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Can I have @ManyToOne relationship to an abstract entity using table per class? [message #1607851]

Mon, 09 February 2015 05:28

Anahata Technologies

Messages: 4
Registered: February 2015

Junior Member

I have an abstract @Entity with @Inheritance(strategy=TABLE_PERCLASS) called Booking.

Is it possible to have an @Entity Payment.java with a @ManyToOne relationship to the abstract class?

I wasn't sure how the column mapping would go so i tried deploying using drop and create tables and Eclipselink gives a NPE Smile

at deployment time

Exception Description: Predeployment of PersistenceUnit [xotica-bms-pu] failed. Internal Exception: java.lang.NullPointerException at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.createPredeployFailedPersistenceException(EntityManagerSetupImpl.java:1954) at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1945) at org.eclipse.persistence.jpa.PersistenceProvider.createContainerEntityManagerFactory(PersistenceProvider.java:322)

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