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From "Andrus Adamchik (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAY-1679) A notion of default node
Date Thu, 01 Mar 2012 07:38:00 GMT
A notion of default node
------------------------

                 Key: CAY-1679
                 URL: https://issues.apache.org/jira/browse/CAY-1679
             Project: Cayenne
          Issue Type: Improvement
    Affects Versions: 3.1M3
            Reporter: Andrus Adamchik
            Assignee: Andrus Adamchik


Per CAY-943, Cayenne can merge multiple configurations into a single runtime. Now using that
in a real system, I ran into a scenario that I have to define DataNode over and over again
with the same name across multiple projects. It would be nice to have DataMap-only projects
that would link to a "default" node.

Will add a "default node name" property to DataChannelDescriptor (so that DataChannelDescriptorMerger
could set that). Since 99% of projects are single node, if "default node name"  is null, that
single node will be used as default (the merger probably can take care of that). DataDomain.lookupDataNode
would route all unlinked maps to the default node.

Also DataDomain.lookupDataNode should probably throw on NULL.

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