org.apache.xpath.operations
Class Neg

java.lang.Object
  |
  +--org.apache.xpath.Expression
        |
        +--org.apache.xpath.operations.UnaryOperation
              |
              +--org.apache.xpath.operations.Neg

public class Neg

extends UnaryOperation

The unary '-' operation expression executer.

See Also:

Serialized Form

Constructor Summary

Neg()

Method Summary

XObject

operate(XObject right) Apply the operation to two operands, and return the result.

Methods inherited from class org.apache.xpath.operations.UnaryOperation

canTraverseOutsideSubtree, execute, setRight

Methods inherited from class org.apache.xpath.Expression

assertion, error, setSourceLocator, warn

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Neg

public Neg()

Method Detail

operate

public XObject operate(XObject right)
                throws 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:

TransformerException -

Overrides:

operate in class UnaryOperation