/******************************************************************************* | |
* Copyright (c) 2011, 2013 Oracle and/or its affiliates. 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: | |
* James Sutherland - initial API and implementation | |
******************************************************************************/ | |
package org.eclipse.persistence.annotations; | |
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; | |
/** | |
* Partitioning is used to partition the data for a class across multiple difference databases | |
* or across a database cluster such as Oracle RAC. | |
* Partitioning can provide improved scalability by allowing multiple database machines to service requests. | |
* This annotation configures the named partitioning policy to be used for this Entity or relationship. | |
* <p> | |
* Partitioning can be enabled on an Entity, relationship, query, or session/persistence unit. | |
* | |
* @see Partitioning | |
* @see RoundRobinPartitioning | |
* @see ReplicationPartitioning | |
* @see RangePartitioning | |
* @see ValuePartitioning | |
* @see HashPartitioning | |
* @see PinnedPartitioning | |
* @see UnionPartitioning | |
* @see org.eclipse.persistence.descriptors.partitioning.PartitioningPolicy | |
* @author James Sutherland | |
* @since EclipseLink 2.2 | |
*/ | |
@Target({TYPE, METHOD, FIELD}) | |
@Retention(RUNTIME) | |
public @interface Partitioned { | |
/** | |
* (Required) name of partitioning policy to use. | |
*/ | |
String value(); | |
} |