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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, exception, object, object, pathcallparamrule, pathcallparamrule, rule, sax, string, string, stringbuffer, stringbuffer

The Tomcat source code

/* $Id: 467222 2006-10-24 03:17:11Z markt $
 * 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.tomcat.util.digester;

import org.xml.sax.Attributes;

 * <p>Rule implementation that saves a parameter containing the 
 * <code>Digester matching path for use by a surrounding 
 * <code>CallMethodRule. This Rule is most useful when making 
 * extensive use of wildcards in rule patterns.</p>
 * @since 1.6

public class PathCallParamRule extends Rule {

    // ----------------------------------------------------------- Constructors

     * Construct a "call parameter" rule that will save the body text of this
     * element as the parameter value.
     * @param paramIndex The zero-relative parameter number
    public PathCallParamRule(int paramIndex) {

        this.paramIndex = paramIndex;

    // ----------------------------------------------------- Instance Variables

     * The zero-relative index of the parameter we are saving.
    protected int paramIndex = 0;

    // --------------------------------------------------------- Public Methods

     * Process the start of this element.
     * @param namespace the namespace URI of the matching element, or an 
     *   empty string if the parser is not namespace aware or the element has
     *   no namespace
     * @param name the local name if the parser is namespace aware, or just 
     *   the element name otherwise
     * @param attributes The attribute list for this element

    public void begin(String namespace, String name, Attributes attributes) throws Exception {

        String param = getDigester().getMatch();
        if(param != null) {
            Object parameters[] = (Object[]) digester.peekParams();
            parameters[paramIndex] = param;

     * Render a printable version of this Rule.
    public String toString() {

        StringBuffer sb = new StringBuffer("PathCallParamRule[");
        return (sb.toString());


Other Tomcat examples (source code examples)

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