Java Code Examples for com.sun.org.apache.xpath.internal.objects.XObject#detach()

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public boolean bool(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{
  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  boolean result = left.equals(right) ? true : false;
      left.detach();
      right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public boolean bool(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{
  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  boolean result = left.equals(right) ? true : false;
      left.detach();
      right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public boolean bool(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{
  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  boolean result = left.equals(right) ? true : false;
      left.detach();
      right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * Execute a binary operation by calling execute on each of the operands,
 * and then calling the operate method on the derived class.
 *
 *
 * @param xctxt The runtime execution context.
 *
 * @return The XObject result of the operation.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt)
        throws javax.xml.transform.TransformerException
{

  XObject left = m_left.execute(xctxt, true);
  XObject right = m_right.execute(xctxt, true);

  XObject result = operate(left, right);
  left.detach();
  right.detach();
  return result;
}
 

/**
 * 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);
}
 

/**
 * Execute the predicates on this step to determine if the current node
 * should be filtered or accepted.
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return true if the node should be accepted, false otherwise.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final boolean executePredicates(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  boolean result = true;
  boolean positionAlreadySeen = false;
  int n = getPredicateCount();

  try
  {
    xctxt.pushSubContextList(this);

    for (int i = 0; i < n; i++)
    {
      xctxt.pushPredicatePos(i);

      try
      {
        XObject pred = m_predicates[i].execute(xctxt);

        try
        {
          if (XObject.CLASS_NUMBER == pred.getType())
          {
            int pos = (int) pred.num();

            if (positionAlreadySeen)
            {
              result = (pos == 1);

              break;
            }
            else
            {
              positionAlreadySeen = true;

              if (!checkProximityPosition(xctxt, i, dtm, currentNode, pos))
              {
                result = false;

                break;
              }
            }

          }
          else if (!pred.boolWithSideEffects())
          {
            result = false;

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

  return result;
}
 

/**
 * Execute the predicates on this step to determine if the current node
 * should be filtered or accepted.
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return true if the node should be accepted, false otherwise.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final boolean executePredicates(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  boolean result = true;
  boolean positionAlreadySeen = false;
  int n = getPredicateCount();

  try
  {
    xctxt.pushSubContextList(this);

    for (int i = 0; i < n; i++)
    {
      xctxt.pushPredicatePos(i);

      try
      {
        XObject pred = m_predicates[i].execute(xctxt);

        try
        {
          if (XObject.CLASS_NUMBER == pred.getType())
          {
            int pos = (int) pred.num();

            if (positionAlreadySeen)
            {
              result = (pos == 1);

              break;
            }
            else
            {
              positionAlreadySeen = true;

              if (!checkProximityPosition(xctxt, i, dtm, currentNode, pos))
              {
                result = false;

                break;
              }
            }

          }
          else if (!pred.boolWithSideEffects())
          {
            result = false;

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

  return result;
}
 

/**
 * Execute the predicates on this step to determine if the current node
 * should be filtered or accepted.
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return true if the node should be accepted, false otherwise.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final boolean executePredicates(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  boolean result = true;
  boolean positionAlreadySeen = false;
  int n = getPredicateCount();

  try
  {
    xctxt.pushSubContextList(this);

    for (int i = 0; i < n; i++)
    {
      xctxt.pushPredicatePos(i);

      try
      {
        XObject pred = m_predicates[i].execute(xctxt);

        try
        {
          if (XObject.CLASS_NUMBER == pred.getType())
          {
            int pos = (int) pred.num();

            if (positionAlreadySeen)
            {
              result = (pos == 1);

              break;
            }
            else
            {
              positionAlreadySeen = true;

              if (!checkProximityPosition(xctxt, i, dtm, currentNode, pos))
              {
                result = false;

                break;
              }
            }

          }
          else if (!pred.boolWithSideEffects())
          {
            result = false;

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

  return result;
}
 

/**
 * Execute the predicates on this step to determine if the current node
 * should be filtered or accepted.
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return true if the node should be accepted, false otherwise.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final boolean executePredicates(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  boolean result = true;
  boolean positionAlreadySeen = false;
  int n = getPredicateCount();

  try
  {
    xctxt.pushSubContextList(this);

    for (int i = 0; i < n; i++)
    {
      xctxt.pushPredicatePos(i);

      try
      {
        XObject pred = m_predicates[i].execute(xctxt);

        try
        {
          if (XObject.CLASS_NUMBER == pred.getType())
          {
            int pos = (int) pred.num();

            if (positionAlreadySeen)
            {
              result = (pos == 1);

              break;
            }
            else
            {
              positionAlreadySeen = true;

              if (!checkProximityPosition(xctxt, i, dtm, currentNode, pos))
              {
                result = false;

                break;
              }
            }

          }
          else if (!pred.boolWithSideEffects())
          {
            result = false;

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

  return result;
}
 

/**
 * 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);
}
 

/**
 * Execute the predicates on this step to determine if the current node
 * should be filtered or accepted.
 *
 * @param xctxt The XPath runtime context.
 * @param dtm The DTM of the current node.
 * @param currentNode The current node context.
 *
 * @return true if the node should be accepted, false otherwise.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected final boolean executePredicates(
        XPathContext xctxt, DTM dtm, int currentNode)
          throws javax.xml.transform.TransformerException
{

  boolean result = true;
  boolean positionAlreadySeen = false;
  int n = getPredicateCount();

  try
  {
    xctxt.pushSubContextList(this);

    for (int i = 0; i < n; i++)
    {
      xctxt.pushPredicatePos(i);

      try
      {
        XObject pred = m_predicates[i].execute(xctxt);

        try
        {
          if (XObject.CLASS_NUMBER == pred.getType())
          {
            int pos = (int) pred.num();

            if (positionAlreadySeen)
            {
              result = (pos == 1);

              break;
            }
            else
            {
              positionAlreadySeen = true;

              if (!checkProximityPosition(xctxt, i, dtm, currentNode, pos))
              {
                result = false;

                break;
              }
            }

          }
          else if (!pred.boolWithSideEffects())
          {
            result = false;

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

  return result;
}
 

/**
 * 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);
}
 

/**
 * Execute an expression in the XPath runtime context, and return the
 * result of the expression.
 *
 *
 * @param xctxt The XPath runtime context.
 * NEEDSDOC @param handler
 *
 * @return The result of the expression in the form of a <code>XObject</code>.
 *
 * @throws javax.xml.transform.TransformerException if a runtime exception
 *         occurs.
 * @throws org.xml.sax.SAXException
 */
public void executeCharsToContentHandler(
        XPathContext xctxt, ContentHandler handler)
          throws javax.xml.transform.TransformerException,
                 org.xml.sax.SAXException
{

  XObject obj = execute(xctxt);

  obj.dispatchCharactersEvents(handler);
  obj.detach();
}