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.
   */
  
  package org.apache.xpath.objects;
  
  import org.apache.xml.dtm.DTM;
  import org.apache.xpath.XPathContext;
  /*
   * 
   * @author igorh
   *
   * Simple wrapper to DTM and XPathContext objects.
   * Used in XRTreeFrag for caching references to the objects.
   */
   public final class DTMXRTreeFrag {
    private DTM m_dtm;
    private int m_dtmIdentity = DTM.NULL;
    private XPathContext m_xctxt;
   
    public DTMXRTreeFrag(int dtmIdentity, XPathContext xctxt){
        m_xctxt = xctxt;
        m_dtmIdentity = dtmIdentity;
        m_dtm = xctxt.getDTM(dtmIdentity); 
      }
  
    public final void destruct(){
      m_dtm = null;         
      m_xctxt = null; 
   }
  
  final  DTM getDTM(){return m_dtm;}
  public final  int getDTMIdentity(){return m_dtmIdentity;}
  final  XPathContext getXPathContext(){return m_xctxt;}
  
  public final int hashCode() { return m_dtmIdentity; }
  public final boolean equals(Object obj) {
     if (obj instanceof DTMXRTreeFrag) {
         return (m_dtmIdentity == ((DTMXRTreeFrag)obj).getDTMIdentity());
     }
     return false;
   }
  
  }
  