/*
* 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.
RetentionPolicy.
RUNTIME;
/**
* The NamedSubgraph annotation is used to further define an attribute node. It is referenced by its name from
* the subgraph or keySubgraph element of a NamedAttributeNode element.
*
* @since JPA 2.1
*/
@
Target({}) @
Retention(
RUNTIME)
public @interface
NamedSubgraph {
/**
* The name element is the name used to reference the subgraph from a NamedAttributeNode definition. In the case
* of entity inheritance, multiple subgraph elements have the same name.
*/
String name();
/**
* The type element must be specified when the subgraph corresponds to a subclass of the entity type corresponding
* to the referencing attribute node.
*/
Class type() default void.class;
/**
* Lists attributes of the class that must be included. If the subgraph corresponds to a subclass of the class
* referenced by the corresponding attribute node, only subclass-specific attributes are listed.
*/
NamedAttributeNode[] attributeNodes();
}