JPA Annotation

PersistenceContext

Target: TYPE, METHOD, FIELD
Implemented Interfaces:
Annotation
Expresses a dependency on a container-managed EntityManager and its associated persistence context.
Since:
JPA 1.0

Public Annotation Attributes

String name default ""
(Optional) The name by which the entity manager is to be accessed in the environment referencing context; not needed when dependency injection is used.
Since:
JPA 1.0
PersistenceProperty[] properties default {}
(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.
Since:
JPA 1.0
SynchronizationType synchronization default SynchronizationType.SYNCHRONIZED
(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:
JPA 2.1
PersistenceContextType type default PersistenceContextType.TRANSACTION
(Optional) Specifies whether a transaction-scoped persistence context or an extended persistence context is to be used.
Since:
JPA 1.0
String unitName default ""
(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.
Since:
JPA 1.0