| /* |
| * 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. |
| */ |
| |
| /** |
| * The Nutch {@link org.apache.nutch.plugin.Pluggable Plugin} System. |
| * <p><b>The Nutch Plugin System provides a way to extend nutch functionality</b>. |
| * A large part of the functionality of Nutch are provided by plugins: |
| * All of the parsing, indexing and searching that nutch does is actually |
| * accomplished by various plugins.</p> |
| * <p>In writing a plugin, you're actually providing one or more extensions |
| * of the existing extension-points (<i>hooks</i>). The core Nutch extension-points |
| * are themselves defined in a plugin, the <code>nutch-extensionpoints</code> plugin. |
| * Each extension-point defines an interface that must be implemented by the |
| * extension. The core extension-points and extensions available in Nutch are |
| * listed in the {@link org.apache.nutch.plugin.Pluggable} interface.</p> |
| * @see <a href="./doc-files/plugin.dtd">Nutch plugin manifest DTD</a> |
| * @see <a href="https://cwiki.apache.org/confluence/display/NUTCH/PluginCentral">Plugin Central</a> |
| * @see <a href="https://cwiki.apache.org/confluence/display/NUTCH/AboutPlugins">About Plugins</a> |
| * @see <a href="https://cwiki.apache.org/confluence/display/NUTCH/WhyNutchHasAPluginSystem"> |
| * Why Nutch has a Plugin System?</a> |
| * @see <a href="https://cwiki.apache.org/confluence/display/NUTCH/WhichTechnicalConceptsAreBehindTheNutchPluginSystem"> |
| * Which technical concepts are behind the nutch plugin system?</a> |
| * @see <a href="https://cwiki.apache.org/confluence/display/NUTCH/WhatsTheProblemWithPluginsAndClass-loading"> |
| * What's the problem with Plugins and Class loading?</a> |
| * @see <a href="https://cwiki.apache.org/confluence/display/NUTCH/WritingPluginExample"> |
| * Writing Plugin Example</a> |
| */ |
| package org.apache.nutch.plugin; |
