| package org.apache.turbine.services.avaloncomponent; |
| |
| /* ==================================================================== |
| * 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/>. |
| */ |
| |
| import org.apache.avalon.framework.component.Component; |
| import org.apache.avalon.framework.component.ComponentException; |
| |
| import org.apache.turbine.services.Service; |
| |
| /** |
| * This service allows access to avalon components. |
| * |
| * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a> |
| * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
| * @version $Id$ |
| */ |
| public interface AvalonComponentService |
| extends Service |
| { |
| /** The publically visible name of the service */ |
| String SERVICE_NAME = "AvalonComponentService"; |
| |
| /** Where we write the Avalon Logger messages */ |
| String AVALON_LOG_CATEGORY = "avalon"; |
| |
| /** property specifing file name of the component config file */ |
| String COMPONENT_CONFIG_KEY = "componentConfiguration"; |
| |
| /** property specifing file name of the component config file */ |
| String COMPONENT_CONFIG_VALUE = "/WEB-INF/conf/componentConfiguration.xml"; |
| |
| /** property specifing file name of the component role file */ |
| String COMPONENT_ROLE_KEY = "componentRoles"; |
| |
| /** property specifing file name of the component role file */ |
| String COMPONENT_ROLE_VALUE = "/WEB-INF/conf/roleConfiguration.xml"; |
| |
| /** property for the Components to look up */ |
| String COMPONENT_LOOKUP_KEY = "lookup"; |
| |
| /** Key used in the context for defining the application root */ |
| String COMPONENT_APP_ROOT = "componentAppRoot"; |
| |
| /** |
| * Returns an instance of the named component |
| * |
| * @param roleName Name of the role the component fills. |
| * @return an instance of the named component |
| * @throws ComponentException generic exception |
| */ |
| Component lookup(String roleName) |
| throws ComponentException; |
| |
| /** |
| * Releases the component |
| * |
| * @param component the component to release |
| */ |
| void release(Component component); |
| |
| } |