Class UnaryOperation

    • Constructor Detail

      • UnaryOperation

        public UnaryOperation()
    • Method Detail

      • fixupVariables

        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.
        Specified by:
        fixupVariables in class Expression
        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).
      • canTraverseOutsideSubtree

        public boolean canTraverseOutsideSubtree()
        Tell if this expression or it's subexpressions can traverse outside the current subtree.
        Overrides:
        canTraverseOutsideSubtree in class Expression
        Returns:
        true if traversal outside the context node's subtree can occur.
      • setRight

        public void setRight​(Expression r)
        Set the expression operand for the operation.
        Parameters:
        r - The expression operand to which the unary operation will be applied.
      • execute

        public XObject execute​(XPathContext xctxt)
                        throws javax.xml.transform.TransformerException
        Execute the operand and apply the unary operation to the result.
        Specified by:
        execute in class Expression
        Parameters:
        xctxt - The runtime execution context.
        Returns:
        An XObject that represents the result of applying the unary operation to the evaluated operand.
        Throws:
        javax.xml.transform.TransformerException
      • operate

        public abstract XObject operate​(XObject right)
                                 throws javax.xml.transform.TransformerException
        Apply the operation to two operands, and return the result.
        Parameters:
        right - non-null reference to the evaluated right operand.
        Returns:
        non-null reference to the XObject that represents the result of the operation.
        Throws:
        javax.xml.transform.TransformerException
      • getOperand

        public Expression getOperand()
        Returns:
        the operand of unary operation, as an Expression.
      • deepEquals

        public boolean deepEquals​(Expression expr)
        Description copied from class: Expression
        Compare this object with another object and see if they are equal, include the sub heararchy.
        Specified by:
        deepEquals in class Expression
        Parameters:
        expr - Another expression object.
        Returns:
        true if this objects class and the expr object's class are the same, and the data contained within both objects are considered equal.
        See Also:
        Expression.deepEquals(Expression)