/* * Copyright (c) 2008, 2009 Sun Microsystems. 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 2.0 - Version 2.0 (October 1, 2009) * Specification available from http://jcp.org/en/jsr/detail?id=317 */ // $Id: FetchType.java 20957 2011-06-13 09:58:51Z stliu $ package javax.persistence; /** * Defines strategies for fetching data from the database. * The <code>EAGER</code> strategy is a requirement on the persistence * provider runtime that data must be eagerly fetched. The * <code>LAZY</code> strategy is a hint to the persistence provider * runtime that data should be fetched lazily when it is * first accessed. The implementation is permitted to eagerly * fetch data for which the <code>LAZY</code> strategy hint has been * specified. * * <pre> * Example: * @Basic(fetch=LAZY) * protected String getName() { return name; } * </pre> * * @see Basic * @see ElementCollection * @see ManyToMany * @see OneToMany * @see ManyToOne * @see OneToOne * @since Java Persistence 1.0 */ public enum FetchType { /** Defines that data can be lazily fetched. */ LAZY, /** Defines that data must be eagerly fetched. */ EAGER }