Manuel Sánchez created CAY-1807:
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Summary: Replace a Detached object with new one on a relationship
throws NPE
Key: CAY-1807
URL: https://issues.apache.org/jira/browse/CAY-1807
Project: Cayenne
Issue Type: Improvement
Components: Core Library
Affects Versions: 3.0.1
Reporter: Manuel Sánchez
Priority: Minor
In the following scenario:
I deleted and persistent object (gets detached) which was used in a relationship
I replaced it with a new one at the end of a relathionship
Cayenne records an ArcDeletedOperation with the detached object involved and
throws a NPE when commiting.
I solved the problem by disconecting the detached object from the relationship
(set to null) and then assigning the new one; in two steps
Cayenne could check if its a detached object on that ArcDeletedOperation and
say so instead of throwing a NPE, or not recording any action, .. something
more elegant than a NPE
Thanks
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