A notion of default node
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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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