4.4.3.2. PersistenceHelper

A helper class for obtaining the information on persistent entities. Unlike the Persistence and PersistenceTools beans, this class is available on all tiers.

The PersistenceHelper bean has the following methods:

  • isNew() – determines if the passed instance is newly created, i.e., in the New state. Also returns true if this instance is actually in Managed state but newly-persisted in the current transaction, or if it is not a persistent entity.

  • isDetached() – determines if the passed instance is in the Detached state. Also returns true, if this instance is not a persistent entity.

  • isSoftDeleted() – determines if the passed entity class supports the soft deletion.

  • getEntityName() – returns the name of the entity specified in the @Entity annotation.

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