/*******************************************************************************
* Copyright (c) 2011, 2015 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:
* Gordon Yorke - Initial Contribution
******************************************************************************/
package org.eclipse.persistence.annotations;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* The NonCacheable annotation is used to configure caching behavior for
* relationships. If this annotation is set on a relationship that relationship
* will not be cached even though the parent Entity may be cached. Each time the
* Entity is retrieved the relationship will be reloaded from the data-source.
*
* This may be useful for situations where caching of relationships is not
* desired or when using different EclipseLink IdentityMap types and having
* cached references extends the cache lifetime of related Entities using a
* different caching scheme.
* For instance Entity A references Entity B, Entity A is FullIdentityMap and
* Entity B is WeakIdentityMap. Without removing the caching of the relationship
* the Entity B's cache effectively become a FullIdentityMap.
*
* @author Gordon Yorke
* @since EclipseLink 2.2
*/
@Target({METHOD, FIELD})
@Retention(RUNTIME)
public @interface Noncacheable {
}