CODEWITHSUNDEEP
datanucleusisis
Jeremy
Jeremy

Reputation: 3548

Is ReferentialJDOStateManager not used in DataNucleus 4.x?

I'm working with Apache Isis, attempting to update to DN 4.x but have a question about the ReferentialJDOStateManager in DataNucleus.
The JDOStateManager extended this class in DN 3.x but it is not present in DN 4.x

Affected class in Isis -
public class JDOStateManagerForIsis extends ReferentialJDOStateManager implements StateManager, ObjectProvider

I do see this class -
org.datanucleus.state.ReferentialStateManagerImpl

I thought this might be the appropriate replacement, but if I extend ReferentialStateManagerImpl, there are problems...

The problem I encounter when extending the new class -
ReferentialStateManagerImpl extends StateManagerImpl. Which extends
AbstractStateManager<Persistable>

The current JDOStateManagerForIsis is setup to handle PersistenceCapable objects rather than Persistable objects.

I'm not sure where to go from here.

Upvotes: 1

Views: 49

Answers (1)

Neil Stockton
Neil Stockton

Reputation: 11531

PersistenceCapable is not used by DataNucleus v4.x AFAIK; that was the old JDO-specific bytecode enhancement contract that they no longer use, now using DN-own Persistable. I also see that each StoreManager can define which StateManager/ObjectProvider it is using, and the RDBMS plugin specifies ReferentialStateManagerImpl

Upvotes: 2

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