org.jaxen.function
public class RoundFunction extends Object implements Function
4.4 number round(number)
The round function returns the number that is closest to the argument and that is an integer. If there are two such numbers, then the one that is closest to positive infinity is returned. If the argument is NaN, then NaN is returned. If the argument is positive infinity, then positive infinity is returned. If the argument is negative infinity, then negative infinity is returned. If the argument is positive zero, then positive zero is returned. If the argument is negative zero, then negative zero is returned. If the argument is less than zero, but greater than or equal to -0.5, then negative zero is returned.
See Also: Section 4.4 of the XPath Specification
Constructor Summary | |
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RoundFunction()
Create a new RoundFunction object. |
Method Summary | |
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Object | call(Context context, List args) Returns the nearest integer to the number.
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static Double | evaluate(Object obj, Navigator nav)
Returns the integer nearest to the argument.
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RoundFunction
object.Parameters: context the context at the point in the
expression when the function is called args a list with exactly one item which will be converted to a
Double
as if by the XPath number()
function
Returns: a Double
containing the integer nearest to
args.get(0)
Throws: FunctionCallException if args
has more or less than one item
Double
as if by the XPath number()
function.
Parameters: obj the object to be rounded nav ignored
Returns: the integer nearest to obj