[OASIS Issue Tracker] Created: (ODATA-61) Allow complex properties or components of complex properties as parts of a referential constraint

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

Allow complex properties or components of complex properties as parts of a referential constraint
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                 Key: ODATA-61
                 URL: http://tools.oasis-open.org/issues/browse/ODATA-61
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Improvement
         Environment: [Proposed]
            Reporter: Ralf Handl


Complex types may be used to semantically structure an entity type, e.g. grouping an Amount and a CurrencyCode into a complex type MonetaryAmount. 

Properties of complex types need to take the role of a dependent in a referential constraint, expressing e.g. that the CurrencyCode of the above complex type must only take values defined by the key property Code of a Currency entity type:

<ReferentialConstraint>
  <Principal Role="Currency">
    <PropertyRef Name="Code" />
  </Principal>
  <Dependent Role="OrderItem">
    <PropertyRef Name="ItemPrice/CurrencyCode" />
  </Dependent>
</ReferentialConstraint>

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