org.dom4j.util.SingletonStrategy Maven / Gradle / Ivy

/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package org.dom4j.util;

/**
 * 
 * SingletonStrategy is an interface used to provide common
 * factory access for the same object based on an implementation strategy for
 * singleton. Right now there are two that accompany this interface:
 * SimpleSingleton and PerThreadSingleton. This will replace previous usage of
 * ThreadLocal to allow for alternate strategies.
 * 
 * 
 * @author David Lucas 
 * @version $Revision: 1.2 $
 */
public interface SingletonStrategy {
    /**
     * return a singleton instance of the class specified in setSingletonClass
     */
    Object instance();

    /**
     * reset the instance to a new instance for the implemented strategy
     */
    void reset();

    /**
     * set a singleton class name that will be used to create the singleton
     * based on the strategy implementation of this interface. The default
     * constructor of the class will be used and must be public.
     */
    void setSingletonClassName(String singletonClassName);
}

/*
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 * 
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 * notices. Redistributions must also contain a copy of this document.
 * 
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 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived
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 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may
 * "DOM4J" appear in their names without prior written permission of MetaStuff,
 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */