/*******************************************************************************
* Copyright (c) 2008 - 2014 Oracle Corporation. 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.
*
* Contributors:
* Linda DeMichiel - Java Persistence 2.1
* Linda DeMichiel - Java Persistence 2.0
*
******************************************************************************/
package javax.persistence;
import java.lang.annotation.
Target;
import java.lang.annotation.
Retention;
import static java.lang.annotation.
ElementType.
TYPE;
import static java.lang.annotation.
RetentionPolicy.
RUNTIME;
import static javax.persistence.
InheritanceType.
SINGLE_TABLE;
/**
* Specifies the inheritance strategy to be used for an entity class
* hierarchy. It is specified on the entity class that is the root of
* the entity class hierarchy. If the <code>Inheritance</code> annotation is not
* specified or if no inheritance type is specified for an entity
* class hierarchy, the <code>SINGLE_TABLE</code> mapping strategy is used.
*
* <pre>
*
* Example:
*
* @Entity
* @Inheritance(strategy=JOINED)
* public class Customer { ... }
*
* @Entity
* public class ValuedCustomer extends Customer { ... }
* </pre>
*
* @since Java Persistence 1.0
*/
@
Target({
TYPE})
@
Retention(
RUNTIME)
public @interface
Inheritance {
/** The strategy to be used for the entity inheritance hierarchy. */
InheritanceType strategy() default
SINGLE_TABLE;
}