| package org.apache.turbine.services; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache Turbine" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache Turbine", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| /** |
| * This class provides a generic implementation of |
| * <code>Initable</code>. This implementation, that other |
| * <code>Initables</code> are welcome to extend, contains facilities |
| * to maintain internal state. |
| * |
| * @author <a href="mailto:burton@apache.org">Kevin Burton</a> |
| * @author <a href="mailto:krzewski@e-point.pl">Rafal Krzewski</a> |
| * @version $Id$ |
| */ |
| public class BaseInitable |
| implements Initable |
| { |
| /** InitableBroker that instantiatd this class. */ |
| protected InitableBroker initableBroker; |
| |
| /** Initialization status of this class. */ |
| protected boolean isInitialized = false; |
| |
| /** |
| * Default constructor of BaseInitable. |
| * |
| * This constructor does nothing. Your own constructurs should be |
| * modest in allocating memory and other resources, leaving this |
| * to the <code>init()</code> method. |
| */ |
| public BaseInitable() |
| { |
| } |
| |
| /** |
| * Saves InitableBroker reference for later use. |
| * |
| * @param broker The InitableBroker that instantiated this object. |
| */ |
| public void setInitableBroker(InitableBroker broker) |
| { |
| this.initableBroker = broker; |
| } |
| |
| /** |
| * Returns an InitableBroker reference. |
| * |
| * @return The InitableBroker that instantiated this object. |
| */ |
| public InitableBroker getInitableBroker() |
| { |
| return initableBroker; |
| } |
| |
| /** |
| * Performs early initialization. Used in a manner similar to a ctor. |
| * |
| * BaseInitable doesn't need early initialization, therefore it |
| * ignores all objects passed to it and performs no initialization |
| * activities. |
| * |
| * @param data An Object to use for initialization activities. |
| * @exception InitializationException Initialization of this |
| * class was not successful. |
| */ |
| public void init(Object data) throws InitializationException |
| { |
| } |
| |
| /** |
| * Performs late initializtion. Called when the Service is requested |
| * for the first time (if not already completely initialized by the |
| * early initializer). |
| * |
| * Late intialization of a BaseInitable is alwas successful. |
| * |
| * @exception InitializationException Initialization of this |
| * class was not successful. |
| */ |
| public void init() throws InitializationException |
| { |
| } |
| |
| /** |
| * Returns an Initable to uninitialized state. |
| * |
| * Calls setInit(false) to mark that we are no longer in initialized |
| * state. |
| */ |
| public void shutdown() |
| { |
| setInit(false); |
| } |
| |
| /** |
| * Returns initialization status. |
| * |
| * @return True if the initable is initialized. |
| */ |
| public boolean getInit() |
| { |
| return isInitialized; |
| } |
| |
| /** |
| * Sets initailization status. |
| * |
| * @param value The new initialization status. |
| */ |
| protected void setInit(boolean value) |
| { |
| this.isInitialized = value; |
| } |
| } |