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Key: CAY-92
Summary: Address dependent DataMaps limitations
Type: Improvement
Status: Assigned
Priority: Major
Project: Cayenne
Components:
Cayenne Core Library
Versions:
1.1 [DEV]
Assignee: Andrus Adamchik
Reporter: Andrus Adamchik
Created: Wed, 4 Feb 2004 4:20 PM
Updated: Wed, 4 Feb 2004 4:20 PM
Description:
'Dependent" DataMaps were created to allow extending existing DataMaps by adding extra entities that depend on entities defined elsewhere. There are few limitations that make this approach not very usable:
1. DbRelationships are expected to be defined in pairs (src -> dest and dest -> src) - this can not be achieved with one-way dependency between DataMaps.
2. Even if we get rid of limitation (1) by allowing one-way DbRelationships, we must address the things like defining relationship semantics (e.g. "toDepPK").
Don't see a good solution within current design. Maybe we should investigate our earlier idea of making DbRelationships non-directional (so that they could be defined by entities on either side)?
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