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/*

 * 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,

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package com.sun.org.apache.xpath.internal.objects;

import com.sun.org.apache.xml.internal.dtm.DTM;

import com.sun.org.apache.xpath.internal.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;

 }

}