[OASIS Issue Tracker] Created: (ODATA-244) Support navigation properties on complex types

Support navigation properties on complex types
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                 Key: ODATA-244
                 URL: http://tools.oasis-open.org/issues/browse/ODATA-244
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Improvement
          Components: OData Protocol v1.0
    Affects Versions: WD01
         Environment: [Proposed]
            Reporter: Michael Pizzo
            Assignee: Michael Pizzo
            Priority: Minor
             Fix For: WD01


Today navigation properties must be direct children of the entity. We should support navigation properties being defined on properties grouped into a complex type. For example:

<ComplexType Name="Address">
    <Property Name="Street" Type="Edm.String" />
    <NavigationProperty Name="City" Type="MyModel.City" />
    <NavigationProperty Name="Region" Type="MyModel.Region" />
    <NavigationProperty Name="Country" Type="MyModel.Country" />
</ComplexType>

If a type <Person> has an Address, then you could express the navigation property binding as:

<EntitySet Name="People" Type="Person">
    <NavigationPropertyBinding Path="Address/City" EntitySet="Cities"/>
    <NavigationPropertyBinding Path="Address/Region" EntitySet="Regions"/>
    <NavigationPropertyBinding Path="Address/Country" EntitySet="Countries"/>
</EntitySet>


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