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Subject: [OASIS Issue Tracker] Created: (ODATA-305) Annotations: introduce path segment to address the count of a collection
Annotations: introduce path segment to address the count of a collection ------------------------------------------------------------------------ Key: ODATA-305 URL: http://tools.oasis-open.org/issues/browse/ODATA-305 Project: OASIS Open Data Protocol (OData) TC Issue Type: Improvement Components: OData CSDL Affects Versions: V4.0_WD01 Environment: [Proposed] Reporter: Martin Zurmuehl Annotations: introduce path segment to address the count of a collection: We could use /$count or @odata.count. The first is consistent with URL rules, the second with odata.mediaContentType etc. that we introduced recently in ODATA-227. <?xml version="1.0" encoding="utf-8"?> <edmx:Edmx Version="4.0" xmlns:edmx="http://docs.oasis-open.org/odata/ns/edmx"> <edmx:Reference Url="http://services.odata.org/V3/OData/OData.svc/$metadata" /> <edmx:DataServices> <Schema xmlns="http://docs.oasis-open.org/odata/ns/edm" Namespace="CountSample" Alias="CS"> <Term Name="MostImportantDataFields" Type="Collection(CS.DataFieldType)" /> <ComplexType Name="DataFieldType"> <Property Name="Label" Type="String" Nullable="true" /> <Property Name="Value" Type="Edm.PrimitiveType" Nullable="false" /> <Property Name="NavigationPath" Type="Edm.NavigationPropertyPath" Nullable="true" /> </ComplexType> <Annotations Target="ODataDemo.Category"> <Annotation Term="CS.MostImportantDataFields"> <Collection> <Record> <PropertyValue Property="Label" String="Category Name" /> <PropertyValue Property="Value" Path="Name" /> </Record> <Record> <PropertyValue Property="Label" String="Numbers of Products related to this Categrory" /> <!-- Alternative 1 --> <PropertyValue Property="Value" Path="Products/$count" /> <!-- see $orderby and $filter --> <!-- Alternative 2 --> <PropertyValue Property="Value" Path="Products@odata.count" /><!-- see CSDL 16.2.10 The edm:Path Expression --> <PropertyValue Property="NavigationPath" NavigationPropertyPath="Products" /> </Record> </Collection> </Annotation> </Annotations> </Schema> </edmx:DataServices> </edmx:Edmx> -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
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