public class PositionFunction extends Object implements Function
4.1 number position()
The position function returns a number equal to the context position from the expression evaluation context.
Constructor and Description |
---|
PositionFunction()
Create a new
PositionFunction object. |
public Object call(Context context, List args) throws FunctionCallException
call
in interface Function
context
- the context at the point in the
expression where the function is calledargs
- an empty listDouble
containing the context positionFunctionCallException
- if args
is not emptyContext.getSize()
public static Double evaluate(Context context)
context
- the context at the point in the
expression where the function is calledDouble
containing the context positionContext.getPosition()
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