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
   *
   *     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.
   */
  /*
   * $Id$
   */
  
  package org.apache.xml.dtm.ref;
  
  import javax.xml.transform.SourceLocator;
  
  /**
   * <code>NodeLocator</code> maintains information on an XML source
   * node.
   *
   * @author <a href="mailto:ovidiu@cup.hp.com">Ovidiu Predescu</a>
   * @since May 23, 2001
   */
  public class NodeLocator implements SourceLocator
  {
    protected String m_publicId;
    protected String m_systemId;
    protected int m_lineNumber;
    protected int m_columnNumber;
  
    /**
     * Creates a new <code>NodeLocator</code> instance.
     *
     * @param publicId a <code>String</code> value
     * @param systemId a <code>String</code> value
     * @param lineNumber an <code>int</code> value
     * @param columnNumber an <code>int</code> value
     */
    public NodeLocator(String publicId, String systemId,
                       int lineNumber, int columnNumber)
    {
      this.m_publicId = publicId;
      this.m_systemId = systemId;
      this.m_lineNumber = lineNumber;
      this.m_columnNumber = columnNumber;
    }
  
    /**
     * <code>getPublicId</code> returns the public ID of the node.
     *
     * @return a <code>String</code> value
     */
    public String getPublicId()
    {
      return m_publicId;
    }
  
    /**
     * <code>getSystemId</code> returns the system ID of the node.
     *
     * @return a <code>String</code> value
     */
    public String getSystemId()
    {
      return m_systemId;
    }
  
    /**
     * <code>getLineNumber</code> returns the line number of the node.
     *
     * @return an <code>int</code> value
     */
    public int getLineNumber()
    {
      return m_lineNumber;
    }
  
    /**
     * <code>getColumnNumber</code> returns the column number of the
     * node.
     *
     * @return an <code>int</code> value
     */
    public int getColumnNumber()
    {
      return m_columnNumber;
    }
  
    /**
     * <code>toString</code> returns a string representation of this
     * NodeLocator instance.
     *
     * @return a <code>String</code> value
     */
    public String toString()
    {
      return "file '" + m_systemId
        + "', line #" + m_lineNumber
        + ", column #" + m_columnNumber;
    }
  }
  