| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.cocoon.components.classloader; |
| |
| import org.apache.avalon.framework.component.Component; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * A class loader manager acting as a proxy for a <b>single</b> |
| * <code>RepositoryClassLoader</code>. |
| * This class guarantees that a single class loader instance exists so |
| * that it can be safely reinstantiated for dynamic class reloading |
| * |
| * @author <a href="mailto:ricardo@apache.org">Ricardo Rocha</a> |
| * @version CVS $Id$ |
| */ |
| public interface ClassLoaderManager extends Component { |
| |
| String ROLE = ClassLoaderManager.class.getName(); |
| |
| /** |
| * Add a directory to the proxied class loader |
| * |
| * @param directoryName The repository name |
| * @exception IOException If the directory is invalid |
| */ |
| void addDirectory(File directoryName) throws IOException; |
| |
| /** |
| * Load a class through the proxied class loader |
| * |
| * @param className The name of the class to be loaded |
| * @return The loaded class |
| * @exception ClassNotFoundException If the class is not found |
| */ |
| Class loadClass(String className) throws ClassNotFoundException; |
| |
| /** |
| * Reinstantiate the proxied class loader to allow for class reloading |
| * |
| */ |
| void reinstantiate(); |
| } |