[jira] [Commented] (DAFFODIL-2738) Support indirect setting of dfdlx:repType/repValues

["Steve Lawrence (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DAFFODIL-2738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17619478#comment-17619478 ] 

Steve Lawrence commented on DAFFODIL-2738:
------------------------------------------

Since this is expected behavior, I've changed this issue to be a "new feature" to support setting repType/repValue on sub types instead of directly on the element or direct simple type.

> Support indirect setting of dfdlx:repType/repValues
> ---------------------------------------------------
>
>                 Key: DAFFODIL-2738
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-2738
>             Project: Daffodil
>          Issue Type: New Feature
>          Components: Back End
>    Affects Versions: 3.3.0
>            Reporter: Olabusayo Kilo
>            Assignee: Steve Lawrence
>            Priority: Major
>             Fix For: 3.4.0
>
>
> This is part of a large schema project. So link access to the schema project will follow in a different comment.
> But a short synopsis is when the repType of an element in a binary data format is an unsignedlong, the repType is ignored in favor of treating the element like a string type.
> For example:
> {code:xml}
>  
>   <xs:element name="a" type="tns:jobEnum"/>
>   <simpleType name="jobEnum" dfdlx:repType="xs:enum4">
>     <restriction base="xs:string">
>       <enumeration value="CTO" dfdlx:repValues="1"/>
>       <enumeration value="MANAGER" dfdlx:repValues="2"/>
>       <enumeration value="TEAM_LEAD" dfdlx:repValues="3"/>
>     </restriction>
>   </simpleType>
>   <xs:simpleType name="enum4" dfdl:length="4" dfdl:lengthKind="explicit" dfld:lengthUnit="bits">
>     <xs:restriction base="xs:unsignedLong"/>
>   </xs:simpleType>
> {code}
>  
> Would result in the following trace
> {code:xml}
> <Element name='a'><SpecifiedLengthExplicitParser><a parser='StringOfSpecifiedLengthParser' /></SpecifiedLengthExplicitParser><AssertExpressionEvaluationParser/></Element>
> {code}
> rather than
> {code:xml}
> <Element name='a'><SpecifiedLengthExplicitParser><a parser='Binary*SpecifiedLengthParser' /></SpecifiedLengthExplicitParser><AssertExpressionEvaluationParser/></Element>
> {code}
> Unfortunately the workaround mentioned in https://issues.apache.org/jira/browse/DAFFODIL-2596?focusedCommentId=17475017&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17475017, won't work for our usecase because the data is binary and has very specific bit length requirements.



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