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Tomcat example source code file (

This example Tomcat source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Tomcat tags/keywords

attributes, class, exception, lifecycle, lifecycle, lifecyclelistener, lifecyclelistener, lifecyclelistenerrule, lifecyclelistenerrule, rule, sax, string, string

The Tomcat source code

 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.catalina.startup;

import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleListener;
import org.apache.tomcat.util.digester.Rule;
import org.xml.sax.Attributes;

 * <p>Rule that creates a new LifecycleListener instance,
 * and associates it with the top object on the stack (which must
 * implement <code>LifecycleListener).

*/ public class LifecycleListenerRule extends Rule { // ----------------------------------------------------------- Constructors /** * Construct a new instance of this Rule. * * @param listenerClass Default name of the LifecycleListener * implementation class to be created * @param attributeName Name of the attribute that optionally * includes an override name of the LifecycleListener class */ public LifecycleListenerRule(String listenerClass, String attributeName) { this.listenerClass = listenerClass; this.attributeName = attributeName; } // ----------------------------------------------------- Instance Variables /** * The attribute name of an attribute that can override the * implementation class name. */ private String attributeName; /** * The name of the <code>LifecycleListener implementation class. */ private String listenerClass; // --------------------------------------------------------- Public Methods /** * Handle the beginning of an XML element. * * @param attributes The attributes of this element * * @exception Exception if a processing error occurs */ public void begin(String namespace, String name, Attributes attributes) throws Exception { // Instantiate a new LifecyleListener implementation object String className = listenerClass; if (attributeName != null) { String value = attributes.getValue(attributeName); if (value != null) className = value; } Class clazz = Class.forName(className); LifecycleListener listener = (LifecycleListener) clazz.newInstance(); // Add this LifecycleListener to our associated component Lifecycle lifecycle = (Lifecycle) digester.peek(); lifecycle.addLifecycleListener(listener); } }

Other Tomcat examples (source code examples)

Here is a short list of links related to this Tomcat source code file:

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