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The Java Persistence API (JPA) : a standard interface-based Java model abstraction of persistence, developed by the JCP.

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/*
 * 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;

/**
 * Used as the value of the
 * javax.persistence.cache.retrieveMode property to
 * specify the behavior when data is retrieved by the
 * find methods and by queries.
 *
 * @since Java Persistence 2.0
 */
public enum CacheRetrieveMode {

    /**
     * Read entity data from the cache: this is
     * the default behavior.
     */
    USE,

    /**
     * Bypass the cache: get data directly from
     * the database.
     */
    BYPASS
}