javax.persistence.PersistenceContext Maven / Gradle / Ivy
// $Id: PersistenceContext.java 17752 2009-10-15 01:19:21Z [email protected] $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.TYPE;
import java.lang.annotation.Retention;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Target;
/**
* Expresses a dependency on a container-managed {@link EntityManager} and its
* associated persistence context.
*
* @since Java Persistence 1.0
*/
@Target({TYPE, METHOD, FIELD})
@Retention(RUNTIME)
public @interface PersistenceContext {
/**
* (Optional) The name by which the entity manager is to be accessed in the
* environment referencing context; not needed when dependency
* injection is used.
*/
String name() 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.
*/
String unitName() default "";
/**
* (Optional) Specifies whether a transaction-scoped persistence context
* or an extended persistence context is to be used.
*/
PersistenceContextType type() default PersistenceContextType.TRANSACTION;
/**
* (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.
*/
PersistenceProperty[] properties() default {};
}