Package jakarta.persistence
Annotation Type PersistenceContext
-
@Repeatable(PersistenceContexts.class) @Target({TYPE,METHOD,FIELD}) @Retention(RUNTIME) public @interface PersistenceContext
Expresses a dependency on a container-managedEntityManager
and its associated persistence context.- Since:
- 1.0
-
-
Optional Element Summary
Optional Elements Modifier and Type Optional Element Description 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.PersistenceProperty[]
properties
(Optional) Properties for the container or persistence provider.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 EntityManagerjoinTransaction
method.PersistenceContextType
type
(Optional) Specifies whether a transaction-scoped persistence context or an extended persistence context is to be used.String
unitName
(Optional) The name of the persistence unit as defined in thepersistence.xml
file.
-
-
-
Element Detail
-
name
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
String unitName
(Optional) The name of the persistence unit as defined in thepersistence.xml
file. If theunitName
element is specified, the persistence unit for the entity manager that is accessible in JNDI must have the same name.- Default:
- ""
-
-
-
type
PersistenceContextType type
(Optional) Specifies whether a transaction-scoped persistence context or an extended persistence context is to be used.- Default:
- jakarta.persistence.PersistenceContextType.TRANSACTION
-
-
-
synchronization
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 EntityManagerjoinTransaction
method.- Since:
- 2.1
- Default:
- jakarta.persistence.SynchronizationType.SYNCHRONIZED
-
-
-
properties
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:
- {}
-
-