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Subject: [OASIS Issue Tracker] Updated: (ODATA-476) Clarify that type-cast segments are required for properties of derived types in system query options
[ http://tools.oasis-open.org/issues/browse/ODATA-476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Pizzo updated ODATA-476:
--------------------------------
Environment: [Applied] (was: [Proposed])
In 5.1.1.7, Path Expressions of [URL Conventions], I replaced:
"Properties of derived types can be used by specifying the qualified name of a derived type, followed by a forward slash / and the name of the property of the derived type, see addressing derived types"
with:
"To access properties of derived types, the property name MUST be prefixed with the qualified name of the derived type on which the property is defined, followed by a forward slash (/). See addressing derived types"
In 5.1.3, System Query Option $select I replaced:
"Qualifying the selectItem with a qualifiedEntityTypeName prefix casts the entity or complex value to the specified type in order to select a property of that derived type."
with:
"Qualifying tThe selectItem MUST be prefixed with a qualifiedEntityTypeName prefix or qualifiedComplexTypeName casts the entity or complex value to the specified type in order to select a property of that defined on a type derived typefrom the type of the resource segment."
> Clarify that type-cast segments are required for properties of derived types in system query options
> ----------------------------------------------------------------------------------------------------
>
> Key: ODATA-476
> URL: http://tools.oasis-open.org/issues/browse/ODATA-476
> Project: OASIS Open Data Protocol (OData) TC
> Issue Type: Improvement
> Components: OData URL Conventions
> Affects Versions: V4.0_CS01
> Environment: [Applied]
> Reporter: Ralf Handl
> Assignee: Michael Pizzo
> Fix For: V4.0_CSD03
>
>
> We allow type-cast segments in expressions, but we don't specify whether they are required.
> As a property name is unique within an instance, the type-cast segment is not necessary for evaluating the expression, but it helps evaluating the expression.
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