Java Doc for Operation.java in  » XML » xalan » org » apache » xpath » operations » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML » xalan » org.apache.xpath.operations   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.xpath.Expression       org.apache.xpath.operations.Operation All known Subclasses:   org.apache.xpath.operations.Quo,  org.apache.xpath.operations.Gte,  org.apache.xpath.operations.NotEquals,  org.apache.xpath.operations.Lte,  org.apache.xpath.operations.And,  org.apache.xpath.operations.Equals,  org.apache.xpath.operations.Lt,  org.apache.xpath.operations.Mod,  org.apache.xpath.operations.Mult,  org.apache.xpath.operations.Minus,  org.apache.xpath.operations.Or,  org.apache.xpath.operations.Plus,  org.apache.xpath.operations.Div,  org.apache.xpath.operations.Gt, Operation public class Operation extends Expression implements ExpressionOwner(Code) The baseclass for a binary operation. Inner Class :class LeftExprOwner implements ExpressionOwner Field Summary protected  Expression m_left      The left operand expression. protected  Expression m_right      The right operand expression. final static  long serialVersionUID      Method Summary public  void callVisitors(ExpressionOwner owner, XPathVisitor visitor)      public  boolean canTraverseOutsideSubtree()      Tell if this expression or it's subexpressions can traverse outside the current subtree. public  boolean deepEquals(Expression expr)      public  XObject execute(XPathContext xctxt)      Execute a binary operation by calling execute on each of the operands, and then calling the operate method on the derived class. Parameters:   xctxt - The runtime execution context. public  void fixupVariables(java.util.Vector vars, int globalsSize)      This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time. Parameters:   vars - List of QNames that correspond to variables. public  Expression getExpression()      public  Expression getLeftOperand()      public  Expression getRightOperand()      public  XObject operate(XObject left, XObject right)      Apply the operation to two operands, and return the result. Parameters:   left - non-null reference to the evaluated left operand. Parameters:   right - non-null reference to the evaluated right operand. public  void setExpression(Expression exp)      public  void setLeftRight(Expression l, Expression r)      Set the left and right operand expressions for this operation. Field Detail m_left protected Expression m_left(Code) The left operand expression. m_right protected Expression m_right(Code) The right operand expression. serialVersionUID final static long serialVersionUID(Code) Method Detail callVisitors public void callVisitors(ExpressionOwner owner, XPathVisitor visitor)(Code) See Also:   org.apache.xpath.XPathVisitable.callVisitors(ExpressionOwnerXPathVisitor) canTraverseOutsideSubtree public boolean canTraverseOutsideSubtree()(Code) Tell if this expression or it's subexpressions can traverse outside the current subtree. true if traversal outside the context node's subtree can occur. deepEquals public boolean deepEquals(Expression expr)(Code) See Also:   Expression.deepEquals(Expression) execute public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code) Execute a binary operation by calling execute on each of the operands, and then calling the operate method on the derived class. Parameters:   xctxt - The runtime execution context. The XObject result of the operation. throws:   javax.xml.transform.TransformerException - fixupVariables public void fixupVariables(java.util.Vector vars, int globalsSize)(Code) This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time. Parameters:   vars - List of QNames that correspond to variables. This list should be searched backwards for the first qualified name that corresponds to the variable reference qname. The position of the QName in the vector from the start of the vector will be its position in the stack frame (but variables above the globalsTop value will need to be offset to the current stack frame). getExpression public Expression getExpression()(Code) See Also:   ExpressionOwner.getExpression getLeftOperand public Expression getLeftOperand()(Code) the left operand of binary operation, as an Expression. getRightOperand public Expression getRightOperand()(Code) the right operand of binary operation, as an Expression. operate public XObject operate(XObject left, XObject right) throws javax.xml.transform.TransformerException(Code) Apply the operation to two operands, and return the result. Parameters:   left - non-null reference to the evaluated left operand. Parameters:   right - non-null reference to the evaluated right operand. non-null reference to the XObject that represents the result of the operation. throws:   javax.xml.transform.TransformerException - setExpression public void setExpression(Expression exp)(Code) See Also:   ExpressionOwner.setExpression(Expression) setLeftRight public void setLeftRight(Expression l, Expression r)(Code) Set the left and right operand expressions for this operation. Parameters:   l - The left expression operand. Parameters:   r - The right expression operand. Methods inherited from org.apache.xpath.Expression public DTMIterator asIterator(XPathContext xctxt, int contextNode) throws javax.xml.transform.TransformerException(Code)(Java Doc) public DTMIterator asIteratorRaw(XPathContext xctxt, int contextNode) throws javax.xml.transform.TransformerException(Code)(Java Doc) public int asNode(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc) public void assertion(boolean b, java.lang.String msg)(Code)(Java Doc) public boolean bool(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc) public boolean canTraverseOutsideSubtree()(Code)(Java Doc) abstract public boolean deepEquals(Expression expr)(Code)(Java Doc) public void error(XPathContext xctxt, String msg, Object[] args) throws javax.xml.transform.TransformerException(Code)(Java Doc) public XObject execute(XPathContext xctxt, int currentNode) throws javax.xml.transform.TransformerException(Code)(Java Doc) public XObject execute(XPathContext xctxt, int currentNode, DTM dtm, int expType) throws javax.xml.transform.TransformerException(Code)(Java Doc) abstract public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc) public XObject execute(XPathContext xctxt, boolean destructiveOK) throws javax.xml.transform.TransformerException(Code)(Java Doc) public void executeCharsToContentHandler(XPathContext xctxt, ContentHandler handler) throws javax.xml.transform.TransformerException, org.xml.sax.SAXException(Code)(Java Doc) public void exprAddChild(ExpressionNode n, int i)(Code)(Java Doc) public ExpressionNode exprGetChild(int i)(Code)(Java Doc) public int exprGetNumChildren()(Code)(Java Doc) public ExpressionNode exprGetParent()(Code)(Java Doc) public void exprSetParent(ExpressionNode n)(Code)(Java Doc) abstract public void fixupVariables(java.util.Vector vars, int globalsSize)(Code)(Java Doc) public int getColumnNumber()(Code)(Java Doc) public ExpressionNode getExpressionOwner()(Code)(Java Doc) public int getLineNumber()(Code)(Java Doc) public String getPublicId()(Code)(Java Doc) public String getSystemId()(Code)(Java Doc) public boolean isNodesetExpr()(Code)(Java Doc) final protected boolean isSameClass(Expression expr)(Code)(Java Doc) public boolean isStableNumber()(Code)(Java Doc) public double num(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc) public void warn(XPathContext xctxt, String msg, Object[] args) throws javax.xml.transform.TransformerException(Code)(Java Doc) public XMLString xstr(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)