: Messaging Framework (Second Edition)], section 5.4.6 |
SOAPHTTPProperties-2064 | These properties MUST NOT be used unless the underlying protocol is HTTP. |
SOAPHTTPSelection-2082 | This default binding rule is applicable when the value of the {soap underlying protocol} property of the Bindingcomponent is "http://www.w3.org/2003/05/soap/bindings/HTTP/". If the SOAP MEP selected as specified above has the value "http://www.w3.org/2003/05/soap/mep/request-response/" then the HTTP method used is "POST". If the SOAP MEP selected has the value "http://www.w3.org/2003/05/soap/mep/soap-response/" then the HTTP method used is "GET". |
SOAPHeaderBlock-2077 | When its value is "true", the SOAP
header block MUST be decorated with a SOAP
mustUnderstand attribute information item
with a value of "true"; if so, the XML element declaration
referenced by the {element
declaration} property MUST allow this SOAP
mustUnderstand attribute information
item. |
SOAPHeaderBlock-2078 | If the value is "true", then the SOAP header block MUST be included in the message. |
SOAPHeaderBlock-2079 | The value of the element
attribute information item MUST resolve to a global
element declaration from the {element
declarations} property of the
Description component. |
SOAPHTTPProperties-2064These properties MUST NOT be used unless the underlying protocol is HTTP.SOAPHTTPSelection-2082This default binding rule is applicable when the value of the {soap underlying protocol} property of the Bindingcomponent is "http://www.w3.org/2003/05/soap/bindings/HTTP/". If the SOAP MEP selected as specified above has the value "http://www.w3.org/2003/05/soap/mep/request-response/" then the HTTP method used is "POST". If the SOAP MEP selected has the value "http://www.w3.org/2003/05/soap/mep/soap-response/" then the HTTP method used is "GET".SOAPMEP-2074 | A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding Operation component. |
SOAPMEPDefault-2073 | A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987], to the Binding component. |
SOAPMEPSelection-2080 | For a given Interface Operation component, if there is a Binding Operation component whose {interface operation} property matches the component in question and its {soap mep} property has a value, then the SOAP MEP is the value of the {soap mep} property. Otherwise, the SOAP MEP is the value of the Binding component's {soap mep default}, if any. Otherwise, the Interface Operation component's {message exchange pattern} property MUST have the value "http://www.w3.org/ns/wsdl/in-out", and the SOAP MEP is the URI "http://www.w3.org/2003/05/soap/mep/request-response/" identifying the SOAP Request-Response Message Exchange Pattern as defined in [SOAP 1.2 Part 2: Adjuncts (Second Edition)]. |
SOAPModule-2076 | A xs:anyURI, which is an absolute IRI as defined by [IETF RFC 3987]. |
WRPC-2042 | OPTIONAL, but MUST be present when the style is RPC |
WRPC-2043 | Values for the second component MUST be chosen among the following four: "#in", "#out", "#inout" "#return". |
WRPC-2044 | The value of the first component of each pair (q, t) MUST be unique within the list. |
WRPC-2045 | For each child element of the input and output messages of the operation, a pair (q, t), whose first component q is equal to the qualified name of that element, MUST be present in the list, with the caveat that elements that appear with cardinality greater than one MUST be treated as a single element. |
WRPC-2046 | For each pair (q, #in), there MUST be a child element of the input element with a name of q. There MUST NOT be a child element of the output element with the name of q. |
WRPC-2047 | For each pair (q, #out), there MUST be a child element of the output element with a name of q. There MUST NOT be a child element of the input element with the name of q. |
WRPC-2048 | For each pair (q, #inout), there MUST be a child element of the input element with a name of q. There MUST also be a child element of the output element with the name of q. |
WRPC-2049 | For each pair (q, #return), there MUST be a child element of the output element with a name of q. There MUST NOT be a child element of the input element with the name of q. |
Id | Assertion |
---|---|
HTTPSerialization-2110 | Cited elements (i.e. elements
referenced in templates) MUST NOT carry an xs:nil
attribute whose value is "true" |
SOAP12Binding-SOAPDetail-2081 | If any, the value of the SOAP "Detail" element MUST be the element information item identified by the {element declaration} property of the Interface Fault component. |
SOAPBinding-2066 | If the value is "#none", then the payload MUST be empty. |
SOAPBinding-2067 | If the value is "#element", then the payload MUST be the element information item identified by the {element declaration} property of the Interface Message Reference component. |
Id | Assertion |
---|---|
FaultDelivery-2008 | The fault message MUST be delivered to the same target node as the message it replaces, unless otherwise specified by an extension or binding extension. If there is no path to this node, the fault MUST be discarded. |
FaultDelivery-2010 | The fault message MUST be delivered to the originator of the triggering message, unless otherwise specified by an extension or binding extension. Any node MAY propagate a fault message, and MUST NOT do so more than once for each triggering message. If there is no path to the originator, the fault MUST be discarded. |
FaultPropagation-2003 | Nodes that generate faults MUST attempt to propagate the faults in accordance with the governing ruleset, but it is understood that any delivery of a network message is best effort, not guaranteed. |
FaultPropagation-2004 | When a fault is generated, the generating node MUST attempt to propagate the fault, and MUST do so in the direction and to the recipient specified by the ruleset. |
FaultReplacesMessage-2007 | When the Fault Replaces Message propagation rule is in effect, any message after the first in the pattern MAY be replaced with a fault message, which MUST have identical direction. |
InOnlyFaults-2013 | The in-only message
exchange pattern uses the rule 2.2.3 No
Faults propagation rule. |
InOutFaults-2016 | The in-out message
exchange pattern uses the rule 2.2.1 Fault Replaces Message
propagation rule. |
MEPDescriptiveness-2002 | by some prior agreement, another node and/or the service MAY send messages (to each other or to other nodes) that are not described by the pattern. |
MEPTermination-2006 | Generation of a fault, regardless of ruleset, terminates the exchange. |
MessageTriggersFault-2009 | When the Message Triggers Fault propagation rule is in effect, any message, including the first in the pattern, MAY trigger a fault message, which MUST have opposite direction. |
NoFaults-2011 | When the No Faults propagation rule is in effect, faults MUST NOT be propagated. |
NodeIdentity-2001 | A node MAY be accessible via more than one physical address or transport. |
RobustInOnlyFaults-2014 | The robust in-only message
exchange pattern uses the rule 2.2.2 Message Triggers Fault propagation
rule. |