Execute the function. The function must return
a valid object.
Parameters: xctxt - The current execution context. A valid XObject. throws: javax.xml.transform.TransformerException -
The function table is an instance field. In order to access this instance
field during evaluation, this method is called at compilation time to
insert function table information for later usage. It should only be used
during compiling of XPath expressions.
Parameters: aTable - an instance of the function table
Fields inherited from org.apache.xpath.functions.FunctionOneArg