Commons Digester example source code file (ContainerCustomRules.java)

This example Commons Digester source code file (ContainerCustomRules.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons Digester tags/keywords

containercustomrules, containercustomrules, plugincreaterule, plugincreaterule, plugindeclarationrule, plugindeclarationrule, string, string

The Commons Digester ContainerCustomRules.java source code

/* $Id: ContainerCustomRules.java 992060 2010-09-02 19:09:47Z simonetripodi $
 *
 * 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.digester.plugins;

import org.apache.commons.digester.Digester;

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);
    }
}