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This specification describes a general SOAP-based protocol for enumerating a sequence of XML elements from a SOAP enabled information source.
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 document is second During the Candidate Recommendation phase, the
Last Call Working Draft Group will test
multiple specifications in a serie of tests defined in the Web
Services Enumeration (WS-Enumeration) specification; It is intended
to WSRA scenario document.
Tests results will be published and
maintained as a W3C Recommendation after review and
refinement. compiled in the
Implementation Report
There are no features declared at
risk. The Web Services Resource Access
Working Group (WSRA WG) believes to have addressed all issues
brought forth through previous Working Draft iterations, including
during the first review period ends
on <strong>20
May 2011</strong> .Changes
since Last Call period (See
are described in a diff document
.
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1 Composable
Architecture
2 Introduction
2.1 Requirements
3 Notations and Terminology
3.1 Notational
Conventions
3.2 Considerations on the
Use of Extensibility Points
3.3 Terminology
3.4 Compliance
3.5 XML
Namespaces
4 Enumeration Messages
4.1 Enumerate
4.2 Renew
4.3 GetStatus
4.4 Release
4.5 EnumerationEnd
5 Faults
5.1 ExpiresNotSupported
5.2 UnsupportedExpirationValue
5.3
UnsupportedExpirationTime 5.2 UnsupportedExpirationType
5.4 5.3 FilteringNotSupported
5.5 5.4 FilterDialectRequestedUnavailable
5.6 5.5 CannotProcessFilter
5.7 5.6 InvalidEnumerationContext
5.8 TimedOut
5.9 5.7 UnusableEPR
5.10 5.8 EndToNotSupported
5.11 5.9 EmptyFilter
5.12
MaxElementsMustBeZero 5.10 MaxItemsMustBeZero
6 Security Considerations
6.1 Creating Enumeration
Contexts
6.2 Protecting Enumeration
Contexts
6.3 Endpoint
Verification
7 WS-Enumeration Metadata
7.1 Enumeration
Assertion
8 Acknowledgements
9 References
9.1 Normative
References
9.2 Informative
References
A XML Schema
B WSDL
C Action Tables
D Change Log
By using the XML, SOAP [SOAP11] , [SOAP12] , and WSDL [WSDL11] extensibility models, the Web service specifications (WS-*) are designed to be composed with each other to provide a rich set of tools for the Web services environment. This specification specifically relies on other Web service specifications to provide secure, reliable, and/or transacted message delivery and to express Web service and client policy.
There are numerous applications for which a simple single-request/single-reply metaphor is insufficient for transferring large data sets over SOAP. Applications that do not fit into this simple paradigm include streaming, traversal, query, and enumeration.
This specification defines a simple SOAP-based protocol for enumeration that allows the data source to provide a session abstraction, called an enumeration context, to a consumer that represents a logical cursor through a sequence of data items. The consumer can then request XML element information items using this enumeration context over the span of one or more SOAP messages.
Somewhere, state MUST be maintained regarding the progress of the iteration. This state MAY be maintained between requests by the data source being enumerated or by the data consumer. WS-Enumeration allows the data source to decide, on a request-by-request basis, which party will be responsible for maintaining this state for the next request.
In its simplest form, WS-Enumeration defines an operation, Enumerate, used to establish the creation of an enumeration session or which allows a data source, in the context of a specific enumeration, to produce a sequence of XML elements in the body of a SOAP message. Each subsequent Enumerate operation returns the next N elements in the aggregate sequence.
A data source MAY provide a custom mechanism for starting a new enumeration. For instance, a data source that provides access to a SQL database can support a SELECT operation that performs a database query and uses an explicit database cursor to iterate through the returned rows. In general, however, it is simpler if all data sources support a single, standard operation to start an enumeration. This specification mandates that data sources MUST implement the Enumerate operation for starting a new enumeration of a data source. Each new enumeration results in a distinct enumeration context, each with its own logical cursor/position.
Note that different enumerations of the same data source can produce different results; this can happen even for two enumeration contexts created concurrently by a single consumer using identical Enumerate requests. The ordering or completeness of the enumeration is undefined; the returned data items represent a selection by the data source of items it wishes to present to that consumer at that time in that order, with no guarantee that every available item is returned or that the order in which items is returned has any semantic meaning whatsoever (of course, any specific data source can provide strong guarantees, if so desired). In particular, note that the very act of enumerating the contents of a data source can modify the contents of the data source; for instance, a queue might be represented as a data source such that items that are returned in a Enumerate response are removed from the queue.
This specification intends to meet the following requirements:
Support enumeration of data sources that cannot practically fit into a single SOAP message.
Support both server-side and client-side enumeration state maintenance.
Minimize additional mechanism beyond the current web service architecture.
This section specifies the notations, namespaces, and terminology used in this specification.
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 RFC 2119 [RFC 2119] .
This specification uses the following syntax to define normative outlines for messages:
The syntax appears as an XML instance, but values in italics indicate data types instead of values.
Characters are appended to elements and attributes to indicate cardinality:
"?" (0 or 1)
"*" (0 or more)
"+" (1 or more)
The character "|" is used to indicate a choice between alternatives.
The characters "(" and ")" are used to indicate that contained items are to be treated as a group with respect to cardinality or choice.
The characters "[" and "]" are used to call out references and property names.
Ellipsis (i.e. "...") indicate points of extensibility.
XML namespace prefixes (see Table 3-1 ) are used to indicate the namespace of the element being defined.
In addition to Message Information Header properties [WS-Addressing] , this specification uses the following properties to define messages:
Unordered message headers.
The value to be used for the wsa:Action IRI.
A message body.
These properties bind to a SOAP Envelope as follows: <s:Envelope>
<s:Envelope> <s:Header> [Headers] <wsa:Action>[Action]</wsa:Action> ... </s:Header> <s:Body>[Body]</s:Body> </s:Envelope>
This specification can be used in terms of XML Information Set (Infoset) [XML Infoset] , even though the specification uses XML 1.0 terminology. Valid Infoset for this specification is the one serializable in XML 1.0, hence the use of XML 1.0.
The term "generate" is used in relation to the various faults defined by this specification to imply that a fault is produced and no further processing SHOULD be performed. In these cases the fault SHOULD be transmitted. However, there might be reasons when a compliant implementation can choose not to transmit the fault - for example, security concerns - in these situations the service MAY choose not to transmit the fault.
The elements defined in this specification MAY be extended at the points indicated by their outlines and schema. Implementations MAY add child elements and/or attributes at the indicated extension points but MUST NOT contradict the semantics of the parent and/or owner, respectively. If a receiver does not recognize an extension, the receiver SHOULD ignore that extension. Senders MAY indicate the presence of an extension that has to be understood through the use of a corresponding SOAP Header with a soap:mustUnderstand attribute with the value "1".
In cases where it is either desirable or necessary for the receiver of a request that has been extended to indicate that it has recognized and accepted the semantics associated with that extension, it is RECOMMENDED that the receiver add a corresponding extension to the response message. The definition of an extension SHOULD clearly specify how the extension that appears in the response correlates with that in the corresponding request.
Extension elements and attributes MUST NOT use the Web Services Enumeration namespace URI.
The Web service that is requesting the data enumeration from the data source
A Web service that supports traversal using enumeration contexts via the Enumerate operation defined in this specification
A session context that represents a specific traversal through a logical sequence of XML element information items using the Enumerate operation defined in this specification
An implementation is not compliant with this specification if it fails to satisfy one or more of the MUST or REQUIRED level requirements defined herein. A SOAP Node MUST NOT use the XML namespace identifier for this specification (listed in 3.5 XML Namespaces ) within SOAP Envelopes unless it is compliant with this specification.
Normative text within this specification takes precedence over the XML Schema and WSDL descriptions, which in turn take precedence over outlines, which in turn take precedence over examples.
All messages defined by this specification MUST conform to the WS-Addressing specifications and be sent to a Web service that is addressable by an EPR (see [WS-Addressing] ).
Unless otherwise noted, all IRIs are absolute IRIs and IRI comparison MUST be performed according to [RFC 3987] section 5.3.1.
For any message defined by this specification, any OPTIONAL elements or attributes in the message MAY be used by senders of the message; however receivers of those messages MUST support those OPTIONAL elements and attributes, unless other behavior is explicitly defined by this specification.
Implementations are expected to support both UTF-8 and UTF-16 as described in XML 1.0.
Implementations of this specification MUST conform to the corrected version of WSDL as defined by the 'WSDL Correction' sections of WS-I Basic Profile 1.2 [BP12] and WS-I Basic Profile 2.0 [BP20] .
The XML namespace URI that MUST be used by implementations of this specification is:
http://www.w3.org/2010/08/ws-enuhttp://www.w3.org/2011/03/ws-enu
Table 3-1 lists XML namespaces that are used in this specification. The choice of any namespace prefix is arbitrary and not semantically significant.
Prefix | XML Namespace | Specification(s) |
---|---|---|
wsen | This specification | |
s | http://www.w3.org/2003/05/soap-envelope | SOAP 1.2 [SOAP12] |
s11 | http://schemas.xmlsoap.org/soap/envelope/ | SOAP 1.1 [SOAP11] |
wsa | http://www.w3.org/2005/08/addressing | WS-Addressing [WS-Addressing] |
wsp | http://www.w3.org/ns/ws-policy | WS-Policy [WS-Policy] |
xs | http://www.w3.org/2001/XMLSchema | XML Schema [XMLSchema - Part 1] , [XMLSchema - Part 2] |
wsdl | http://schemas.xmlsoap.org/wsdl | WSDL/1.1 [WSDL11] |
The working group intends to update the value of the Web Services Enumeration namespace URI each time a new version of this document is published until such time that the document reaches Candidate Recommendation status. Once it has reached Candidate Recommendation status, the working group intends to maintain the value of the Web Services Enumeration namespace URI that was assigned in the Candidate Recommendation unless significant changes are made that impact the implementation or break post-CR implementations of the specification. Also see http://www.w3.org/2001/tag/doc/namespaceState.html and http://www.w3.org/2005/07/13-nsuri .
Enumeration contexts represent a specific traversal through a sequence of XML information items. A Enumerate operation can be used to establish an enumeration context from a data source. A subsequent Enumerate operation is used to fetch information items from a data source according to a specific enumeration context. A Release operation is used to tell a data source that the consumer is abandoning an enumeration context before it has completed the enumeration.
Enumeration contexts are represented as XML data that is opaque to the consumer. Initially, the consumer gets an enumeration context from the data source by means of a Enumerate operation. The consumer then passes that XML data back to the data source in subsequent Enumerate requests. Optionally, the data source MAY return an updated enumeration context in the Enumerate response; when present, this new enumeration context MUST replace the old one on the consumer, and MUST be passed to the data source in all future requests until and unless the data source again returns an updated enumeration context.
Callers MAY issue a Release operation against a valid
enumeration context at any time, which causes the enumeration
context to become invalid and allows the data source to free up any
resources it might have allocated to the enumeration. Issuing a
Release operation prior to reaching the end of the sequence of
elements items is explicitly allowed; however, no further
operations MUST be issued after a Release.
An enumeration context can become invalid for any reason including:
Enumeration completed (i.e. an EndOfSequence has been returned in a Enumerate response)
Enumeration released
Enumeration expired
Enumeration ended (i.e. ended via an
EnumerationEnd message from data source) Enumeration context
replaced in the response to another Enumerate request
Enumeration ended (i.e. as indicated via an EnumerationEnd message from data source)
In addition, As the last item indicates, the data source MAY
invalidate an enumeration context at any time, as necessary. time.
When processing a Enumerate, Renew, GetStatus or Release operation, a data source MUST generate an wsen:InvalidEnumerationContext fault if it determines that the enumeration context supplied by the consumer in the request is invalid.
Note that the data source might not be able to determine that an enumeration context is invalid, especially if all of the state associated with the enumeration is kept in the enumeration context and refreshed on every EnumerateResponse or RenewResponse.
Once a consumer determines that an enumeration context is invalid, it MUST NOT issue any more WS-Enumeration request messages referencing that enumeration context.
The Enumerate operation is initiated by sending a Enumerate request message to the data source. This operation MUST be supported by compliant data sources. The Enumerate request message MUST be of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/Enumeratehttp://www.w3.org/2011/03/ws-enu/Enumerate [Body] <wsen:Enumerate ...> ( <wsen:NewContext ...> <wsen:EndTo>endpoint-reference</wsen:EndTo> ? <wsen:Expires BestEffort="xs:boolean"? ...> (xs:dateTime | xs:duration) </wsen:Expires> ? <wsen:Filter Dialect="xs:anyURI"?> xs:any </wsen:Filter> ? xs:any* </wsen:NewContext> | <wsen:EnumerationContext ...>...</wsen:EnumerationContext> ) <wsen:MaxTime>xs:duration</wsen:MaxTime> ?<wsen:MaxElements></wsen:MaxElements> ?<wsen:MaxItems>xs:long</wsen:MaxItems> ? <wsen:MaxCharacters>xs:long</wsen:MaxCharacters> ? xs:any* </wsen:Enumerate>
The following describes additional, normative constraints on the outline listed above:
This OPTIONAL element contains the information necessary to create a new Enumeration. Note, a Enumerate request MUST have either a wsen:EnumerationContext element or a wsen:NewContext element.
This OPTIONAL element denotes where to send an EnumerationEnd message if the enumeration is terminated unexpectedly (see 4.5 EnumerationEnd ). If present, this element MUST be of type wsa:EndpointReferenceType. Default is to not send this message. The endpoint to which the EndTo EPR refers MUST support the EnumerationEndPortType portType. Unless some mechanism is used to indicate otherwise, the messages sent to this endpoint MUST use the same version of SOAP that was used for the Enumerate message.
If the data source does not support the use of the EndTo EPR, the data source MUST generate a wsen:EndToNotSupported fault.
If included within the Enumerate request message, the wsen:EndTo SHOULD have some cursory validity checking performed before the Enumerate response is returned. While not all errors can be detected prior to sending a message to that EPR, some obvious ones can be detected. For example, an unsupported transport specified within the wsa:Address IRI. Detecting these errors during Enumerate processing will lessen the chances of the consumer creating an unusable enumeration. If this check is performed and a problem is detected then the data source MUST generate a wsen:UnusableEPR fault rather than returning the EnumerateResponse message.
This OPTIONAL element can be used by the consumer to indicate
the expiration time of the requested enumeration. If this element is not present, the implied default
expiration time is indefinite. A value of PT0S indicates a
request for an indefinite infinite expiration time. time (i.e. an
enumeration that never expires).
If the data source does not support
The absence of the wsen:Expires element
being present in a Enumerate request message
then a wsen:ExpiresNotSupported fault MUST indicates that the expiration value will be
generated. chosen
by the data source. This value is communicated via the
wsen:GrantedExpires element (see below).
If the wsen:Expires element is present and the data source is
not able to grant an expiration time that matches the specified
value then it MUST generate a wsen:UnsupporedExpirationValue wsen:UnsupportedExpirationValue fault.
The value of the wsen:Expires element MAY be either a duration (xs:duration) or a specific time (xs:dateTime). Data sources MUST accept duration values and MAY accept specific time values. Upon receiving a request that contains specific time values, a data source that does not support such value types MUST fail the request and generate a wsen:UnsupportedExpirationType fault.
If a consumer chooses to use specific time values in a request, it is RECOMMENDED that these values include a time zone component. Specific time values that lack a time zone MUST be interpreted in the local time zone of the receiver.
This OPTIONAL attribute, when present with a value of 'true', indicates that the data source MUST grant an expiration time that is its best effort to match the requested expiration time. Default value of this attribute is "false" in which case the data source MUST grant the requested expiration time or fault the enumeration request as defined above.
This OPTIONAL element contains a Boolean predicate in some
dialect (see [ [Body]/wsen:Enumerate/wsen:NewContext/wsen:Filter/@Dialect
] ) that all elements items of interest MUST satisfy. The resultant
enumeration context MUST NOT return elements items for
which this predicate expression evaluates to the value false. If
this element is absent, then the implied value is the expression
true(), indicating that no filtering is desired.
If the data source does not support filtering, the request MUST fail, and the data source MUST generate a wsen:FilteringNotSupported fault.
If the data source supports filtering but cannot honor the requested filter dialect, the request MUST fail, and the data source MUST generate a wsen:FilterDialectRequestedUnavailable fault.
If the data source supports filtering and the requested dialect but cannot process the requested filter content, the request MUST fail, and the data source MUST generate a wsen:CannotProcessFilter fault.
It is possible for a Enumerate request to contain a filter that will never evaluate to true for the lifetime of the enumeration. If a data source detects this condition during the processing of the Enumerate request it MUST generate a wsen:EmptyFilter fault in response to the Enumerate request message. If, after the EnumerateResponse message has been sent, the data source determines that the filter will never evaluate to true for the lifetime of the enumeration, or if there is an error within the filter expression, the enumeration MUST be terminated. In this case if an EndTo was provided, then a EnumerationEnd message MUST be sent with a Reason value of "http://www.w3.org/2011/03/ws-evt/SourceCancelling".
Implied value is "http://www.w3.org/2010/08/ws-enu/Dialects/XPath10".
"http://www.w3.org/2011/03/ws-enu/Dialects/XPath10".
If filtering is supported, then support for the XPath 1.0 dialect (described below) is RECOMMENDED. Alternate filter dialects can be defined. Such dialect definitions MUST include sufficient information for proper application. For example, it would need to define the context (which data) over which the filter operates.
Value of [Body] /wsen:Enumerate/wsen:NewContext/wsen:Filter is an XPath [XPath1.0] predicate expression (PredicateExpr); the context of the expression is:
Context Node: any XML element that could be returned as a direct child of the wsen:Items element.
Context Position: 1.
Context Size: 1.
Variable Bindings: None.
Function Libraries: Core Function Library [XPath1.0] .
Namespace Declarations: The [in-scope namespaces] property [XML Infoset] of [Body] /wsen:Enumerate/wsen:NewContext/wsen:Filter.
The namespace bindings are evaluated against any namespace
declarations that are in scope where the XPath expression appears
within the SOAP message. Note that the evaluation of expressions
that rely on such context dependent bindings is fragile in the face
of transformations that alter namespace prefixes. Such
transformations might occur during the transmission, processing,
storage, or retrieval of a request. Clients that wish to isolate
expressions from the effects of any changes to the namespace
prefixes in the containing SOAP message are advised to construct
expressions in a manner that avoids the use of namespace prefixes.
For example, use an expression such as "/a[namespace-uri()='http://www.example.com']"
"/*[local-name()='a' and
namespace-uri()='http://www.example.com']" not "/ns1:a".
This filter dialect is the same as the XPath 1.0 filter dialect except that it uses [XPath2.0] instead of XPath 1.0 as the expression language.
This OPTIONAL element contains the XML data that represents the current enumeration context. Note, a Enumerate request MUST have either a wsen:EnumerationContext element or a wsen:NewContext element.
This OPTIONAL element (of type xs:duration) indicates the
maximum amount of time the consumer is willing to allow the data
source to assemble the Enumerate response. When this element is
absent, the data source is NOT REQUIRED to limit the amount of time
it takes to assemble the Enumerate response. The data source MUST
recognize the wsen:MaxTime element and return
a wsen:TimedOut fault if element.
If no elements items are available prior to the request message's
deadline. However, this fault MUST NOT cause
the enumeration context to become invalid and deadline, the consumer can
issue additional Enumerate requests using this enumeration context
after receiving this fault. data source
MUST return an EnumerationResponse message that contains a
wsen:Items element with no child elements present.
This is useful with data sources that accumulate elements items over
time and package them into a single Enumerate response.
This OPTIONAL element (of type xs:long) indicates the number of
items (child elements of wsen:Items in the Enumerate response) the
consumer is willing to accept. When this element is absent, its
implied value is 1. Implementations MUST NOT return more than this
number of elements items in the Enumerate response message.
Implementations MAY return fewer than this number based on either
the wsen:MaxTime timeout, the wsen:MaxCharacters size limit, or
implementation-specific constraints.
Note that a value of zero MAY, along with a wsen:NewContext element, be used to create a new enumeration without retrieving any of the data items.
If the data source does not support returning items in response
to a Enumerate request that also created a new enumeration, and the
Enumerate request did not include a wsen:MaxElemenets wsen:MaxItems with a value of zero, then the data
source MUST generate a wsen:MaxElementsMustBeZero wsen:MaxItemsMustBeZero fault.
This OPTIONAL element (of type xs:long) indicates the maximum
size of the returned elements,
items, in Unicode characters, that the
consumer is willing to accept. When this element is absent, the
data source is NOT REQUIRED to limit the number of characters in
the Enumerate response. Implementations MUST NOT return a Enumerate
response message whose wsen:Items element, and all of its children,
is larger than MaxCharacters. Implementations MAY return a smaller
message based on the wsen:MaxTime timeout, the wsen:MaxElements wsen:MaxItems limit, or implementation-specific
constraints.
Even if a Enumerate request contains a MaxCharacters element, the consumer MUST be prepared to receive a Enumerate response that contains more data characters than specified, as XML canonicalization or alternate XML serialization algorithms can change the size of the representation.
It can happen that When compiling the list of items to return, if the
next item the data source would
return to cause the consumer is
wsen:Items array to be larger than
MaxCharacters. In this case, the
data source MAY skip the item, or MAY return
an abbreviated representation of MaxCharacters value and the item that fits inside MaxCharacters. If
wsen:Items array is not empty then the
data source skips the item, it MAY
MUST return it as
part of the response to a future
Enumerate request with a larger value current list of MaxCharacters, or it MAY omit it entirely from the
enumeration. If the oversized item is items back to the last
client, saving that next item
to be returned for this enumeration context and a subsequent enumerate request. If, however, the
wsen:Items array is empty the data source skips it, it MUST include skip the
wsen:EndOfSequence item in the Enumerate response and invalidate the enumeration context. See the
discussion MUST NOT return it as
part of wsen:EndOfSequence below.
the enumeration.
Other components of the outline above are not further constrained by this specification.
Upon successful processing of a Enumerate request message, a data source MUST return a Enumerate response message of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/EnumerateResponsehttp://www.w3.org/2011/03/ws-enu/EnumerateResponse [Body] <wsen:EnumerateResponse ...> <wsen:GrantedExpires ...> (xs:dateTime | xs:duration)</wsen:GrantedExpires> ?</wsen:GrantedExpires> <wsen:EnumerationContext ...>...</wsen:EnumerationContext> ?<wsen:Items> <xs:any> enumeration-specific element </xs:any> +<wsen:Items Reason="xs:anyURI"?> <xs:any> enumeration-specific element </xs:any> * </wsen:Items> ? <wsen:EndOfSequence/> ? xs:any* </wsen:EnumerateResponse>
The following describes additional, normative constraints on the outline listed above:
This element is the expiration time assigned by the data source. The expiration time MAY be either a specific time or a duration but MUST be of the same type as the wsen:Expires element of the corresponding request. If the corresponding request did not contain a wsen:Expires element, this element MUST be a duration (xs:duration).
When expressed as a duration, the wsen:GrantedExpires wse:GrantedExpires element designates a the amount of time
interval that began at remaining on this enumeration as measured from the
moment the enumeration is created.
request message was processed. Although
this specification cannot dictate when, during the processing of a
Enumerate request, an enumeration
request message a enumeration's remaining
time is created, determined, the data source MUST start measure the
expiration interval duration from a time that is at or before
it transmits the wsen:EnumerateResponse transmission of the response message.
If this element does not appear, then the
enumeration will not expire. That is, the enumeration has an
indefinite lifetime. Likewise, a A
wsen:GrantedExpires value of PT0S indicates that the
enumeration will not never expire. It will terminate when the end of
the enumeration is reached, or if the consumer sends a Release
request, or by the data source at any time for reasons such as
connection termination, resource constraints, or system
shut-down.
Note that a wsen:GrantedExpires element MUST only appear in a EnumerateResponse message if the corresponding Enumerate request message included a wsen:NewContext element.
The OPTIONAL EnumerationContext element, if present, contains a XML representation of the enumeration context. The consumer MUST replace the prior representation, if any, with the contents of this element.
The OPTIONAL Items element contains one zero or more
enumeration-specific elements, one for each element item being
returned.
Implied value is "http://www.w3.org/2011/03/ws-enu/TimedOut".
The OPTIONAL Reason attribute indicates the reason that the wsen:Items element has no child elements. Alternate Reason values can be defined. The Reason attribute MUST NOT be present if the wsen:Items element has one or more child elements.
This value MUST be used if no items are available prior to the Enumeration request message's deadline.
This OPTIONAL element indicates that no more elements items are
available from this enumeration and the enumeration context sent by
the consumer in the request becomes invalid.
Note that at least one of wsen:Items or wsen:EndOfSequence MUST appear. It is possible for both to appear if items are returned and the sequence is exhausted. Similarly, wsen:EnumerationContext and wsen:EndOfSequence MUST NOT both appear; neither can appear, or one without the other, but not both in the same EnumerateResponse.
Example 4-1 lists a sample Enumerate request that establishes a new context.
(01) <s:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope" (02) xmlns:wsa="http://www.w3.org/2005/08/addressing"(03) xmlns:wsen="http://www.w3.org/2010/08/ws-enu">(03) xmlns:wsen="http://www.w3.org/2011/03/ws-enu"> (04) <s:Header> (05) <wsa:Action>(06) http://www.w3.org/2010/08/ws-enu/Enumerate(06) http://www.w3.org/2011/03/ws-enu/Enumerate (07) </wsa:Action> (08) <wsa:MessageID>(09) uuid:e7c5726b-de29-4313-b4d4-b3425b200839(09) urn:uuid:e7c5726b-de29-4313-b4d4-b3425b200839 (10) </wsa:MessageID> (11) <wsa:To>http://www.example.com/relayAgent/enum19</wsa:To> (12) <wsa:ReplyTo> (13) <wsa:Address> (14) http://www.w3.org/2005/08/addressing/anonymous (15) </wsa:Address> (16) </wsa:ReplyTo> (17) </s:Header> (18) <s:Body> (19) <wsen:Enumerate> (20) <wsen:NewContext> (21) <wsen:Expires> PT10M </wsen:Expires> (22) </wsen:NewContext>(23) <wsen:MaxElements> 0 </wsen:MaxElements>(23) <wsen:MaxItems> 0 </wsen:MaxItems> (24) </wsen:Enumerate> (25) </s:Body> (26) </s:Envelope>
Lines (05-07) in Example 4-1 indicate
this message is a Enumerate request and that the data source is
expected to respond with a Enumerate response message. The
wsen:Expires element on line (21) indicates that the consumer would
like an enumeration context that will be good for 10 minutes. No
wsen:Filter element is present, so the resultant enumeration
context is expected to return all available elements. items. Line
(23) indicates that the Enumerate response is not to include any
items from the enumeration - this operation is just estalishing the
enumeration context.
Example 4-2 lists a response to the request in Example 4-1 .
(01) <s:Envelope xmlns:S='http://www.w3.org/2003/05/soap-envelope'(02) xmlns:wsen='http://www.w3.org/2010/08/ws-enu'(02) xmlns:wsen='http://www.w3.org/2011/03/ws-enu' (03) xmlns:wsa='http://www.w3.org/2005/08/addressing'> (04) <s:Header> (05) <wsa:Action>(06) http://www.w3.org/2010/08/ws-enu/EnumerateResponse(06) http://www.w3.org/2011/03/ws-enu/EnumerateResponse (07) </wsa:Action> (08) <wsa:RelatesTo>(09) uuid:e7c5726b-de29-4313-b4d4-b3425b200839(09) urn:uuid:e7c5726b-de29-4313-b4d4-b3425b200839 (10) </wsa:RelatesTo> (11) <wsa:To> (12) http://www.w3.org/2005/08/addressing/anonymous (13) <wsa:To> (14) </s:Header> (15) <s:Body> (16) <wsen:EnumerateResponse> (17) <wsen:GrantedExpires> PT10M </wsen:GrantedExpires> (18) <wsen:EnumerationContext> (19) 123 (20) </wsen:EnumerationContext> (21) </wsen:EnumerateResponse> (22) </s:Body> (23) </s:Envelope>
Lines (05-07) in Example 4-2 indicate this message is a Enumerate response message. Line (17) indicates that the data source has created an enumeration context with a lifetime of 10 minutes. Lines (18-20) are the XML representation of the enumeration context that supports the Enumerate operation defined below.
Example 4-3 lists a Enumerate request that uses the enumeration context established in the previous example.
(01) <s:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope" (02) xmlns:wsa="http://www.w3.org/2005/08/addressing"(03) xmlns:wsen="http://www.w3.org/2010/08/ws-enu">(03) xmlns:wsen="http://www.w3.org/2011/03/ws-enu"> (04) <s:Header> (05) <wsa:Action>(06) http://www.w3.org/2010/08/ws-enu/Enumerate(06) http://www.w3.org/2011/03/ws-enu/Enumerate (07) </wsa:Action> (08) <wsa:MessageID>(09) uuid:e7c5726b-de29-4313-b4d4-b3425b200839(09) urn:uuid:e7c5726b-de29-4313-b4d4-b3425b200839 (10) </wsa:MessageID> (11) <wsa:To>http://www.example.com/relayAgent</wsa:To> (12) <wsa:ReplyTo> (13) <wsa:Address> (14) http://www.w3.org/2005/08/addressing/anonymous (15) </wsa:Address> (16) </wsa:ReplyTo> (17) </s:Header> (18) <s:Body> (19) <wsen:Enumerate> (20) <wsen:EnumerationContext>123</wsen:EnumerationContext> (21) <wsen:MaxTime>P30S</wsen:MaxTime>(22) <wsen:MaxElements>10</wsen:MaxElements>(22) <wsen:MaxItems>10</wsen:MaxItems> (23) </wsen:Enumerate> (24) </s:Body> (25) </s:Envelope>
Lines (05-07) in Example 4-3
indicate this message is a Enumerate request and that the data
source is expected to respond with a Enumerate response message.
Line (21) indicates that the response message SHOULD be generated
no more than 30 seconds after receipt of the Enumerate request
message. Line (22) indicates that no more than 10 elements items can be
returned in the body of the Enumerate response message.
Example 4-4 lists a response to the request in Example 4-3 .
(01) <s:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope"(02) xmlns:wsen="http://www.w3.org/2010/08/ws-enu"(02) xmlns:wsen="http://www.w3.org/2011/03/ws-enu" (03) xmlns:wsa="http://www.w3.org/2005/08/addressing"> (04) <s:Header> (05) <wsa:Action>(06) http://www.w3.org/2010/08/ws-enu/EnumerateResponse(06) http://www.w3.org/2011/03/ws-enu/EnumerateResponse (07) </wsa:Action> (08) <wsa:RelatesTo>(09) uuid:e7c5726b-de29-4313-b4d4-b3425b200839(09) urn:uuid:e7c5726b-de29-4313-b4d4-b3425b200839 (10) </wsa:RelatesTo> (11) <wsa:To> (12) http://www.w3.org/2005/08/addressing/anonymous (13) <wsa:To> (14) </s:Header> (15) <s:Body> (16) <wsen:EnumerateResponse> (17) <wsen:Items xmlns:xx="http://fabrikam123.example.com/schema/log"> (18) <xx:LogEntry id="1">System booted</xx:LogEntry> (19) <xx:LogEntry id="2">AppX started</xx:LogEntry> (20) <xx:LogEntry id="3">John Smith logged on</xx:LogEntry> (21) <xx:LogEntry id="4">AppY started</xx:LogEntry> (22) <xx:LogEntry id="5">AppX crashed</xx:LogEntry> (23) </wsen:Items> (24) <wsen:EndOfSequence/> (25) </wsen:EnumerateResponse> (26) </s:Body> (27) </s:Envelope>
Lines (05-07) in Example 4-4
indicate this message is a Enumerate response message. Lines
(18-22) are the five elements
items returned by this Enumerate
request. The presence of a wsen:EndOfSequence element (line (24))
indicates that no more elements
items are available and that the
enumeration context is now invalid.
To update, or renew, the expiration for an enumeration, a Renew request message is sent to the data source. This operation MUST be supported by compliant data sources. The Renew request message MUST be of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/Renewhttp://www.w3.org/2011/03/ws-enu/Renew [Body] <wsen:Renew ...> <wsen:EnumerationContext ...>...</wsen:EnumerationContext> <wsen:Expires BestEffort="xs:boolean"? ...> (xs:dateTime | xs:duration) </wsen:Expires> ? xs:any* </wsen:Renew>
Components of the outline listed above are additionally constrained as for a request to create an enumeration (see 4.1 Enumerate ) with the following addition(s):
This REQUIRED element contains the XML data that represents the current enumeration context.
Other components of the outline above are not further constrained by this specification.
If the data source accepts a request to renew an enumeration, it MUST reply with a response of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/RenewResponsehttp://www.w3.org/2011/03/ws-enu/RenewResponse [Body] <wsen:RenewResponse ...> <wsen:GrantedExpires ...> (xs:dateTime | xs:duration) </wsen:GrantedExpires> ? <wsen:EnumerationContext ...>...</wsen:EnumerationContext> ? xs:any* </wsen:RenewResponse>
Components of the outline listed above are constrained as for a response to a Enumerate request (see 4.1 Enumerate ) with the following addition:
This element is OPTIONAL in this response.
If the data source chooses not to renew this enumeration, the request MUST fail, and the data source MUST generate a SOAP 1.1 Server fault or a SOAP 1.2 Receiver fault indicating that the renewal was not accepted.
Other components of the outline above are not further constrained by this specification.
To get the status of an enumeration, the consumer sends a GetStatus request message to the data source. This operation MUST be supported by compliant data sources. The message MUST be of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/GetStatushttp://www.w3.org/2011/03/ws-enu/GetStatus [Body] <wsen:GetStatus ...><wsen:EnumerationContext ...>...</wsen:EnumerationContext> ?<wsen:EnumerationContext ...>...</wsen:EnumerationContext> xs:any* </wsen:GetStatus>
Components of the outline listed above are additionally constrained as for a request to renew an enumeration (see 4.2 Renew ). Other components of the outline above are not further constrained by this specification.
If the enumeration is valid the data source MUST reply with a response of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/GetStatusResponsehttp://www.w3.org/2011/03/ws-enu/GetStatusResponse [Body] <wsen:GetStatusResponse ...> <wsen:GrantedExpires ...> (xs:dateTime | xs:duration) </wsen:GrantedExpires> ? xs:any* </wsen:GetStatusResponse>
Components of the outline listed above are constrained as for a response to a renew request (see 4.2 Renew ). Other components of the outline above are not further constrained by this specification.
This operation is safe; it will not result in any side effect imputable to the consumer. This means that in case of an underlying protocol error that might get unnoticed, resending the same request can be done automatically.
The Release operation is initiated by sending a Release request message to the data source. This operation MUST be supported by compliant data sources. The Release request message MUST be of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/Releasehttp://www.w3.org/2011/03/ws-enu/Release [Body] <wsen:Release ...> <wsen:EnumerationContext ...>...</wsen:EnumerationContext> xs:any* </wsen:Release>
The following describes additional, normative constraints on the outline listed above:
This REQUIRED element contains the XML data that represents the enumeration context being abandoned.
Other components of the outline above are not further constrained by this specification.
Upon successful processing of a Release request message, a data source MUST return a Release response message of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/ReleaseResponsehttp://www.w3.org/2011/03/ws-enu/ReleaseResponse [Body] <wsen:ReleaseResponse ...> xs:any* </wsen:ReleaseResponse>
Example 4-5 lists a Release request.
(01) <s:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope" (02) xmlns:wsa="http://www.w3.org/2005/08/addressing"(03) xmlns:wsen="http://www.w3.org/2010/08/ws-enu">(03) xmlns:wsen="http://www.w3.org/2011/03/ws-enu"> (04) <s:Header> (05) <wsa:Action>(06) http://www.w3.org/2010/08/ws-enu/Release(06) http://www.w3.org/2011/03/ws-enu/Release (07) </wsa:Action> (08) <wsa:MessageID>(09) uuid:e7c5726b-de29-4313-b4d4-b3425b200839(09) urn:uuid:e7c5726b-de29-4313-b4d4-b3425b200839 (10) </wsa:MessageID> (11) <wsa:To>http://www.example.com/relayAgent</wsa:To> (12) <wsa:ReplyTo> (13) <wsa:Address> (14) http://www.w3.org/2005/08/addressing/anonymous (15) </wsa:Address> (16) </wsa:ReplyTo> (17) </s:Header> (18) <s:Body> (19) <wsen:Release> (20) <wsen:EnumerationContext>123</wsen:EnumerationContext> (21) </wsen:Release> (22) </s:Body> (23) </s:Envelope>
Lines (05-07) in Example 4-5 indicate this message is a Release request. Line (20) identifies the enumeration context to be released.
Example 4-6 lists a response to the request in Example 4-5 .
(01) <s:Envelope xmlns:S="http://www.w3.org/2003/05/soap-envelope"(02) xmlns:wsen="http://www.w3.org/2010/08/ws-enu"(02) xmlns:wsen="http://www.w3.org/2011/03/ws-enu" (03) xmlns:wsa="http://www.w3.org/2005/08/addressing"> (04) <s:Header> (05) <wsa:Action>(06) http://www.w3.org/2010/08/ws-enu/ReleaseResponse(06) http://www.w3.org/2011/03/ws-enu/ReleaseResponse (07) </wsa:Action> (08) <wsa:RelatesTo>(09) uuid:e7c5726b-de29-4313-b4d4-b3425b200839(09) urn:uuid:e7c5726b-de29-4313-b4d4-b3425b200839 (10) </wsa:RelatesTo> (11) <wsa:To> (12) http://www.w3.org/2005/08/addressing/anonymous (13) <wsa:To> (14) </s:Header> (15) <s:Body> (16) <wsen:ReleaseResponse/> (17) </s:Body> (18) </s:Envelope>
Lines (05-07) in Example 4-6 indicate this message is a Release response message.
If the data source terminates an enumeration unexpectedly, and it supports the use of the EndTo EPR, and the EndTo EPR was present in the Enumerate message for that enumeration (see 4.1 Enumerate ), the EnumerationEnd message MUST be sent to the endpoint reference indicated by that EPR.
Note, a enumeration context expiring as expected is not considered to be an unexpected termination, therefore a EnumerationEnd message MUST NOT be sent in this case.
The message MUST be of the following form:
[Action]http://www.w3.org/2010/08/ws-enu/EnumerationEndhttp://www.w3.org/2011/03/ws-enu/EnumerationEnd [Body] <wsen:EnumerationEnd ...> <wsen:Code>( http://www.w3.org/2010/08/ws-enu/SourceShuttingDown | http://www.w3.org/2010/08/ws-enu/SourceCancelling |( http://www.w3.org/2011/03/ws-enu/SourceShuttingDown | http://www.w3.org/2011/03/ws-enu/SourceCancelling | xs:anyURI ) </wsen:Code> <wsen:Reason xml:lang="language identifier" > xs:string </wsen:Reason> ? xs:any* </wsen:EnumerationEnd>
The following describes additional, normative constraints on the outline listed above:
This value MUST be used if the data source terminated the enumeration because the source is being shut down in a controlled manner; that is, if the data source is being shut down but has the opportunity to send an EnumerationEnd message before it exits.
This value MUST be used if the data source terminated the enumeration for some other reason before it expired.
This OPTIONAL element contains text, in the language specified by the @xml:lang attribute, describing the reason for the unexpected enumeration termination.
Other components of the outline above are not further constrained by this specification.
All fault messages defined in this specification MUST be sent according to the rules and usage described in [WS-Addressing 1.0 SOAP Binding] Section 6 for encoding SOAP 1.1 and SOAP 1.2 faults. The [Action] property below MUST be used for faults defined in this specification:
http://www.w3.org/2010/08/ws-enu/faulthttp://www.w3.org/2011/03/ws-enu/fault
The definitions of faults in this section use the following properties:
[Code] The fault code.
[Subcode] The fault subcode.
[Reason] The English language reason element.
[Detail] The detail element. If absent, no detail element is
defined for the fault.
For SOAP 1.2, the [Code] property MUST be
either "Sender" or "Receiver". These properties are serialized into
text XML as follows: <s12:Envelope>
The properties above bind to a SOAP 1.2 fault as follows:
<s12:Envelope> <s12:Header> <wsa:Action> [Action] </wsa:Action> <!-- Headers elided for brevity. --> </s12:Header> <s12:Body> <s12:Fault> <s12:Code> <s12:Value>[Code]</s12:Value> <s12:Subcode> <s12:Value>[Subcode]</s12:Value> </s12:Subcode> </s12:Code> <s12:Reason> <s12:Text xml:lang="en">[Reason]</s12:Text> </s12:Reason> <s12:Detail> [Detail] ... </s12:Detail> </s12:Fault> </s12:Body> </s12:Envelope>
The properties bind to a SOAP 1.1 fault as follows:
<s11:Envelope> <s12:Header> <wsa:Action> [Action] </wsa:Action> <!-- Headers elided for brevity. --> </s12:Header> <s11:Body> <s11:Fault> <faultcode> [Subcode] </faultcode> <faultstring xml:lang="en"> [Reason] </faultstring> <detail> [Detail] ... </detail> </s11:Fault> </s11:Body> </s11:Envelope>
This fault MUST be generated when a request specifies an expiration that is not within the min/max range.
[Code] | s12:Sender |
[Subcode] | wsen:UnsupportedExpirationValue |
[Reason] | The expiration time requested is not within the min/max range. |
[Detail] |
This fault MUST be generated when the
Enumerate a request specifies an
expiration time that is specified
and the data source is only capable of accepting expiration durations; for
instance, if the data source does not a
duration. have access to absolute
time.
[Code] | s12:Sender |
[Subcode] | |
[Reason] | |
[Detail] |
This fault MUST generated when the data source does not support filters.
[Code] | s12:Sender |
[Subcode] | wsen:FilteringNotSupported |
[Reason] | Filtering not supported. |
[Detail] |
This fault MUST be generated when the data source does not support the requested filter dialect.
[Code] | s12:Sender |
[Subcode] | wsen:FilterDialectRequestedUnavailable |
[Reason] | |
[Detail] | <wsen:SupportedDialect> + OPTIONAL; repeating; one per filter dialect supported by the receiver |
This fault MUST be generated when the data source can not process the filter content.
[Code] | s12:Sender |
[Subcode] | wsen:CannotProcessFilter |
[Reason] | Cannot filter as requested. |
[Detail] |
This fault MUST be generated when the enumeration context is invalid.
[Code] | s12:Receiver |
[Subcode] | wsen:InvalidEnumerationContext |
[Reason] | Text explaining why the enumeration context is no longer valid, or "Invalid enumeration context" if no additional information is available. |
[Detail] |
This fault MUST be generated when a data source detects that the wsen:EndTo EPR is unusable.
[Code] | s12:Sender |
[Subcode] | wsen:UnusableEPR |
[Reason] | The wsen:EndTo EPR is unusable. |
[Detail] | Details as to why the EPR is unusable. |
This fault MUST be generated by a data source that does not support /wsen:Enumerate/wsen:NewContext/wsen:EndTo semantics, in response to a Enumerate request that contains a wsen:EndTo element.
[Code] | s12:Sender |
[Subcode] | wsen:EndToNotSupported |
[Reason] | wsen:EndTo semantics is not supported. |
[Detail] | none |
This fault MUST be generated when a data source detects a Enumerate request containing a filter that, for whatever reason, will never evaluate to true.
[Code] | s12:Sender |
[Subcode] | wsen:EmptyFilter |
[Reason] | The wsen:Filter would result in zero data items. |
[Detail] | The wsen:Filter value. |
This fault MUST be generated by a data source that does not
support returning items in a Enumerate response and the Enumerate
request did not include a wsen:MaxElements wsen:MaxItems with a value of zero.
[Code] | s12:Sender |
[Subcode] | |
[Reason] | |
[Detail] | none |
This specification considers two sets of security requirements, those of the applications that use the WS-Enumeration protocol and those of the protocol itself.
This specification makes no assumptions about the security requirements of the applications that use WS-Enumeration. However, once those requirements have been satisfied within a given operational context, the addition of WS-Enumeration to this operational context can not undermine the fulfillment of those requirements; the use of WS-Enumeration SHOULD NOT create additional attack vectors within an otherwise secure system.
The material below is not a "check list". There are many other security concerns that need to be considered when implementing or using this protocol. Implementers and users of this protocol are urged to perform a security analysis to determine their particular threat profile and the appropriate responses to those threats.
An enumeration represents a logical cursor through a sequence of data items. If the information in these items is sensitive, it is advisable to for Data Sources to authenticate and authorize Consumers as part of the processing of the Enumerate request. Note that a Data Source might authorize retrievals on a per-item basis after the enumeration has been created. This might be necessary in cases where the sensitivity of the information requested might not be known at the time the Enumerate request is processed or varies during the lifetime of the enumeration.
Once created, it is advisable to treat Enumeration Contexts as protected resources. Renew, GetStatus, and Release requests ought to be authenticated and authorized (for example, the identity of the requester ought to be checked against the identity of the entity that performed the original Enumerate request). Likewise EnumerationEnd messages ought to be authenticated and authorized (for example, the identity of the sender ought to be checked against the identity the entity that sent the original EnumerateResponse message). Note that authentication and authorization policies (i.e. the rules that define which entities are allowed to perform which requests and the mechanisms by which the identities of these entities are discovered and verified) are particular to individual deployments.
Enumeration Contexts are also sensitive because of the way they are used to maintain or reference the state of active Enumerations. Attackers able to snoop or guess the value of an Enumeration Context could use this information to Enumerate data items in that Enumeration. To defend against the misuse of snooped/guessed Enumeration Contexts, Data Sources are advised to authenticate and authorize clients sending Enumerate requests.
Data Source implementations that perform validity checks on the EndTo EPR used in the Enumerate request are advised that such checks can be misused to obtain information about a target network. For example, suppose a Data Source implementation verifies the address of EndTo EPRs by attempting to create a connection to this EPR's address and faulting the Enumerate request if a connection cannot be created. When deployed within a DMZ, such a Data Source could be exploited by a malicious Consumer to probe for other, non-visible hosts by guessing target addresses and using them in Enumerate requests. Note that, even if the returned fault does not provide connection information, the time the Data Source spends processing the Enumerate request might betray the existence or non-existence of a host at the target address.
Implementations that perform validity checks on the EndTo EPR are advised to provide a means to disable such checks in environments where these types of attacks are an issue.
An endpoint MAY indicate its support of WS-Enumeration, or its features, by including the WS-Enumeration DataSource Policy assertion within its WSDL. By doing so the endpoint is indicating that the corresponding WS-Enumeration operations are supported by that endpoint even though they are implicit and do not explicitly appear in its WSDL (i.e. the WS-Enumeration operations do not appear in the WSDL that MAY be retrievable by using a WS-MetadataExchange GetWSDL to that endpoint).
The WS-Enumeration WSDL containing the operations indicated by the Enumeration Assertion MAY be exposed by including the WSDL as a child of the DataSource Policy assertion or by including a reference to it using the mex:Location or mex:Reference element (as described in WS-MetadataExchange [WS-MetadataExchange] Section 9).
This WS-Enumeration WSDL can be annotated to indicate any endpoint specific metadata that might be needed by clients interacting with the WS-Enumeration operations. For example, the WSDL MAY have policy assertions that indicate a particular security mechanism used to protect the WS-Enumeration operations supported by this endpoint.
Services indicate support for the WS-Enumeration's definition of a data source through the use of the Web Services Policy - Framework [WS-Policy] and Web Services Policy - Attachment [WS-Policy Attachment] specifications.
This specification defines a policy assertion (wsen:DataSource). The normative outline of this assertion is:
<wsen:DataSource ...><wsen:FilterDialect URI="" ...> * </wsen:FilterDialect> * <wsen:ExpiresSupported .../> ? <wsen:DateTimeSupported .../> ? <wsen:MaxExpires ...> </wsen:MaxExpires> ? <wsen:MaxTime ...> </wsen:MaxTime> ? <wsen:MaxElements ...> </wsen:MaxElements> ? <wsen:MaxCharacters ...> </wsen:MaxCharacters> ? <wsen:EndToSupported .../> ? <wsen:ItemsOnNewContextSupported .../> ? *<wsen:FilterDialect URI="xs:anyURI" ...> xs:any* </wsen:FilterDialect> * <wsen:DateTimeSupported .../> ? <wsen:Expires min="xs:duration"? max="xs:duration"? .../> ? <wsen:MaxTime ...> xs:duration </wsen:MaxTime> ? <wsen:MaxItems ...> xs:long </wsen:MaxItems> ? <wsen:MaxCharacters ...> xs:long </wsen:MaxCharacters> ? <wsen:EndToSupported .../> ? <wsen:ItemsOnNewContextSupported .../> ? xs:any* </wsen:DataSource>
The following describes additional, normative constraints on the outline listed above:
This policy assertion has Endpoint Policy Subject. When present in a policy alternative, it indicates that the subject is a data source and the WS-Enumeration protocol MUST be used when communicating with this endpoint.
When present, this OPTIONAL parameter indicates support for the specified Filter Dialect IRI.
This extensibility point allows for additional FilterDialect specific metadata to be included within the policy assertion. Any metadata that appears is scoped to the use of the specified FilterDialect URI.
When present, this OPTIONAL parameter indicates support for expiration time expressed as specific time (rather than duration).
When present, this OPTIONAL parameter indicates the minimum and maximum lifetime
of enumerations enumeration expiration
times that this endpoint will support. When the OPTIONAL 'min' attribute is absent then the
data source MUST not impose a lower bound on the accepted Expires
values. The implied default is
indefinite. Note: a value of "PT0S"
indicates that this endpoint supports enumerations with an
for the OPTIONAL 'max' attribute is
infinite lifetime. (or PT0S). In all cases, the 'min' value MUST be less
than or equal to the 'max' value.
When present, this OPTIONAL parameter indicates the maximum
MaxTime value supported by this endpoint. The implied default is
indefinite. infinite. Note: a value of "PT0S" indicates that
this endpoint supports any duration value.
When present, this OPTIONAL parameter indicates the maximum
MaxElements MaxItems value supported by this endpoint. The
value specified MUST be greater than zero.
When present, this OPTIONAL parameter indicates the maximum MaxCharacters value supported by this endpoint. The value specified MUST be greater than zero.
When present, this OPTIONAL parameter indicates support for the /wsen:Enumerate/wsen:NewContext/wsen:EndTo semantics. That is, when a Enumerate request contains a wsen:EndTo element, a EnumerationEnd message will be sent to the EPR contained in the wsen:EndTo element, if the enumeration terminates unexpectedly.
When present, this OPTIONAL parameter indicates support for the
Enumerate operation creating a new enumeration context and
returning an initial set of items in the Enumerate response
message. When a data source does not support this feature, all
consumers MUST include a wsen:MaxElements wsen:MaxItems with a value of zero in Enumerate
requests that create new enumeration contexts.
This extensibility point allows for additional WS-Enumeration specific metadata to be included within the policy assertion - e.g. WS-Enumeration WSDL, or nested policy assertions related to the WS-Enumeration message exchanges. Any metadata that appears is scoped to the operations and features of the WS-Enumeration specification.
This specification has been developed as a result of joint work with many individuals and teams, including: Alessio Soldano (Red Hat), Ashok Malhotra (Oracle Corp.), Asir Vedamuthu (Microsoft Corp.), Bob Freund (Hitachi, Ltd.), Bob Natale (MITRE Corp.), David Snelling (Fujitsu, Ltd.), Doug Davis (IBM), Fred Maciel (Hitachi, Ltd.), Geoff Bullen (Microsoft Corp.), Gilbert Pilz (Oracle Corp.), Greg Carpenter (Microsoft Corp.), Jeff Mischkinsky (Oracle Corp.), Katy Warr (IBM), Li Li (Avaya Communications), Mark Little (Red Hat), Martin Chapman (Oracle Corp.), Paul Fremantle (WSO2), Paul Nolan (IBM), Prasad Yendluri (Software AG), Ram Jeyaraman (Microsoft Corp.), Sreedhara Narayanaswamy (CA), Sumeet Vij (Software AG), Tom Rutt (Fujitsu, Ltd.), Vikas Varma (Software AG), Wu Chou (Avaya Communications), Yves Lafon (W3C/ERCIM).
A normative copy of the XML Schema [XMLSchema - Part 1] , [XMLSchema - Part 2] description for this specification can be retrieved from the following address:
http://www.w3.org/2010/08/ws-enu/enumeration.xsdhttp://www.w3.org/2011/03/ws-enu/enumeration.xsd
A non-normative copy of the XML schema is listed below for convenience.
<xs:schematargetNamespace='http://www.w3.org/2010/08/ws-enu' xmlns:tns='http://www.w3.org/2010/08/ws-enu'targetNamespace='http://www.w3.org/2011/03/ws-enu' xmlns:tns='http://www.w3.org/2011/03/ws-enu' xmlns:wsa='http://www.w3.org/2005/08/addressing' xmlns:xs='http://www.w3.org/2001/XMLSchema' elementFormDefault='qualified' blockDefault='#all'> <xs:import namespace='http://www.w3.org/XML/1998/namespace' schemaLocation='http://www.w3.org/2001/xml.xsd' /> <xs:import namespace='http://www.w3.org/2005/08/addressing' schemaLocation='http://www.w3.org/2005/08/addressing/ws-addr.xsd' /> <!-- Types and global elements --> <xs:complexType name='FilterType' mixed='true'> <xs:sequence> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:attribute name='Dialect' type='xs:anyURI' use='optional'default='http://www.w3.org/2010/08/ws-enu/Dialects/XPath10'/>default='http://www.w3.org/2011/03/ws-enu/Dialects/XPath10'/> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> <xs:simpleType name='PositiveDurationType'> <xs:restriction base='xs:duration'> <xs:minExclusive value='P0Y0M0DT0H0M0S' /> </xs:restriction> </xs:simpleType> <xs:simpleType name='NonNegativeDurationType'> <xs:restriction base='xs:duration'> <xs:minInclusive value='P0Y0M0DT0H0M0S' /> </xs:restriction> </xs:simpleType> <xs:simpleType name='DurationDateTime'> <xs:union memberTypes='xs:dateTime tns:NonNegativeDurationType' /> </xs:simpleType> <xs:complexType name='MiniExpirationType'> <xs:simpleContent> <xs:extension base='tns:DurationDateTime'> <xs:anyAttribute namespace='##other' processContents='lax'/> </xs:extension> </xs:simpleContent> </xs:complexType> <xs:complexType name='ExpirationType'> <xs:simpleContent> <xs:extension base='tns:MiniExpirationType'> <xs:attribute name='BestEffort' type='xs:boolean' use='optional'/> <xs:anyAttribute namespace='##other' processContents='lax'/> </xs:extension> </xs:simpleContent> </xs:complexType> <xs:complexType name='EnumerationContextType'> <xs:complexContent mixed='true'> <xs:restriction base='xs:anyType'> <xs:sequence> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:complexType name='ItemListType'> <xs:sequence maxOccurs='unbounded'> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:attribute name='Reason' type='xs:anyURI' use='optional'/> </xs:complexType> <xs:complexType name='LanguageSpecificStringType'> <xs:simpleContent> <xs:extension base='xs:string'> <xs:attribute ref='xml:lang' /> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:extension> </xs:simpleContent> </xs:complexType> <!-- Used for a fault response --> <xs:element name='SupportedDialect' type='xs:anyURI' /> <!-- Enumerate request --> <xs:element name='Enumerate'> <xs:complexType> <xs:sequence> <xs:choice> <xs:element name='NewContext'> <xs:complexType> <xs:sequence> <xs:element name='EndTo' type='wsa:EndpointReferenceType' minOccurs='0' /> <xs:element name='Expires' type='tns:ExpirationType' minOccurs='0' /> <xs:element name='Filter' type='tns:FilterType' minOccurs='0' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <xs:element name='EnumerationContext' type='tns:EnumerationContextType' /> </xs:choice> <xs:element name='MaxTime' type='tns:PositiveDurationType' minOccurs='0' /><xs:element name='MaxElements' type='xs:positiveInteger'<xs:element name='MaxItems' type='xs:positiveInteger' minOccurs='0' /> <xs:element name='MaxCharacters' type='xs:positiveInteger' minOccurs='0' /> <xs:element name='EndToSupported' type='tns:Empty' minOccurs='0' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- Enumerate response --> <xs:element name='EnumerateResponse'> <xs:complexType> <xs:sequence><xs:element name='GrantedExpires' type='tns:MiniExpirationType' minOccurs='0' /><xs:element name='GrantedExpires' type='tns:MiniExpirationType' /> <xs:element name='EnumerationContext' type='tns:EnumerationContextType' minOccurs='0' /> <xs:element name='Items' type='tns:ItemListType' minOccurs='0' /> <xs:element name='EndOfSequence' minOccurs='0' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- Renew request --> <xs:element name='Renew'> <xs:complexType> <xs:sequence> <xs:element name='EnumerationContext' type='tns:EnumerationContextType' /> <xs:element name='Expires' type='tns:ExpirationType' minOccurs='0' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- Renew response --> <xs:element name='RenewResponse'> <xs:complexType> <xs:sequence><xs:element name='GrantedExpires' type='tns:MiniExpirationType' minOccurs='0' /><xs:element name='GrantedExpires' type='tns:MiniExpirationType' /> <xs:element name='EnumerationContext' type='tns:EnumerationContextType' minOccurs='0' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- GetStatus request --> <xs:element name='GetStatus'> <xs:complexType> <xs:sequence> <xs:element name='EnumerationContext' type='tns:EnumerationContextType' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- GetStatus response --> <xs:element name='GetStatusResponse'> <xs:complexType> <xs:sequence><xs:element name='GrantedExpires' type='tns:MiniExpirationType' minOccurs='0' /><xs:element name='GrantedExpires' type='tns:MiniExpirationType' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- Release request --> <xs:element name='Release'> <xs:complexType> <xs:sequence> <xs:element name='EnumerationContext' type='tns:EnumerationContextType' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- Release response --> <xs:element name='ReleaseResponse'> <xs:complexType> <xs:sequence> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <!-- EnumerationEnd message --> <xs:element name='EnumerationEnd'> <xs:complexType> <xs:sequence> <xs:element name='Code' type='tns:OpenEnumerationEndCodeType' /> <xs:element name='Reason' type='tns:LanguageSpecificStringType' minOccurs='0' maxOccurs='unbounded' /> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' /> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> <xs:simpleType name='EnumerationEndCodeType'> <xs:restriction base='xs:anyURI'> <xs:enumeration value='http://www.w3.org/2010/08/ws-enu/SourceShuttingDown' />'http://www.w3.org/2011/03/ws-enu/SourceShuttingDown' /> <xs:enumeration value='http://www.w3.org/2010/08/ws-enu/SourceCancelling' />'http://www.w3.org/2011/03/ws-enu/SourceCancelling' /> </xs:restriction> </xs:simpleType> <xs:simpleType name='OpenEnumerationEndCodeType'> <xs:union memberTypes='tns:EnumerationEndCodeType xs:anyURI' /> </xs:simpleType> <!-- Policy --> <xs:complexType name='Duration'> <xs:simpleContent> <xs:extension base='tns:NonNegativeDurationType'> <xs:anyAttribute namespace='##other'/> </xs:extension> </xs:simpleContent> </xs:complexType> <xs:complexType name='URI'> <xs:simpleContent> <xs:extension base='xs:anyURI'> <xs:anyAttribute namespace='##other'/> </xs:extension> </xs:simpleContent> </xs:complexType> <xs:complexType name='Long'> <xs:simpleContent> <xs:extension base='xs:long'> <xs:anyAttribute namespace='##other'/> </xs:extension> </xs:simpleContent> </xs:complexType> <xs:complexType name='Empty'> <xs:sequence/> <xs:anyAttribute namespace='##other' processContents='lax'/> </xs:complexType> <xs:element name='DataSource'> <xs:complexType> <xs:sequence> <xs:element name='FilterDialect' minOccurs='0' maxOccurs='unbounded'> <xs:complexType> <xs:sequence> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='0'/> </xs:sequence> <xs:attribute name='URI' type='xs:anyURI' use='required' /> <xs:anyAttribute namespace="##other" processContents='lax'/> </xs:complexType> </xs:element><xs:element name='ExpiresSupported' type='tns:Empty' minOccurs='0'/><xs:element name='DateTimeSupported' type='tns:Empty' minOccurs='0'/><xs:element name='MaxExpires' type='tns:Duration' minOccurs='0'/><xs:element name='Expires' minOccurs='0'> <xs:complexType> <xs:attribute name='min' type='xs:duration' use='optional'/> <xs:attribute name='max' type='xs:duration' use='optional'/> </xs:complexType> </xs:element name='Expires'> <xs:element name='MaxTime' type='tns:Duration' minOccurs='0'/><xs:element name='MaxElements' type='tns:Long' minOccurs='0'/><xs:element name='MaxItems' type='tns:Long' minOccurs='0'/> <xs:element name='MaxCharacters' type='tns:Long' minOccurs='0'/> <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded'/> </xs:sequence> <xs:anyAttribute namespace='##other' processContents='lax' /> </xs:complexType> </xs:element> </xs:schema>
A normative copy of the WSDL [WSDL11] description for this specification can be retrieved from the following address:
http://www.w3.org/2010/08/ws-enu/enumeration.wsdlhttp://www.w3.org/2011/03/ws-enu/enumeration.wsdl
A non-normative copy of the WSDL description is listed below for convenience.
<wsdl:definitionstargetNamespace='http://www.w3.org/2010/08/ws-enu'targetNamespace='http://www.w3.org/2011/03/ws-enu' xmlns:wsa='http://www.w3.org/2005/08/addressing' xmlns:wsam='http://www.w3.org/2007/05/addressing/metadata' xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/'xmlns:wsen='http://www.w3.org/2010/08/ws-enu'xmlns:wsen='http://www.w3.org/2011/03/ws-enu' xmlns:xs='http://www.w3.org/2001/XMLSchema' > <wsdl:types> <xs:schema> <xs:importnamespace='http://www.w3.org/2010/08/ws-enu' schemaLocation='http://www.w3.org/2010/08/ws-enu/enumeration.xsd' />namespace='http://www.w3.org/2011/03/ws-enu' schemaLocation='http://www.w3.org/2011/03/ws-enu/enumeration.xsd' /> </xs:schema> </wsdl:types> <wsdl:message name='EnumerateMessage'> <wsdl:part name='Body' element='wsen:Enumerate' /> </wsdl:message> <wsdl:message name='EnumerateResponseMessage'> <wsdl:part name='Body' element='wsen:EnumerateResponse' /> </wsdl:message> <wsdl:message name='RenewMessage' > <wsdl:part name='Body' element='wsen:Renew' /> </wsdl:message> <wsdl:message name='RenewResponseMessage' > <wsdl:part name='Body' element='wsen:RenewResponse' /> </wsdl:message> <wsdl:message name='GetStatusMessage' > <wsdl:part name='Body' element='wsen:GetStatus' /> </wsdl:message> <wsdl:message name='GetStatusResponseMessage' > <wsdl:part name='Body' element='wsen:GetStatusResponse' /> </wsdl:message> <wsdl:message name='ReleaseMessage'> <wsdl:part name='Body' element='wsen:Release' /> </wsdl:message> <wsdl:message name='ReleaseResponseMessage'> <wsdl:part name='Body' element='wsen:ReleaseResponse' /> </wsdl:message> <wsdl:message name='EnumerationEndMessage' > <wsdl:part name='Body' element='wsen:EnumerationEnd' /> </wsdl:message> <wsdl:portType name='DataSource'> <wsdl:operation name='EnumerateOp'> <wsdl:input message='wsen:EnumerateMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/Enumerate' />wsam:Action='http://www.w3.org/2011/03/ws-enu/Enumerate' /> <wsdl:output message='wsen:EnumerateResponseMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/EnumerateResponse' />wsam:Action='http://www.w3.org/2011/03/ws-enu/EnumerateResponse' /> </wsdl:operation> <wsdl:operation name='RenewOp' > <wsdl:input message='wsen:RenewMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/Renew' />wsam:Action='http://www.w3.org/2011/03/ws-enu/Renew' /> <wsdl:output message='wsen:RenewResponseMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/RenewResponse' />wsam:Action='http://www.w3.org/2011/03/ws-enu/RenewResponse' /> </wsdl:operation> <wsdl:operation name='GetStatusOp' > <wsdl:input message='wsen:GetStatusMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/GetStatus' />wsam:Action='http://www.w3.org/2011/03/ws-enu/GetStatus' /> <wsdl:output message='wsen:GetStatusResponseMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/GetStatusResponse' />wsam:Action='http://www.w3.org/2011/03/ws-enu/GetStatusResponse' /> </wsdl:operation> <wsdl:operation name='ReleaseOp'> <wsdl:input message='wsen:ReleaseMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/Release' />wsam:Action='http://www.w3.org/2011/03/ws-enu/Release' /> <wsdl:output message='wsen:ReleaseResponseMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/ReleaseResponse' />wsam:Action='http://www.w3.org/2011/03/ws-enu/ReleaseResponse' /> </wsdl:operation> </wsdl:portType> <wsdl:portType name='EnumerationEndPortType'> <wsdl:operation name='EnumerationEndOp' > <wsdl:input message='wsen:EnumerationEndMessage'wsam:Action='http://www.w3.org/2010/08/ws-enu/EnumerationEnd' />wsam:Action='http://www.w3.org/2011/03/ws-enu/EnumerationEnd' /> </wsdl:operation> </wsdl:portType> </wsdl:definitions>
The purpose of the action tables is to illustrate, via a separate means from the normative text, the allowable order and interactions of various messages and activities. The action tables are not intended to constrain implementations beyond those necessary to insure this ordering.
Actions are represented as columns.
Triggers (messages, application actions, timer events) are represented as rows. Triggers are annotated by their type; "[app]" - represents an application action (e.g. a user selecting a "Enumerate" menu item); "[msg]" - represents an incoming, WS-Enumeration defined, message; "[timer]" - represents an internal timer event.
Each cell describes the appropriate action for a given state and trigger. Where the action is dependent upon other factors than the state and trigger (e.g. the value of a fault message), the activity is described in pseudo-code. The section of the specification that describes these activities is displayed in curly brackets (e.g. "{4.2}").
Empty box indicates that the spec is silent for the specified trigger/action pair.
Trigger | Action | ||
Trigger has no context | Trigger has valid context | Trigger has invalid context | |
Enumerate Request |
Create new context |
If (end of sequence) { |
Generate |
Renew Request |
Update expiration
timer |
Generate |
|
GetStatus Request |
Send GetStatusResponse |
Generate |
|
Release Request |
Send
wse:ReleaseResponse |
Generate |
|
Expiration |
Invalidate context |
||
Shutdown/Error |
if (EndTo engaged) |
Trigger | Action |
Expiration |
Invalidate context |
EnumerationEnd |
Invalidate context |
Data | Author | Description |
---|---|---|
2009/03/04 | DD | Added resolution of issue 6391 |
2009/03/04 | DD | Added resolution of issue 6519 |
2009/03/11 | DD | Added change log |
2009/03/11 | DD | Added resolution of issue 6641 |
2009/03/11 | DD | Added resolution of issue 6425 |
2009/03/16 | KW | Added resolution of issue 6587 |
2009/03/17 | DD | Added resolution of issue 6399 |
2009/03/23 | DD | Added resolution of issue 6666 |
2009/03/24 | DD | Added resolution of issue 6648 |
2009/04/07 | DD | Added resolution of issue 6499 |
2009/04/07 | DD | Added resolution of issue 6726 |
2009/04/22 | KW | Added resolution of issue 6739 |
2009/04/28 | DD | Added resolution of issue 6787 |
2009/05/12 | DD | Added resolution of issue 6860 |
2009/05/13 | DD | Added resolution of issue 6696 |
2009/05/21 | DD | Added resolution of issue 6674 |
2009/05/26 | KW | Added resolution of issue 6920 |
2009/05/27 | DD | Added resolution of issue 6906 |
2009/06/04 | DD | Added resolution of issue 6916 |
2009/06/11 | DD | Added resolution of issue 6956 |
2009/08/05 | DD | Added resolution of issue 7159 |
2009/08/06 | DD | Added resolution of issue 7192 |
2009/08/18 | DD | Added resolution of issue 7206 |
2009/08/18 | DD | Added resolution of issue 7193 |
2009/08/25 | DD | Added resolution of issue 7365 |
2009/08/25 | DD | Added resolution of issue 7270 |
2009/08/25 | DD | Added resolution of issue 7235 |
2009/09/01 | DD | Added resolution of issue 6427 |
2009/09/01 | DD | Added resolution of issue 6701 |
2009/09/01 | DD | Added resolution of issue 7430 |
2009/09/02 | DD | Added resolution of issue 6694 |
2009/09/02 | DD | Added resolution of issue 6533 |
2009/09/23 | DD | Added resolution of issue 6568 |
2009/09/30 | DD | Added resolution of issue 7716 |
2009/10/02 | DD | Added resolution of issue 7426 |
2009/10/05 | DD | Added resolution of issues 6403 , 6721 |
2009/10/06 | DD | Added resolution of issue 7587 |
2009/10/13 | DD | Added resolution of issue 7827 |
2009/10/20 | DD | Added resolution of issue 7068 |
2009/10/20 | DD | Added resolution of issue 7811 |
2009/10/20 | DD | Added resolution of issue 7207 |
2009/10/20 | DD | Added resolution of issues 7586 , 7588 , 7828 |
2009/11/05 | DD | Added resolution of issue 8075 |
2009/11/05 | DD | Added resolution of issue 8069 |
2009/11/05 | DD | Added resolution of issue 8076 |
2009/11/05 | DD | Added resolution of issue 7912 |
2009/11/05 | DD | Added resolution of issues 8070 , 8071 , 8072 |
2009/11/06 | DD | Added resolution of issue 8124 |
2009/11/06 | DD | Added resolution of issue 8158 |
2009/11/06 | DD | Added resolution of issue 8124 |
2009/11/17 | DD | Added resolution of issue 8280 |
2009/12/01 | DD | Added resolution of issue 8201 |
2009/12/08 | DD | Added resolution of issue 8305 |
2009/12/08 | DD | Added resolution of issue |
2009/12/08 | DD | Added resolution of issue 8161 |
2010/01/19 | DD | Added resolution of issue 8286 |
2010/01/19 | DD | Added resolution of issue 8283 |
2010/01/26 | DD | Added resolution of issue 8275 |
2010/01/28 | DD | Added resolution of issue 8157 |
2010/01/28 | DD | Added resolution of issue 8196 |
2010/02/05 | DD | Added resolution of issue 6436 |
2010/02/08 | DD | Added resolution of issue 8901 |
2010/02/09 | DD | Added resolution of issue 8160 |
2010/02/09 | DD | Added resolution of issue 8304 |
2010/02/23 | DD | Added resolution of issue 8306 |
2010/03/09 | DD | Added resolution of issue 6463 ,8031 ,8198 |
2010/03/16 | DD | Added resolution of issue 8886 |
2010/03/30 | DD | Added resolution of issue 9095 |
2010/03/30 | DD | Added resolution of issue 9266 |
2010/04/20 | DD | Added resolution of issue 9543 |
2010/05/04 | DD | Added resolution of issue 9588 |
2010/05/04 | DD | Added resolution of issue 9087 |
2010/05/11 | DD | Added resolution of issue 9568 |
2010/05/11 | DD | Added resolution of issue 9699 |
2010/05/12 | DD | Added resolution of issue 9717 |
2010/05/13 | DD | Added resolution of issue 9702 |
2010/06/29 | DD | Added resolution of issue 9609 |
2010/08/17 | DD | Added resolution of issue 10339 |
2010/11/16 | DD | Added resolution of issue 10960 |
2010/11/19 | DD | Added resolution of issue 8284 |
2011/01/11 | DD | Added resolution of issue 11696 |
2011/02/01 | DD | Added resolution of issue 11882 |
2011/02/07 | DD | Added resolution of issue 11899 |
2011/02/15 | DD | Added resolution of issue 12051 |
2011/02/15 | DD | Added resolution of issue 11894 |
2011/02/15 | DD | Added resolution of issue |