/*
    * $Header$
    * $Revision$
    * $Date$
    *
    * ====================================================================
    *
    * Copyright 2000-2002 bob mcwhirter & James Strachan.
    * All rights reserved.
   *
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   * 
   *   * Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   * 
   *   * Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   * 
   *   * Neither the name of the Jaxen Project nor the names of its
   *     contributors may be used to endorse or promote products derived 
   *     from this software without specific prior written permission.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * ====================================================================
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Jaxen Project and was originally
   * created by bob mcwhirter <bob@werken.com> and
   * James Strachan <jstrachan@apache.org>.  For more information on the
   * Jaxen Project, please see <http://www.jaxen.org/>.
   *
   * $Id$
   */
  
  
  
  
  package org.jaxen.saxpath.helpers;
  
  import org.jaxen.saxpath.SAXPathException;
  import org.jaxen.saxpath.XPathHandler;
  
  /**
  
     Default base class for SAXPath event handlers. 
  
     This class is available as a convenience base class for SAXPath
     applications: it provides a default do-nothing implementation 
     for all of the callbacks in the core SAXPath handler class, {@link
     org.jaxen.saxpath.XPathHandler}.
  
     Application writers can extend this class when they need to
     implement only part of the <code>XPathHandler</code>
     interface. Parser writers can instantiate
     this class to provide default handlers when the application has not
     supplied its own. */
  
  public class DefaultXPathHandler implements XPathHandler
  {
  
      public void startXPath() throws SAXPathException
      {
      }
  
      public void endXPath() throws SAXPathException
      {
      }
  
      public void startPathExpr() throws SAXPathException
      {
      }
  
      public void endPathExpr() throws SAXPathException
      {
      }
  
      public void startAbsoluteLocationPath() throws SAXPathException
      {
      }
  
      public void endAbsoluteLocationPath() throws SAXPathException
      {
      }
  
      public void startRelativeLocationPath() throws SAXPathException
     {
     }
 
     public void endRelativeLocationPath() throws SAXPathException
     {
     }
 
     public void startNameStep(int axis,
                               String prefix,
                               String localName) throws SAXPathException
     {
     }
 
     public void endNameStep() throws SAXPathException
     {
     }
 
     public void startTextNodeStep(int axis) throws SAXPathException
     {
     }
     public void endTextNodeStep() throws SAXPathException
     {
     }
 
     public void startCommentNodeStep(int axis) throws SAXPathException
     {
     }
 
     public void endCommentNodeStep() throws SAXPathException
     {
     }
 
     public void startAllNodeStep(int axis) throws SAXPathException
     {
     }
 
     public void endAllNodeStep() throws SAXPathException
     {
     }
 
     public void startProcessingInstructionNodeStep(int axis,
                                                    String name) throws SAXPathException
     {
     }
     public void endProcessingInstructionNodeStep() throws SAXPathException
     {
     }
 
     public void startPredicate() throws SAXPathException
     {
     }
 
     public void endPredicate() throws SAXPathException
     {
     }
 
     public void startFilterExpr() throws SAXPathException
     {
     }
 
     public void endFilterExpr() throws SAXPathException
     {
     }
 
     public void startOrExpr() throws SAXPathException
     {
     }
 
     public void endOrExpr(boolean create) throws SAXPathException
     {
     }
 
     public void startAndExpr() throws SAXPathException
     {
     }
 
     public void endAndExpr(boolean create) throws SAXPathException
     {
     }
 
     public void startEqualityExpr() throws SAXPathException
     {
     }
 
     public void endEqualityExpr(int operator) throws SAXPathException
     {
     }
 
     public void startRelationalExpr() throws SAXPathException
     {
     }
 
     public void endRelationalExpr(int operator) throws SAXPathException
     {
     }
 
     public void startAdditiveExpr() throws SAXPathException
     {
     }
 
     public void endAdditiveExpr(int operator) throws SAXPathException
     {
     }
 
     public void startMultiplicativeExpr() throws SAXPathException
     {
     }
 
     public void endMultiplicativeExpr(int operator) throws SAXPathException
     {
     }
 
     public void startUnaryExpr() throws SAXPathException
     {
     }
 
     public void endUnaryExpr(int operator) throws SAXPathException
     {
     }
 
     public void startUnionExpr() throws SAXPathException
     {
     }
 
     public void endUnionExpr(boolean create) throws SAXPathException
     {
     }
 
     public void number(int number) throws SAXPathException
     {
     }
 
     public void number(double number) throws SAXPathException
     {
     }
 
     public void literal(String literal) throws SAXPathException
     {
     }
 
     public void variableReference(String prefix,
                                   String variableName) throws SAXPathException
     {
     }
 
     public void startFunction(String prefix,
                               String functionName) throws SAXPathException
     {
     }
 
     public void endFunction() throws SAXPathException
     {
     }
 
 }