/*
* Copyright (c) 2008, 2009, 2011 Oracle, Inc. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution. The Eclipse Public License is available
* at http://www.eclipse.org/legal/epl-v10.html and the Eclipse Distribution License
* is available at http://www.eclipse.org/org/documents/edl-v10.php.
*/
package javax.persistence;
import java.lang.annotation.
Retention;
import java.lang.annotation.
Target;
import static java.lang.annotation.
ElementType.
FIELD;
import static java.lang.annotation.
ElementType.
METHOD;
import static java.lang.annotation.
ElementType.
TYPE;
import static java.lang.annotation.
RetentionPolicy.
RUNTIME;
/**
* Expresses a dependency on an {@link EntityManagerFactory} and its
* associated persistence unit.
*
* @since Java Persistence 1.0
*/
@
Target({
TYPE,
METHOD,
FIELD })
@
Retention(
RUNTIME)
public @interface
PersistenceUnit {
/**
* (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.
*/
String name() default "";
/**
* (Optional) The name of the persistence unit as defined in the
* <code>persistence.xml</code> file. If specified, the
* persistence unit for the entity manager factory that is
* accessible in JNDI must have the same name.
*/
String unitName() default "";
}