org.ucl.xpath.function
Class FnRound

java.lang.Object
  org.ucl.xpath.function.Function
      org.ucl.xpath.function.FnRound

public class FnRound

extends Function

Returns the number with no fractional part that is closest to the argument. If there are two such numbers, then the one that is closest to positive infinity is returned. More formally, fn:round(x) produces the same result as fn:floor(x+0.5). If type of $arg is one of the four numeric types xs:float, xs:double, xs:decimal or xs:integer the type of the return is the same as the type of $arg. If the type of $arg is a type derived from one of the numeric types, the type of the return is the base numeric type.

Field Summary

Fields inherited from class org.ucl.xpath.function.Function

_arity, _fl, _name

Constructor Summary

FnRound()
Constructor for FnRound.

Method Summary

ResultSequence	evaluate(java.util.Collection args) Evaluate arguments.
static ResultSequence	fn_round(ResultSequence arg) Round operation.

Methods inherited from class org.ucl.xpath.function.Function

arity, convert_argument, convert_arguments, dynamic_context, name, set_function_library, signature, signature, signature, static_context

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FnRound

public FnRound()

Constructor for FnRound.

Method Detail

evaluate

public ResultSequence evaluate(java.util.Collection args)
                        throws DynamicError

Evaluate arguments.

Specified by:

evaluate in class Function

Parameters:

args - argument expressions.

Returns:

Result of evaluation.

Throws:

DynamicError - Dynamic error.

fn_round

public static ResultSequence fn_round(ResultSequence arg)
                               throws DynamicError

Round operation.

Parameters:

arg - Result from the expressions evaluation.

Returns:

Result of fn:round operation.

Throws:

DynamicError - Dynamic error.