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Hibernate example source code file (LazyPropertyInitializer.java)

This example Hibernate source code file (LazyPropertyInitializer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Hibernate tags/keywords

io, lazypropertyinitializer, object, object, serializable, serializable, sessionimplementor, sessionimplementor, string, unfetched_property, unfetched_property

The Hibernate LazyPropertyInitializer.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008-2011, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.bytecode.instrumentation.spi;

import java.io.Serializable;

import org.hibernate.engine.spi.SessionImplementor;

/**
 * Contract for controlling how lazy properties get initialized.
 * 
 * @author Gavin King
 */
public interface LazyPropertyInitializer {

	/**
	 * Marker value for uninitialized properties
	 */
	public static final Serializable UNFETCHED_PROPERTY = new Serializable() {
		public String toString() {
			return "<lazy>";
		}
		public Object readResolve() {
			return UNFETCHED_PROPERTY;
		}
	};

	/**
	 * Initialize the property, and return its new value
	 *
	 * @param fieldName The name of the field being initialized
	 * @param entity The entity on which the initialization is occurring
	 * @param session The session from which the initialization originated.
	 *
	 * @return ?
	 */
	public Object initializeLazyProperty(String fieldName, Object entity, SessionImplementor session);

}

Other Hibernate examples (source code examples)

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