Package com.singularsys.extensions.field.implementations

Class SimpleNumberFactory

java.lang.Object

com.singularsys.extensions.field.implementations.SimpleNumberFactory

All Implemented Interfaces:

JepComponent, NumberFactory, Serializable

Direct Known Subclasses:

ComplexNumberFactory, RationalNumberFactory

public abstract class SimpleNumberFactory
extends Object
implements NumberFactory

A simplified base number factory class. Just one method createNumber(String value) needs to be implemented other methods convert their arguments to strings and call that method.

Author:

Richard Morris

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SimpleNumberFactory()	Default constructor calls createNumber("1") etc.
SimpleNumberFactory(Object minusone, Object zero, Object one, Object two)	Constructor where known constants are specified.

Method Summary

Modifier and Type	Method	Description
Object	createNumber(boolean value)	Create a number object with given boolean value
Object	createNumber(double value)	Creates a number object with given double value.
Object	createNumber(float value)	Create a number object with given float value
Object	createNumber(int value)	Create a number object with given int value
Object	createNumber(long value)	Create a number object with given long value
Object	createNumber(short value)	Create a number object with given short value
Object	createNumber(Complex value)	Creates a number from a given complex value.
Object	createNumber(Number value)	Creates a number object from a class implementing Number, May actually just return the class.
abstract Object	createNumber(String value)	Creates a number object and initializes its value.
JepComponent	getLightWeightInstance()	Returns this.
Object	getMinusOne()	Return an object representing ZERO-ONE.
Object	getOne()	Return an object representing ONE the multiplicative identity.
Object	getTwo()	Return an object representing ONE+ONE.
Object	getZero()	Return an object representing ZERO the additive identity.
void	init(Jep jep)	Initialize the component.

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleNumberFactory

public SimpleNumberFactory()
                    throws ParseException

Default constructor calls createNumber("1") etc.

Throws:

ParseException

SimpleNumberFactory

public SimpleNumberFactory(Object minusone,
 Object zero,
 Object one,
 Object two)

Constructor where known constants are specified.

Parameters:

minusone -

zero -

one -

two -

Method Details

createNumber

public abstract Object createNumber(String value)
                             throws ParseException

Description copied from interface: NumberFactory

Creates a number object and initializes its value.

Specified by:

createNumber in interface NumberFactory

Parameters:

value - The initial value of the number as a string.

Throws:

ParseException

createNumber

public Object createNumber(double value)
                    throws ParseException

Description copied from interface: NumberFactory

Creates a number object with given double value.

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(int value)
                    throws ParseException

Description copied from interface: NumberFactory

Create a number object with given int value

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(short value)
                    throws ParseException

Description copied from interface: NumberFactory

Create a number object with given short value

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(long value)
                    throws ParseException

Description copied from interface: NumberFactory

Create a number object with given long value

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(float value)
                    throws ParseException

Description copied from interface: NumberFactory

Create a number object with given float value

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(boolean value)
                    throws ParseException

Description copied from interface: NumberFactory

Create a number object with given boolean value

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(Number value)
                    throws ParseException

Description copied from interface: NumberFactory

Creates a number object from a class implementing Number, May actually just return the class.

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

createNumber

public Object createNumber(Complex value)
                    throws ParseException

Description copied from interface: NumberFactory

Creates a number from a given complex value.

Specified by:

createNumber in interface NumberFactory

Throws:

ParseException

getLightWeightInstance

public JepComponent getLightWeightInstance()

Returns this.

Specified by:

getLightWeightInstance in interface JepComponent

Returns:

either a new instance, null or 'this'.

init

public void init(Jep jep)

Description copied from interface: JepComponent

Initialize the component. This method is called whenever a component is added to Jep. Hence, it allows components to keep track of the other components they may rely on.

Specified by:

init in interface JepComponent

Parameters:

jep - the current Jep instance

getMinusOne

public Object getMinusOne()

Description copied from interface: NumberFactory

Return an object representing ZERO-ONE.

Specified by:

getMinusOne in interface NumberFactory

getOne

public Object getOne()

Description copied from interface: NumberFactory

Return an object representing ONE the multiplicative identity.

Specified by:

getOne in interface NumberFactory

getTwo

public Object getTwo()

Description copied from interface: NumberFactory

Return an object representing ONE+ONE.

Specified by:

getTwo in interface NumberFactory

getZero

public Object getZero()

Description copied from interface: NumberFactory

Return an object representing ZERO the additive identity.

Specified by:

getZero in interface NumberFactory