weblogic.apache.xpath.operations
Class Number

java.lang.Object
  |
  +--weblogic.apache.xpath.Expression
        |
        +--weblogic.apache.xpath.operations.UnaryOperation
              |
              +--weblogic.apache.xpath.operations.Number

public class Number

extends UnaryOperation

The 'number()' operation expression executer.

This class is based on an implementation from the Apache XML Project. In future releases the XML parser, XSLT processor, and associated classes will likely be updated to be based on a later version of the Apache implementations. Since Apache does not guarantee backwards compatibility between versions of their software, we cannot guarantee backwards compatibility of any of the classes contained in the weblogic.apache package or sub-packages.

See Also:

Serialized Form

Fields inherited from class weblogic.apache.xpath.operations.UnaryOperation

m_right

Fields inherited from class weblogic.apache.xpath.Expression

m_slocator

Constructor Summary

Number()

Method Summary

double	num(XPathContext xctxt) Evaluate this operation directly to a double.
XObject	operate(XObject right) Apply the operation to two operands, and return the result.

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

canTraverseOutsideSubtree, execute, fixupVariables, getOperand, setRight

Methods inherited from class weblogic.apache.xpath.Expression

asIterator, asNode, assertion, bool, error, execute, execute, executeCharsToContentHandler, isNodesetExpr, isStableNumber, setSourceLocator, warn, xstr

Methods inherited from class java.lang.Object

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

Constructor Detail

Number

public Number()

Method Detail

operate

public 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 -

Overrides:

operate in class UnaryOperation

num

public double num(XPathContext xctxt)
           throws javax.xml.transform.TransformerException

Evaluate this operation directly to a double.

Parameters:

xctxt - The runtime execution context.

Returns:

The result of the operation as a double.

Throws:

javax.xml.transform.TransformerException -

Overrides:

num in class Expression