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ServerFactory.javaAPI DocGlassfish v2 API3522Fri May 04 22:31:52 BST 2007org.apache.catalina

ServerFactory.java


/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * Portions Copyright Apache Software Foundation.
 * 
 * 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.html
 * or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
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 * as provided by Sun in the GPL Version 2 section of the License file that
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 * Header, with the fields enclosed by brackets [] replaced by your own
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 * elects to include this software in this distribution under the [CDDL or GPL
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package org.apache.catalina;

import org.apache.catalina.core.StandardServer;


/**
 * <p><strong>ServerFactory</strong> allows the registration of the
 * (singleton) <code>Server</code> instance for this JVM, so that it
 * can be accessed independently of any existing reference to the
 * component hierarchy.  This is important for administration tools
 * that are built around the internal component implementation classes.
 *
 * @author Craig R. McClanahan
 * @version $Revision: 1.3 $ $Date: 2007/05/05 05:31:51 $
 */

public class ServerFactory {


    // ------------------------------------------------------- Static Variables


    /**
     * The singleton <code>Server</code> instance for this JVM.
     */
    private static Server server = null;


    // --------------------------------------------------------- Public Methods


    /**
     * Return the singleton <code>Server</code> instance for this JVM.
     */
    public static Server getServer() {
        if( server==null )
            server=new StandardServer();
        return (server);

    }


    /**
     * Set the singleton <code>Server</code> instance for this JVM.  This
     * method must <strong>only</strong> be called from a constructor of
     * the (singleton) <code>Server</code> instance that is created for
     * this execution of Catalina.
     *
     * @param theServer The new singleton instance
     */
    public static void setServer(Server theServer) {

        if (server == null)
            server = theServer;

    }


}