Allow definition of "simple" types that fix values for facet attributes of primitive types

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    • Type: New Feature
    • Resolution: Fixed
    • Priority: Minor
    • V4.0_WD01
    • Affects Version/s: V4.0_WD01
    • Component/s: CSDL XML
    • None
    • Environment:

      [Proposed]

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      Support a new TypeDefinition element for defining new simple types. TypeDefinitions specify a name, underlying types, and zero or more facets applicable to that type.
      -TypeDefinitions cannot derive from base type definitions.
      -TypeDefinitions can be used wherever a simple type is used (other than as the underlying type in a new TypeDefinition), and are type-comparable with their underlying types and any TypeDefinitions defined using the same underlying type.
      -Additional facets appropriate for the underlying type may be specified in the usage, but the facets specified in the typedefinition must not be respecified.
      -Annotations may be applied to a TypeDefinition, and are considered applied wherever the TypeDefinition is used. Applying the same annotation to a property whose TypeDefinition already defines that annotation is an error.
      -Where TypeDefinitions are used, the type definition is returned in place of the primitive type wherever the type is specified in a response.
      Example:
      <TypeDefinition Name="Length" UnderlyingType="Edm.Int32" Nullable=false>
      <Annotation Term="Org.Odata.Measurements.V1.Units" String="Centimeters"/>
      </TypeDefinition>
      <TypeDefinition Name="Weight" UnderlyingType="Edm.Int32" Nullable=false>
      <Annotation Term=" Org.Odata.Measurements.V1.Units" String="Kilograms"/>
      </TypeDefinition>
      <ComplexType Name="Size">
      <Property Name="Height" Type="Self.Length" />
      <Property Name="Weight" Type="Self.Weight" />
      </ComplexType>

      Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47355/latest/odata_meeting-14_on-20121101-minutes.html

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      Support a new TypeDefinition element for defining new simple types. TypeDefinitions specify a name, underlying types, and zero or more facets applicable to that type. -TypeDefinitions cannot derive from base type definitions. -TypeDefinitions can be used wherever a simple type is used (other than as the underlying type in a new TypeDefinition), and are type-comparable with their underlying types and any TypeDefinitions defined using the same underlying type. -Additional facets appropriate for the underlying type may be specified in the usage, but the facets specified in the typedefinition must not be respecified. -Annotations may be applied to a TypeDefinition, and are considered applied wherever the TypeDefinition is used. Applying the same annotation to a property whose TypeDefinition already defines that annotation is an error. -Where TypeDefinitions are used, the type definition is returned in place of the primitive type wherever the type is specified in a response. Example: <TypeDefinition Name="Length" UnderlyingType="Edm.Int32" Nullable=false> <Annotation Term="Org.Odata.Measurements.V1.Units" String="Centimeters"/> </TypeDefinition> <TypeDefinition Name="Weight" UnderlyingType="Edm.Int32" Nullable=false> <Annotation Term=" Org.Odata.Measurements.V1.Units" String="Kilograms"/> </TypeDefinition> <ComplexType Name="Size"> <Property Name="Height" Type="Self.Length" /> <Property Name="Weight" Type="Self.Weight" /> </ComplexType> Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47355/latest/odata_meeting-14_on-20121101-minutes.html
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      https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47437/odata-core-v1.0-wd01-part3-csdl-2012-11-12-RH.doc
      https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=97
      https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx

      Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html

      https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx

      Accepted: https://www.oasis-open.org/committees/download.php/48269/odata-meeting-25_on-20130214-minutes.html#odata-119

      Show
      https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47437/odata-core-v1.0-wd01-part3-csdl-2012-11-12-RH.doc https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/spec/schemas/csdl.xsd?rev=97 https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47595/latest/odata-meeting-16_on-20121129-minutes.html https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48216/odata-core-v1.0-wd01-part1-protocol-2013-2-11-MP.docx Accepted: https://www.oasis-open.org/committees/download.php/48269/odata-meeting-25_on-20130214-minutes.html#odata-119

      It would be helpful if we could define "simple" types that are based on primitive types. This would be useful for providing values for facet attributes in one place:

      <SimpleType Name="Char80" BaseType="Edm.String" MaxLength="80" FixedLength="true" />
      <SimpleType Name="AmountInFInancialReportingCurrency" BaseType="Edm.Decimal" Precision="30" Scale="2" />

            Assignee:
            handl
            Reporter:
            handl
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              Created:
              Updated:
              Resolved: