javax.xml.xpath.XPathFunction |
XPathFunction
provides access to XPath functions.
Functions are identified by QName and arity in XPath.
Public Methods | |||||||||||
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Evaluate the function with the specified arguments. |
Evaluate the function with the specified arguments.
To the greatest extent possible, side-effects should be avoided in the definition of extension functions. The implementation evaluating an XPath expression is under no obligation to call extension functions in any particular order or any particular number of times.
args |
The arguments,
null
is a valid value.
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XPath
function as an
Object
.
XPathFunctionException |
If
args
cannot be evaluated with this
XPath
function.
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