Appendix C: The Xlinks Schema (Normative)

At the time that GML 2.0 was finalised, the World Wide Web Consortium (W3C) had not produced a normative schema to support its XLink recommendation. As an interim measure, this schema has been produced by the editors of GML 2.0 to provide the XLink attributes for general use; pending the provision of a definitive schema by the W3C, this schema shall be considered a normative component of GML 2.0.

 <?xml version="1.0" encoding="UTF-8"?> <!-- File: xlinks.xsd  --> <schema targetNamespace="http://www.w3.org/1999/xlink"         xmlns="http://www.w3.org/2000/10/XMLSchema"         xmlns:xlink="http://www.w3.org/1999/xlink"         version="2.01">   <annotation>     <appinfo>xlinks.xsd v2.01 2001-02</appinfo>     <documentation xml:lang="en">       This schema provides the XLink attributes for general use.   </documentation>   </annotation>   <!-- ==============================================================        global declarations   =============================================================== -->   <!-- locator attribute -->   <attribute name="href" type="uriReference" />   <!-- semantic attributes -->   <attribute name="role" type="uriReference" />   <attribute name="arcrole" type="uriReference" />   <attribute name="title" type="string" />   <!-- behavior attributes -->   <attribute name="show">     <annotation>       <documentation>         The 'show' attribute is used to communicate the desired         presentation of the ending resource on traversal from the         starting resource; it's value should be treated as follows:         new - load ending resource in a new window, frame, pane, or               other presentation context         replace - load the resource in the same window, frame, pane,                   or other presentation context         embed - load ending resource in place of the presentation of                 the starting resource         other - behavior is unconstrained; examine other markup in the                 link for hints         none - behavior is unconstrained       </documentation>     </annotation>     <simpleType>       <restriction base="string">         <enumeration value="new"/>         <enumeration value="replace"/>         <enumeration value="embed"/>         <enumeration value="other"/>         <enumeration value="none"/>       </restriction>     </simpleType>   </attribute>   <attribute name="actuate">     <annotation>       <documentation>         The 'actuate' attribute is used to communicate the desired         timing of traversal from the starting resource to the ending         resource; it's value should be treated as follows:         onLoad - traverse to the ending resource immediately on                  loading the starting resource         onRequest - traverse from the starting resource to the ending                     resource only on a post-loading event triggered                     for this purpose         other - behavior is unconstrained; examine other markup in                 link for hints         none - behavior is unconstrained       </documentation>     </annotation>     <simpleType>       <restriction base="string">         <enumeration value="onLoad"/>         <enumeration value="onRequest"/>         <enumeration value="other"/>         <enumeration value="none"/>       </restriction>     </simpleType>   </attribute>   <!-- traversal attributes -->   <attribute name="label" type="string" />   <attribute name="from" type="string" />   <attribute name="to" type="string" />   <!-- ==============================================================        Attributes grouped by XLink type, as specified in the W3C        Proposed Recommendation (dated 2000-12-20)   =============================================================== -->   <attributeGroup name="simpleLink">     <attribute name="type" type="string" use="fixed" value="simple"       form="qualified"/>     <attribute ref="xlink:href" use="optional"/>     <attribute ref="xlink:role" use="optional"/>     <attribute ref="xlink:arcrole" use="optional"/>     <attribute ref="xlink:title" use="optional"/>     <attribute ref="xlink:show" use="optional"/>     <attribute ref="xlink:actuate" use="optional"/>   </attributeGroup>   <attributeGroup name="extendedLink">     <attribute name="type" type="string" use="fixed" value="extended"       form="qualified"/>     <attribute ref="xlink:role" use="optional"/>     <attribute ref="xlink:title" use="optional"/>   </attributeGroup>   <attributeGroup name="locatorLink">     <attribute name="type" type="string" use="fixed" value="locator"       form="qualified"/>     <attribute ref="xlink:href" use="required"/>     <attribute ref="xlink:role" use="optional"/>     <attribute ref="xlink:title" use="optional"/>     <attribute ref="xlink:label" use="optional"/>   </attributeGroup>   <attributeGroup name="arcLink">     <attribute name="type" type="string" use="fixed" value="arc"       form="qualified"/>     <attribute ref="xlink:arcrole" use="optional"/>     <attribute ref="xlink:title" use="optional"/>     <attribute ref="xlink:show" use="optional"/>     <attribute ref="xlink:actuate" use="optional"/>     <attribute ref="xlink:from" use="optional"/>     <attribute ref="xlink:to" use="optional"/>   </attributeGroup>   <attributeGroup name="resourceLink">     <attribute name="type" type="string" use="fixed" value="resource"       form="qualified"/>     <attribute ref="xlink:role" use="optional"/>     <attribute ref="xlink:title" use="optional"/>     <attribute ref="xlink:label" use="optional"/>   </attributeGroup>   <attributeGroup name="titleLink">     <attribute name="type" type="string" use="fixed" value="title"       form="qualified"/>   </attributeGroup>   <attributeGroup name="emptyLink">     <attribute name="type" type="string" use="fixed" value="none"       form="qualified"/>     </attributeGroup> </schema> 


Mobile Location Servies(c) The Definitive Guide
Software Project Management in Practice
ISBN: 0201737213
EAN: 2147483647
Year: 2005
Pages: 150
Authors: Pankaj Jalote

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