Package javax.persistence

Annotation Type PersistenceUnit

  • @Repeatable(PersistenceUnits.class)
@Target({TYPE,METHOD,FIELD})
@Retention(RUNTIME)
public @interface PersistenceUnit
    Expresses a dependency on an EntityManagerFactory and its associated persistence unit.
    Since:
    1.0

    • Optional Element Summary

      Optional Elements 
      Modifier and Type Optional Element Description
      java.lang.String name
      (Optional) The name by which the entity manager factory is to be accessed in the environment referencing context; not needed when dependency injection is used.
      java.lang.String unitName
      (Optional) The name of the persistence unit as defined in the persistence.xml file.

    • Element Detail

      • name

        java.lang.String name
        (Optional) The name by which the entity manager factory is to be accessed in the environment referencing context; not needed when dependency injection is used.
        Default:
        ""

      • unitName

        java.lang.String unitName
        (Optional) The name of the persistence unit as defined in the persistence.xml file. If specified, the persistence unit for the entity manager factory that is accessible in JNDI must have the same name.
        Default:
        ""