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javax.persistence.FetchType Maven / Gradle / Ivy
/*
* 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;
/**
* Defines strategies for fetching data from the database.
* The EAGER
strategy is a requirement on the persistence
* provider runtime that data must be eagerly fetched. The
* 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 LAZY
strategy hint has been
* specified.
*
*
* Example:
* @Basic(fetch=LAZY)
* protected String getName() { return name; }
*
*
* @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
}
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