OData.Community.Keys.V1.xml

<?xml version="1.0" encoding="utf-8"?>
<edmx:Edmx Version="4.0" xmlns:edmx="http://docs.oasis-open.org/odata/ns/edmx">
  <edmx:DataServices>

    <Schema xmlns="http://docs.oasis-open.org/odata/ns/edm" Namespace="OData.Community.Keys.V1" Alias="Keys">

      <Term AppliesTo="EntityType EntitySet NavigationProperty" Type="Collection(Keys.AlternateKey)" Name="AlternateKeys">
        <Annotation Term="Core.Description" String="Communicates available alternate keys"/>
      </Term>

      <ComplexType Name="AlternateKey">
        <Property Type="Collection(Keys.PropertyRef)" Name="Key">
          <Annotation Term="Core.Description" String="The set of properties that make up this key"/>
        </Property>
      </ComplexType>

      <ComplexType Name="PropertyRef">
        <Property Type="Edm.PropertyPath" Name="Name">
          <Annotation Term="Core.Description" String="A path expression resolving to a primitive property of the entity type itself or to a primitive property of a complex property (recursively) of the entity type. The names of the properties in the path are joined together by forward slashes."/>
        </Property>
        <Property Type="Edm.String" Name="Alias">
          <Annotation Term="Core.Description" String="A SimpleIdentifier that MUST be unique within the set of aliases, structural and navigation properties of the containing entity type that MUST be used in the key predicate of URLs"/>
        </Property>
      </ComplexType>

    </Schema>
  </edmx:DataServices>
</edmx:Edmx>