Element Detail

• name

  public abstract String name

  (Optional) The name by which the entity manager is to be accessed in the environment referencing context; not needed when dependency injection is used.

  Default:

  ""

• unitName

  public abstract String unitName

  (Optional) The name of the persistence unit as defined in the persistence.xml file. If the unitName element is specified, the persistence unit for the entity manager that is accessible in JNDI must have the same name.

  Default:

  ""

• type

  public abstract PersistenceContextType type

  (Optional) Specifies whether a transaction-scoped persistence context or an extended persistence context is to be used.

  Default:

  javax.persistence.PersistenceContextType.TRANSACTION

• synchronization

  public abstract SynchronizationType synchronization

  (Optional) Specifies whether the persistence context is always automatically synchronized with the current transaction or whether the persistence context must be explicitly joined to the current transaction by means of the EntityManager joinTransaction method.

  Since:

  Java Persistence 2.1

  Default:

  javax.persistence.SynchronizationType.SYNCHRONIZED

• properties

  public abstract PersistenceProperty[] properties

  (Optional) Properties for the container or persistence provider. Vendor specific properties may be included in this set of properties. Properties that are not recognized by a vendor are ignored.

  Default:

  {}