pluginclassloader.java

nutch0.8源码

/*
/**
 * Copyright 2005 The Apache Software Foundation
 *
 * Licensed 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.nutch.plugin;
import java.net.URL;
import java.net.URLClassLoader;
/**
 * The <code>PluginClassLoader</code> contains only classes of the runtime
 * libraries setuped in the plugin manifest file and exported libraries of
 * plugins that are required pluguin. Libraries can be exported or not. Not
 * exported libraries are only used in the plugin own
 * <code>PluginClassLoader</code>. Exported libraries are available for
 * <code>PluginClassLoader</code> of plugins that depends on these plugins.
 * 
 * @author joa23
 */
public class PluginClassLoader extends URLClassLoader {
  /**
   * Construtor
   * 
   * @param urls
   *            Array of urls with own libraries and all exported libraries of
   *            plugins that are required to this plugin
   * @param parent
   */
  public PluginClassLoader(URL[] urls, ClassLoader parent) {
    super(urls, parent);
  }
}