org.salespointframework.core.data
Class DoubleValue

java.lang.Object
  org.salespointframework.core.data.NumberValue
      org.salespointframework.core.data.DoubleValue

All Implemented Interfaces:

java.lang.Cloneable, java.lang.Comparable<Value>, Value

public class DoubleValue
extends NumberValue

A NumberValue that is based on a Double object.

All operations are implemented as one might expect.

Since:

v2.0

Version:

2.0 19/08/1999

Author:

Steffen Zschaler

Constructor Summary

DoubleValue(double dlValue)
Create a new DoubleValue.

DoubleValue(java.lang.Number nbValue)
Create a new DoubleValue.

Method Summary

Value	add(Value v) Add the given value to this one, and return the result.
void	addAccumulating(Value v) Add the given value to this one, changing this value.
java.lang.Object	clone() Clone this value.
int	compareTo(Value v) Compare this value to the given one.
Value	divide(Value v) Divide this value by the given one, and return the result.
void	divideAccumulating(Value v) Divide this value by the given one, changing this value.
boolean	isAddZero() Correctly checks getValue().doubleValue().
boolean	isMulOne() Correctly checks getValue().doubleValue().
Value	multiply(double dl) Multiply this value by the given 'scalar', and return the result.
Value	multiply(float fl) Multiply this value by the given 'scalar', and return the result.
Value	multiply(int n) Multiply this value by the given 'scalar', and return the result.
Value	multiply(long l) Multiply this value by the given 'scalar', and return the result.
Value	multiply(Value v) Multiply this value by the given one, and return the result.
void	multiplyAccumulating(double dl) Multiply this value by the given 'scalar', changing this value.
void	multiplyAccumulating(float fl) Multiply this value by the given 'scalar', changing this value.
void	multiplyAccumulating(int n) Multiply this value by the given 'scalar', changing this value.
void	multiplyAccumulating(long l) Multiply this value by the given 'scalar', changing this value.
void	multiplyAccumulating(Value v) Multiply the given value by this one, changing this value.
void	setValue(java.lang.Number nbValue) Convert the given value to a Double before setting the actual value of the object.
Value	subtract(Value v) Subtract the given value from this one, and return the result.
void	subtractAccumulating(Value v) Subtract the given value from this one, changing this value.

Methods inherited from class org.salespointframework.core.data.NumberValue

getValue, isGreaterZero, isLessZero, isMulZero, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleValue

public DoubleValue(java.lang.Number nbValue)

Create a new DoubleValue.

Parameters:

nbValue - the initial value of the object. Will be converted to a Double.

DoubleValue

public DoubleValue(double dlValue)

Create a new DoubleValue.

Parameters:

dlValue - the initial value of the object.

Method Detail

setValue

public void setValue(java.lang.Number nbValue)

Convert the given value to a Double before setting the actual value of the object.

Overrides:

setValue in class NumberValue

Parameters:

nbValue - the new actual value.

addAccumulating

public void addAccumulating(Value v)

Description copied from interface: Value

Add the given value to this one, changing this value.

Parameters:

v - the value to be added.

subtractAccumulating

public void subtractAccumulating(Value v)

Description copied from interface: Value

Subtract the given value from this one, changing this value.

Parameters:

v - the value to be subtracted.

multiplyAccumulating

public void multiplyAccumulating(Value v)

Description copied from interface: Value

Multiply the given value by this one, changing this value.

Parameters:

v - the value to be multplied by.

multiplyAccumulating

public void multiplyAccumulating(double dl)

Description copied from interface: Value

Multiply this value by the given 'scalar', changing this value.

Parameters:

dl - the value by which to multiply.

multiplyAccumulating

public void multiplyAccumulating(float fl)

Description copied from interface: Value

Multiply this value by the given 'scalar', changing this value.

Parameters:

fl - the value by which to multiply.

multiplyAccumulating

public void multiplyAccumulating(long l)

Description copied from interface: Value

Multiply this value by the given 'scalar', changing this value.

Parameters:

l - the value by which to multiply.

multiplyAccumulating

public void multiplyAccumulating(int n)

Description copied from interface: Value

Multiply this value by the given 'scalar', changing this value.

Parameters:

n - the value by which to multiply.

divideAccumulating

public void divideAccumulating(Value v)

Description copied from interface: Value

Divide this value by the given one, changing this value.

Parameters:

v - the value by which to divide.

add

public Value add(Value v)

Description copied from interface: Value

Add the given value to this one, and return the result.

Parameters:

v - the value to be added.

subtract

public Value subtract(Value v)

Description copied from interface: Value

Subtract the given value from this one, and return the result.

Parameters:

v - the value to be subtracted.

multiply

public Value multiply(Value v)

Description copied from interface: Value

Multiply this value by the given one, and return the result.

Parameters:

v - the value by which to multiply.

multiply

public Value multiply(double dl)

Description copied from interface: Value

Multiply this value by the given 'scalar', and return the result.

Parameters:

dl - the 'scalar' by which to multiply.

multiply

public Value multiply(float fl)

Description copied from interface: Value

Multiply this value by the given 'scalar', and return the result.

Parameters:

fl - the 'scalar' by which to multiply.

multiply

public Value multiply(long l)

Description copied from interface: Value

Multiply this value by the given 'scalar', and return the result.

Parameters:

l - the 'scalar' by which to multiply.

multiply

public Value multiply(int n)

Description copied from interface: Value

Multiply this value by the given 'scalar', and return the result.

Parameters:

n - the 'scalar' by which to multiply.

divide

public Value divide(Value v)

Description copied from interface: Value

Divide this value by the given one, and return the result.

Parameters:

v - the value by which to divide.

compareTo

public int compareTo(Value v)

Compare this value to the given one.

Throws:

java.lang.ClassCastException - if the given object cannot be casted into a NumberValue.

clone

public java.lang.Object clone()

Description copied from interface: Value

Clone this value.

Specified by:

clone in interface Value

Specified by:

clone in class NumberValue

isAddZero

public boolean isAddZero()

Correctly checks getValue().doubleValue().

Specified by:

isAddZero in interface Value

Overrides:

isAddZero in class NumberValue

Returns:

true if this is the zero element with respect to addition, i.e. if for any value v: (v.getClass() == this.getClass()) -> ((v.add (this).equals (v)) && (this.add (v).equals (v))).

isMulOne

public boolean isMulOne()

Correctly checks getValue().doubleValue().

Specified by:

isMulOne in interface Value

Overrides:

isMulOne in class NumberValue

Returns:

true if this is the one element with respect to multiplication, i.e. if for any value v: (v.getClass() == this.getClass()) -> ((v.multiply (this).equals (v)) && (this.multiply (v).equals (v))).