Module org.tentackle.common

Package org.tentackle.common

Class BMoney

java.lang.Object

java.lang.Number

java.math.BigDecimal

org.tentackle.common.BMoney

All Implemented Interfaces:

Serializable, Cloneable, Comparable<BigDecimal>

Direct Known Subclasses:

DMoney

public class BMoney
extends BigDecimal
implements Cloneable

Money value derived from BigDecimal.
A money value has a distinct and fixed scale that cannot change.

Author:

harald

See Also:

Serialized Form

Field Summary

Fields inherited from class java.math.BigDecimal

ONE, ROUND_CEILING, ROUND_DOWN, ROUND_FLOOR, ROUND_HALF_DOWN, ROUND_HALF_EVEN, ROUND_HALF_UP, ROUND_UNNECESSARY, ROUND_UP, TEN, ZERO

Constructor Summary

Constructors

Constructor	Description
BMoney()	Creates a zero BMoney with a scale according to the currency of the current locale.
BMoney(double val, int scale)	Creates a BMoney value.
BMoney(int scale)	Creates a zero BMoney value.
BMoney(String val, int scale)	Creates a BMoney value.
BMoney(BigDecimal val)	Creates a BMoney from a BigDecimal (userful for SQL)
BMoney(BigInteger intVal, int scale)	Creates a BMoney value from a BigInteger. The scale sets the comma within the given integer.
BMoney(BMoney val, int scale)	Creates a BMoney from a BMoney (useful to rescale)

Method Summary

Modifier and Type	Method	Description
BMoney	absolute()	Gets the absolute value.
BMoney	add(BMoney val)	Adds a BMoney to this value and returns a new object.
protected BMoney	alignScale(BMoney val)	Check the scale of the given money value.
BMoney	clone()	Clones a BMoney value.
BMoney	divide(double val)	Divides a BMoney by double and returns a new object.
double	divide(BMoney val)	Divides a BMoney by this value and returns a new object.
BMoney	invert()	Inverts this money value.
boolean	isNegative()	Checks if this money value is negative.
boolean	isPositive()	Checks if this money value is positive.
boolean	isZero()	Checks if this money value is zero.
BMoney	multiply(double val)	Multiplies this BMoney by a double and returns a new object.
BMoney	smallestPositive()	Returns the smalles positive value. Ex.: if scale is 2 --> 0.01 will be returned.
BMoney	subtract(BMoney val)	Subtracts a BMoney from this value and returns a new object.
String	toWords()	Converts a money value to a string of digits as words. The digits after the comma are ignored.

Methods inherited from class java.math.BigDecimal

abs, abs, add, add, byteValueExact, compareTo, divide, divide, divide, divide, divide, divide, divideAndRemainder, divideAndRemainder, divideToIntegralValue, divideToIntegralValue, doubleValue, equals, floatValue, hashCode, intValue, intValueExact, longValue, longValueExact, max, min, movePointLeft, movePointRight, multiply, multiply, negate, negate, plus, plus, pow, pow, precision, remainder, remainder, round, scale, scaleByPowerOfTen, setScale, setScale, setScale, shortValueExact, signum, sqrt, stripTrailingZeros, subtract, subtract, toBigInteger, toBigIntegerExact, toEngineeringString, toPlainString, toString, ulp, unscaledValue, valueOf, valueOf, valueOf

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BMoney

public BMoney(double val,
              int scale)

Creates a BMoney value.

Parameters:

val - double-representation of the number

scale - the digits after comma the value should be rounded to

BMoney

public BMoney(String val,
              int scale)

Creates a BMoney value.

Parameters:

val - the string

scale - the digits after comma the value should be rounded to

BMoney

public BMoney(int scale)

Creates a zero BMoney value.

Parameters:

scale - the digits after comma

BMoney

public BMoney(BigInteger intVal,
              int scale)

Creates a BMoney value from a BigInteger.
The scale sets the comma within the given integer.

Parameters:

intVal - the big integer

scale - the digits after comma

BMoney

public BMoney(BMoney val,
              int scale)

Creates a BMoney from a BMoney (useful to rescale)

Parameters:

val - the BMoney value

scale - the digits after comma the value should be rounded to

BMoney

public BMoney(BigDecimal val)

Creates a BMoney from a BigDecimal (userful for SQL)

Parameters:

val - the decimal value

BMoney

public BMoney()

Creates a zero BMoney with a scale according to the currency of the current locale.

Method Detail

clone

public BMoney clone()

Clones a BMoney value.

Overrides:

clone in class Object

isNegative

public boolean isNegative()

Checks if this money value is negative.

Returns:

true if number is negative

isPositive

public boolean isPositive()

Checks if this money value is positive.

Returns:

true if number is positive

isZero

public boolean isZero()

Checks if this money value is zero.

Returns:

true if number is zero

add

public BMoney add(BMoney val)

Adds a BMoney to this value and returns a new object. This object remains unchanged.

Parameters:

val - the money value to add

Returns:

the sum of this and given value

subtract

public BMoney subtract(BMoney val)

Subtracts a BMoney from this value and returns a new object. This object remains unchanged.

Parameters:

val - the money value to subtract

Returns:

this minus the given value

multiply

public BMoney multiply(double val)

Multiplies this BMoney by a double and returns a new object. This object remains unchanged.

Parameters:

val - the double to multiply with

Returns:

the product of this and given value

divide

public double divide(BMoney val)

Divides a BMoney by this value and returns a new object. This object remains unchanged.

Parameters:

val - the money value to multiply

Returns:

the quotient of this and given value

divide

public BMoney divide(double val)

Divides a BMoney by double and returns a new object. This object remains unchanged.

Parameters:

val - the value to divide this BMoney by

Returns:

the quotient of this and given value

invert

public BMoney invert()

Inverts this money value.

Returns:

the negated money value

absolute

public BMoney absolute()

Gets the absolute value.

Returns:

the absolute (positive) value

smallestPositive

public BMoney smallestPositive()

Returns the smalles positive value.
Ex.: if scale is 2 --> 0.01 will be returned.

Returns:

the smalles positive value

toWords

public String toWords()

Converts a money value to a string of digits as words.
The digits after the comma are ignored. Nice to print checks.

 Example: 234,77 will become "two three four"
 

Returns:

the value as a words

alignScale

protected BMoney alignScale(BMoney val)

Check the scale of the given money value. If it does not match the scale of this object, scale it to the current scale of this object.

Parameters:

val - the value to be checked

Returns:

the re-scaled value or the value itself if no rescaling necessary