[infinispan-issues] [JBoss JIRA] (ISPN-4533) Support composite key identifiers

[Sanne Grinovero (JIRA)]

Sanne Grinovero created ISPN-4533:
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             Summary: Support composite key identifiers
                 Key: ISPN-4533
                 URL: https://issues.jboss.org/browse/ISPN-4533
             Project: Infinispan
          Issue Type: Enhancement
      Security Level: Public (Everyone can see)
          Components: Loaders and Stores
            Reporter: Sanne Grinovero
            Assignee: Radim Vansa


The current JPACacheStore doesn't support composite keys, like having multiple attributed annotated with @Id, but this should be possible to implement as any composite key is expected to have a corresponding "wrapper class" which encloses each attribute. This wrapper class would be the identifier for Infinispan too.

The reasonable limitation is that such a key often (but not exclusively) implies a relation with other entities. As in all other cases we can't allow deletion / creation of other related things to be reordered, but that is no reason to ban composite keys altogether as these are very common for other purposes too.



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