All Downloads are FREE. Search and download functionalities are using the official Maven repository.

jakarta.persistence.FetchType Maven / Gradle / Ivy

There is a newer version: 3.2.0
Show newest version
/*
 * Copyright (c) 2008, 2023 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 v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Linda DeMichiel - 2.1
//     Linda DeMichiel - 2.0


package jakarta.persistence;

/**
 * Defines strategies for fetching data from the database.
 * 
    *
  • The {@link #EAGER} strategy is a requirement on the * persistence provider runtime that data must be eagerly * fetched. *
  • The {@link #LAZY} 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} strategy * hint has been specified. *
* *

Example: * {@snippet : * @Basic(fetch = LAZY) * protected String getName() { return name; } * } * * @see Basic * @see ElementCollection * @see ManyToMany * @see OneToMany * @see ManyToOne * @see OneToOne * * @since 1.0 */ public enum FetchType { /** * Data may be lazily fetched. */ LAZY, /** * Data must be eagerly fetched. */ EAGER }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy