Java Code Examples for com.sun.org.apache.xml.internal.dtm.DTM#getAxisTraverser()

/**
 * Execute the match pattern step relative to another step.
 *
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final XObject executeRelativePathPattern(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  XObject score = NodeTest.SCORE_NONE;
  int context = currentNode;
  DTMAxisTraverser traverser;

  traverser = dtm.getAxisTraverser(m_axis);

  for (int relative = traverser.first(context); DTM.NULL != relative;
          relative = traverser.next(context, relative))
  {
    try
    {
      xctxt.pushCurrentNode(relative);

      score = execute(xctxt);

      if (score != NodeTest.SCORE_NONE)
        break;
    }
    finally
    {
      xctxt.popCurrentNode();
    }
  }

  return score;
}
 

/**
 * Execute the match pattern step relative to another step.
 *
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final XObject executeRelativePathPattern(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  XObject score = NodeTest.SCORE_NONE;
  int context = currentNode;
  DTMAxisTraverser traverser;

  traverser = dtm.getAxisTraverser(m_axis);

  for (int relative = traverser.first(context); DTM.NULL != relative;
          relative = traverser.next(context, relative))
  {
    try
    {
      xctxt.pushCurrentNode(relative);

      score = execute(xctxt);

      if (score != NodeTest.SCORE_NONE)
        break;
    }
    finally
    {
      xctxt.popCurrentNode();
    }
  }

  return score;
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Execute the match pattern step relative to another step.
 *
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final XObject executeRelativePathPattern(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  XObject score = NodeTest.SCORE_NONE;
  int context = currentNode;
  DTMAxisTraverser traverser;

  traverser = dtm.getAxisTraverser(m_axis);

  for (int relative = traverser.first(context); DTM.NULL != relative;
          relative = traverser.next(context, relative))
  {
    try
    {
      xctxt.pushCurrentNode(relative);

      score = execute(xctxt);

      if (score != NodeTest.SCORE_NONE)
        break;
    }
    finally
    {
      xctxt.popCurrentNode();
    }
  }

  return score;
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Execute the match pattern step relative to another step.
 *
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final XObject executeRelativePathPattern(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  XObject score = NodeTest.SCORE_NONE;
  int context = currentNode;
  DTMAxisTraverser traverser;

  traverser = dtm.getAxisTraverser(m_axis);

  for (int relative = traverser.first(context); DTM.NULL != relative;
          relative = traverser.next(context, relative))
  {
    try
    {
      xctxt.pushCurrentNode(relative);

      score = execute(xctxt);

      if (score != NodeTest.SCORE_NONE)
        break;
    }
    finally
    {
      xctxt.popCurrentNode();
    }
  }

  return score;
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Execute the match pattern step relative to another step.
 *
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final XObject executeRelativePathPattern(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  XObject score = NodeTest.SCORE_NONE;
  int context = currentNode;
  DTMAxisTraverser traverser;

  traverser = dtm.getAxisTraverser(m_axis);

  for (int relative = traverser.first(context); DTM.NULL != relative;
          relative = traverser.next(context, relative))
  {
    try
    {
      xctxt.pushCurrentNode(relative);

      score = execute(xctxt);

      if (score != NodeTest.SCORE_NONE)
        break;
    }
    finally
    {
      xctxt.popCurrentNode();
    }
  }

  return score;
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}
 

/**
 * New Method to check whether the current node satisfies a position predicate
 *
 * @param xctxt The XPath runtime context.
 * @param predPos Which predicate we're evaluating of foo[1][2][3].
 * @param dtm The DTM of the current node.
 * @param context The currentNode.
 * @param pos The position being requested, i.e. the value returned by
 *            m_predicates[predPos].execute(xctxt).
 *
 * @return true of the position of the context matches pos, false otherwise.
 */
private final boolean checkProximityPosition(XPathContext xctxt,
        int predPos, DTM dtm, int context, int pos)
{

  try
  {
    DTMAxisTraverser traverser =
      dtm.getAxisTraverser(Axis.PRECEDINGSIBLING);

    for (int child = traverser.first(context); DTM.NULL != child;
            child = traverser.next(context, child))
    {
      try
      {
        xctxt.pushCurrentNode(child);

        if (NodeTest.SCORE_NONE != super.execute(xctxt, child))
        {
          boolean pass = true;

          try
          {
            xctxt.pushSubContextList(this);

            for (int i = 0; i < predPos; i++)
            {
              xctxt.pushPredicatePos(i);
              try
              {
                XObject pred = m_predicates[i].execute(xctxt);

                try
                {
                  if (XObject.CLASS_NUMBER == pred.getType())
                  {
                    throw new Error("Why: Should never have been called");
                  }
                  else if (!pred.boolWithSideEffects())
                  {
                    pass = false;

                    break;
                  }
                }
                finally
                {
                  pred.detach();
                }
              }
              finally
              {
                xctxt.popPredicatePos();
              }
            }
          }
          finally
          {
            xctxt.popSubContextList();
          }

          if (pass)
            pos--;

          if (pos < 1)
            return false;
        }
      }
      finally
      {
        xctxt.popCurrentNode();
      }
    }
  }
  catch (javax.xml.transform.TransformerException se)
  {

    // TODO: should keep throw sax exception...
    throw new java.lang.RuntimeException(se.getMessage());
  }

  return (pos == 1);
}