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Glassfish example source code file (ClassLoaderStrategy.java)

This example Glassfish source code file (ClassLoaderStrategy.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 - Glassfish tags/keywords

classloaderstrategy, multiple_class_loaders_error, multiple_class_loaders_error, multiple_class_loaders_ignore, multiple_class_loaders_reload, noi18n, noi18n, property_multiple_class_loaders, property_multiple_class_loaders, string, string

The Glassfish ClassLoaderStrategy.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
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 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

/*
 * ClassLoaderStrategy.java
 *
 * Created on August 29, 2003, 3:19 PM
 */

package com.sun.jdo.api.persistence.model;

/**
 *
 * @author mvatkina
 * @version %I%
 */
public class ClassLoaderStrategy
{
	/** System property key used to define the model behavior concerning
	 * multiple class loaders. 
	 * Value should be one of 
	 * {@link #MULTIPLE_CLASS_LOADERS_IGNORE},
	 * {@link #MULTIPLE_CLASS_LOADERS_RELOAD}, or 
	 * {@link #MULTIPLE_CLASS_LOADERS_ERROR}
	 */
	public static final String PROPERTY_MULTIPLE_CLASS_LOADERS =
		"com.sun.jdo.api.persistence.model.multipleClassLoaders"; //NOI18N
	
	/** Constant representing the value "ignore" of the System property
	 * com.sun.jdo.api.persistence.model.multipleClassLoaders
	 * Setting the system property to "ignore" causes the model to ignore
	 * any new class loader for the same fully qualified class name.
	 * @see RuntimeModel#findClassLoader
	 */
	public static final String MULTIPLE_CLASS_LOADERS_IGNORE = "ignore"; //NOI18N

	/** Constant representing the value "reload" of the System property
	 * com.sun.jdo.api.persistence.model.multipleClassLoaders 
	 * Setting the system property to "reload" causes the model to reload 
	 * the class mapping if it is specified with a new class loader.
	 * @see RuntimeModel#findClassLoader
	 */
	public static final String MULTIPLE_CLASS_LOADERS_RELOAD = "reload"; //NOI18N

	/** Constant representing the value "error" of the System property
	 * com.sun.jdo.api.persistence.model.multipleClassLoaders
	 * Setting the system property to "reload" causes the model to throw an
	 * exception if the same class is used with a diferent class loader.
	 * @see RuntimeModel#findClassLoader
	 */
	public static final String MULTIPLE_CLASS_LOADERS_ERROR = "error"; //NOI18N

	/** Value of the property used to define the model behavior concerning
	 * multiple class loaders.
	 */
	private static String _strategy = System.getProperty(
		PROPERTY_MULTIPLE_CLASS_LOADERS, MULTIPLE_CLASS_LOADERS_ERROR);

	/** Get the value of the property 
	 * {@link #PROPERTY_MULTIPLE_CLASS_LOADERS} used to define the model 
	 * behavior concerning multiple class loaders.
	 * @return the value of the property, one of
	 * {@link #MULTIPLE_CLASS_LOADERS_IGNORE},
	 * {@link #MULTIPLE_CLASS_LOADERS_RELOAD}, or
	 * {@link #MULTIPLE_CLASS_LOADERS_ERROR}
	 */
	public static String getStrategy ()
	{
		return _strategy;
	}

	/** Sets the value of the property 
	 * {@link #PROPERTY_MULTIPLE_CLASS_LOADERS} used to define the model 
	 * behavior concerning multiple class loaders.
	 * @param strategy the new value of the property. Value should be one of
	 * {@link #MULTIPLE_CLASS_LOADERS_IGNORE},
	 * {@link #MULTIPLE_CLASS_LOADERS_RELOAD}, or
	 * {@link #MULTIPLE_CLASS_LOADERS_ERROR}
	 * @see RuntimeModel#findClassLoader
	 */
	public static void setStrategy (String strategy)
	{
		_strategy = strategy;
	}

}

Other Glassfish examples (source code examples)

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