odata message

Subject: [OASIS Issue Tracker] Created: (ODATA-123) Referential constraint: prose text does not properly reflect case of optional principal

From: OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>
To: odata@lists.oasis-open.org
Date: Thu, 13 Sep 2012 08:23:32 -0400 (EDT)

Referential constraint: prose text does not properly reflect case of optional principal
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                 Key: ODATA-123
                 URL: http://tools.oasis-open.org/issues/browse/ODATA-123
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Bug
          Components: OData CSDL v1.0
    Affects Versions: WD01
            Reporter: Ralf Handl
            Assignee: Ralf Handl
            Priority: Minor
             Fix For: WD01


A referential constraint is explicitly allowed and definitely makes sense also in cases where the principal cardinality is 0..1, i.e. when the "dependent" entity may have no "principal".

It is just a constraint on property values of the "dependent" entity: if the entity is associated to a "principal", the dependent properties must have the same value as the corresponding principal properties.

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