core/src/test/java/org/apache/commons/digester3/plugins/ContainerCustomRules.java

/* $Id$
 *
 * 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.commons.digester3.plugins;

import org.apache.commons.digester3.Digester;
import org.apache.commons.digester3.plugins.PluginCreateRule;
import org.apache.commons.digester3.plugins.PluginDeclarationRule;

public class ContainerCustomRules
{
    public static void addRules( Digester digester, String pattern )
    {
        // A Container object can have subtags called "widget" which
        // define any object of type Widget. Because a Container is
        // itself a widget, this allows us to build trees of objects.
        PluginCreateRule pcr = new PluginCreateRule( Widget.class );
        digester.addRule( pattern + "/widget", pcr );
        digester.addSetNext( pattern + "/widget", "addChild" );

        // allow users to declare plugins under a container as well
        PluginDeclarationRule pdr = new PluginDeclarationRule();
        digester.addRule( pattern + "/plugin", pdr );
    }
}