org.pentaho.reporting.libraries.formula.util
Class NumberUtil

java.lang.Object
  org.pentaho.reporting.libraries.formula.util.NumberUtil

public class NumberUtil
extends Object

Field Summary

static BigDecimal	DELTA
static BigDecimal	INT_TEST_DELTA

Method Summary

static BigDecimal	divide(BigDecimal bd1, BigDecimal bd2)
static BigDecimal	getAsBigDecimal(Number number)
static BigDecimal	performIntRounding(BigDecimal n) Performs a rounding to get a more reliable (int) cast.
static BigDecimal	performTuneRounding(BigDecimal n)
static BigDecimal	removeTrailingZeros(BigDecimal bd)

Methods inherited from class java.lang.Object

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

Field Detail

DELTA

public static final BigDecimal DELTA

INT_TEST_DELTA

public static final BigDecimal INT_TEST_DELTA

Method Detail

getAsBigDecimal

public static BigDecimal getAsBigDecimal(Number number)

performIntRounding

public static BigDecimal performIntRounding(BigDecimal n)

Performs a rounding to get a more reliable (int) cast. This makes sure that nearly exact values like 0.9999999..9999 are correctly interpreted as 1 while exact values like 0.99 are interpreted as 0.

Parameters:

n -

Returns:

performTuneRounding

public static BigDecimal performTuneRounding(BigDecimal n)

removeTrailingZeros

public static BigDecimal removeTrailingZeros(BigDecimal bd)

divide

public static BigDecimal divide(BigDecimal bd1,
                                BigDecimal bd2)
                         throws EvaluationException

Throws:

EvaluationException