108 lines
3.2 KiB
Plaintext
108 lines
3.2 KiB
Plaintext
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head 1.2;
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access;
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symbols;
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locks; strict;
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comment @# @;
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1.2
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date 2007.03.06.17.30.00; author TWikiGuest; state Exp;
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branches;
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next 1.1;
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1.1
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date 2004.09.12.11.01.00; author GregorHagedorn; state Exp;
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branches;
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next ;
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desc
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@none
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@
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1.2
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log
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@Added topic name via script
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@
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text
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@---+!! %TOPIC%
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%META:TOPICINFO{author="GregorHagedorn" date="1094986860" format="1.0" version="1.1"}%
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%META:TOPICPARENT{name="AgentRoleEnum"}%
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The agent role enumerations are structured into three fundamental enumerations:
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* Creator roles
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* Contributor roles
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* Owner roles
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Unions of these are defined as:
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* Agent roles (= all roles)
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* Creator/Contributor roles
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* Creator roles
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* Contributor roles
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* Owner roles
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This can be modeled as:
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* Agent roles = union of all three
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* Creator/Contributor roles = union of Creator and Contributor
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or as
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* Agent roles = union of all Owner and Creator/Contributor
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* Creator/Contributor roles = union of Creator and Contributor
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However, neither model was accepted by Java Xerxes 2.6.2 (problem detected by detected by Jacob Asiedu). The error message was (astonishingly in both cases!) that <nop>AgentCreatorContributorRole is not a valid restriction of the <nop>AgentRole.
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As a workaround, starting with UBIF 1.0 beta 19, the <nop>AgentCreatorContributorRoleEnum was therefore modeled as an explicit restriction of the <nop>AgentRoleEnum itself, which is way more cumbersome and unintuitive than the original model using simple unions. Original definition:
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<verbatim>
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<xs:simpleType name="AgentCreatorContribRoleEnum">
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<xs:union memberTypes="AgentCreatorRoleEnum AgentContributorRoleEnum"/>
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</xs:simpleType>
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</verbatim>
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New definition (workaround):
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<verbatim>
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<xs:simpleType name="AgentCreatorContribRoleEnum">
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<xs:restriction base="AgentRoleEnum">
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<xs:enumeration value="aut"/>
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<xs:enumeration value="edt"/>
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<xs:enumeration value="cre"/>
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<xs:enumeration value="ill"/>
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<xs:enumeration value="pht"/>
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<xs:enumeration value="ctb"/>
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<xs:enumeration value="trl"/>
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<xs:enumeration value="trc"/>
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<xs:enumeration value="clb"/>
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<xs:enumeration value="col"/>
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<xs:enumeration value="crp"/>
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<xs:enumeration value="prg"/>
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<xs:enumeration value="rth"/>
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<xs:enumeration value="rtm"/>
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<xs:enumeration value="res"/>
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<xs:enumeration value="sad"/>
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<xs:enumeration value="pfr"/>
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<xs:enumeration value="mrk"/>
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<xs:enumeration value="cmm"/>
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<xs:enumeration value="rev"/>
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<xs:enumeration value="csl"/>
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</xs:restriction>
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</xs:simpleType>
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</verbatim>
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Note that the workaround does NOT change the enumeration lists and semantics and it should be possible to change to the more straightforward model later, without changing existing software.
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See the [[%ATTACHURL%/UBIF-AgentRoleProblem_XerxesWorkaround.zip][attached zip file]] for example files (xml instance and xsd schmemata) in which the problem has been isolated.
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-- [[Main.GregorHagedorn][Gregor Hagedorn]] - 12 Sept 2004
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%META:FILEATTACHMENT{name="UBIF-AgentRoleProblem_XerxesWorkaround.zip" attr="h" comment="" date="1094986721" path="C:\Data\Desktop\DESCR\SDD\efgXerxesValidator\UBIF-AgentRoleProblem_XerxesWorkaround.zip" size="11164" user="GregorHagedorn" version="1.1"}%
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@
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1.1
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log
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@none
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@
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text
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@d1 2
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@
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