org.ucl.xpath.function
Class FnRoundHalfToEven

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

public class FnRoundHalfToEven

extends Function

The value returned is the nearest (that is, numerically closest) numeric to $arg that is a multiple of ten to the power of minus $precision. If two such values are equally near (e.g. if the fractional part in $arg is exactly .500...), returns the one whose least significant digit is even. 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

FnRoundHalfToEven()
Constructor for FnRoundHalfToEven.

Method Summary

ResultSequence	evaluate(java.util.Collection args) Evaluate arguments.
static ResultSequence	fn_round_half_to_even(ResultSequence arg) Round-Half-to-Even 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

FnRoundHalfToEven

public FnRoundHalfToEven()

Constructor for FnRoundHalfToEven.

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_half_to_even

public static ResultSequence fn_round_half_to_even(ResultSequence arg)
                                            throws DynamicError

Round-Half-to-Even operation.

Parameters:

arg - Result from the expressions evaluation.

Returns:

Result of fn:round-half-to-even operation.

Throws:

DynamicError - Dynamic error.