org.salespointframework.core.data
Class NumberValue

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

All Implemented Interfaces:

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

Direct Known Subclasses:

DoubleValue, IntegerValue

public abstract class NumberValue
extends java.lang.Object
implements Value

Values that operate on numbers.

All the operations are implemented as you would expect, the implementation is given in concrete subclasses.

Since:

v2.0

Version:

2.0 19/08/1999

Author:

Steffen Zschaler

Field Summary

private java.lang.Number

m_nbValue The actual value.

Constructor Summary

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

Method Summary

abstract java.lang.Object	clone() Clone this value.
java.lang.Number	getValue() Get the actual value of the object.
boolean	isAddZero() Check whether this is the zero element with respect to addition.
boolean	isGreaterZero()
boolean	isLessZero()
boolean	isMulOne() Check whether this is the one element with respect to multiplication.
boolean	isMulZero() Check whether this is the zero element with respect to multiplication.
void	setValue(java.lang.Number nbValue) Set the actual value of the object.
java.lang.String	toString() Return a String representation of the object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.salespointframework.core.data.interfaces.Value

add, addAccumulating, divide, divideAccumulating, multiply, multiply, multiply, multiply, multiply, multiplyAccumulating, multiplyAccumulating, multiplyAccumulating, multiplyAccumulating, multiplyAccumulating, subtract, subtractAccumulating

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

m_nbValue

private java.lang.Number m_nbValue

The actual value.

Constructor Detail

NumberValue

public NumberValue(java.lang.Number nbValue)

Create a new NumberValue.

Parameters:

nbValue - the actual initial value.

Method Detail

setValue

public void setValue(java.lang.Number nbValue)

Set the actual value of the object.

Parameters:

nbValue - the new actual value.

getValue

public java.lang.Number getValue()

Get the actual value of the object.

isAddZero

public boolean isAddZero()

Description copied from interface: Value

Check whether this is the zero element with respect to addition.

Specified by:

isAddZero in interface Value

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))).

isGreaterZero

public boolean isGreaterZero()

isLessZero

public boolean isLessZero()

isMulZero

public boolean isMulZero()

Description copied from interface: Value

Check whether this is the zero element with respect to multiplication.

Specified by:

isMulZero in interface Value

Returns:

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

isMulOne

public boolean isMulOne()

Description copied from interface: Value

Check whether this is the one element with respect to multiplication.

Specified by:

isMulOne in interface Value

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))).

clone

public abstract java.lang.Object clone()

Description copied from interface: Value

Clone this value.

Specified by:

clone in interface Value

Overrides:

clone in class java.lang.Object

toString

public java.lang.String toString()

Return a String representation of the object.

Overrides:

toString in class java.lang.Object