[OASIS Issue Tracker] (ODATA-1538) Need to constrain functions/actions to particular paths

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Michael Pizzo created ODATA-1538:
------------------------------------

             Summary: Need to constrain functions/actions to particular paths
                 Key: ODATA-1538
                 URL: https://issues.oasis-open.org/browse/ODATA-1538
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: New Feature
          Components: CSDL JSON , CSDL XML, Vocabularies
    Affects Versions: V4.01_OS
         Environment: Today, actions and functions are bound to a type. This implies that, anywhere that type is present, the action or function can be invoked.

There are many scenarios in which whether an action or function could be invoked is dependent upon where the instance of the type lives.

For such scenarios, it would be nice to be able to specify exactly what usages of a type supported a particular operation.

One option would be to introduce a BindingConstraint annotation; something like:

~~~xml
<Action Name="forward" IsBound="true" >
        <AnnotationTerm="Org.OData.Core.V1.Capabilities.BindingConstraint">
            <Collection>
                <Record>
                   <PropertyValue Property="Target" String="/me/email"/>
                </Record>
            </Collection>
        </Annotation>
        <ParameterName="bindingParameter" Type="Collection(self.email)"/>
        <ParameterName="recipient" Type="Collection(self.recipent)"/>
        <ReturnTypeType="Collection(self.email)" />
</Action>
~~~
            Reporter: Michael Pizzo
             Fix For: V4.01_OS






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