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1   /* $Id: ContainerCustomRules.java 1102402 2011-05-12 18:03:26Z simonetripodi $
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one or more
4    * contributor license agreements.  See the NOTICE file distributed with
5    * this work for additional information regarding copyright ownership.
6    * The ASF licenses this file to You under the Apache License, Version 2.0
7    * (the "License"); you may not use this file except in compliance with
8    * the License.  You may obtain a copy of the License at
9    *
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.commons.digester3.plugins;
20  
21  import org.apache.commons.digester3.Digester;
22  import org.apache.commons.digester3.plugins.PluginCreateRule;
23  import org.apache.commons.digester3.plugins.PluginDeclarationRule;
24  
25  public class ContainerCustomRules
26  {
27      public static void addRules( Digester digester, String pattern )
28      {
29          // A Container object can have subtags called "widget" which
30          // define any object of type Widget. Because a Container is
31          // itself a widget, this allows us to build trees of objects.
32          PluginCreateRule pcr = new PluginCreateRule( Widget.class );
33          digester.addRule( pattern + "/widget", pcr );
34          digester.addSetNext( pattern + "/widget", "addChild" );
35  
36          // allow users to declare plugins under a container as well
37          PluginDeclarationRule pdr = new PluginDeclarationRule();
38          digester.addRule( pattern + "/plugin", pdr );
39      }
40  }