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java.lang.Objectorg.apache.xpath.Expression
org.apache.xpath.operations.UnaryOperation
org.apache.xpath.operations.Number
The 'number()' operation expression executer.
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 org.apache.xpath.operations.UnaryOperation |
callVisitors, canTraverseOutsideSubtree, deepEquals, execute, fixupVariables, getExpression, getOperand, setExpression, setRight |
Methods inherited from class org.apache.xpath.Expression |
asIterator, asIteratorRaw, asNode, assertion, bool, error, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, warn, xstr |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public Number()
Method Detail |
public XObject operate(XObject right) throws TransformerException
operate
in class UnaryOperation
right
- non-null reference to the evaluated right operand.
TransformerException
public double num(XPathContext xctxt) throws TransformerException
num
in class Expression
xctxt
- The runtime execution context.
TransformerException
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