javax.persistence
Annotation Type PersistenceContext

@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface PersistenceContext

Expresses a dependency on an EntityManager persistence context.

Since:

Java Persistence 1.0

Optional Element Summary

String	name The name by which the entity manager is to be accessed in the environment referencing context, and is not needed when dependency injection is used.
PersistenceProperty[]	properties Used to specify properties for the container or persistence provider.
PersistenceContextType	type Specifies whether this is a transaction-scoped persistence context or an extended persistence context.
String	unitName The name of the persistence unit.

name

public abstract String name

The name by which the entity manager is to be accessed in the environment referencing context, and is not needed when dependency injection is used.

Default:

""

unitName

public abstract String unitName

The name of the persistence unit. 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

Specifies whether this is a transaction-scoped persistence context or an extended persistence context.

Default:

TRANSACTION

properties

public abstract PersistenceProperty[] properties

Used to specify 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:

{}