Package com.singularsys.extensions.field.implementations

Class GenericPowerField<E>

java.lang.Object

com.singularsys.extensions.field.implementations.AbstractComparativeField

com.singularsys.extensions.field.implementations.GenericField<E>

com.singularsys.extensions.field.implementations.GenericPowerField<E>

Type Parameters:

E - Basic type field uses, e.g. Double or Complex.

All Implemented Interfaces:

FieldI, IntegerConvertor, java.io.Serializable

Direct Known Subclasses:

ExactIntegerField, LongField, RationalField, ShortField

public abstract class GenericPowerField<E>
extends GenericField<E>

Provides a standard E powI(E l, Integer r) method for integer powers. Subclasses must implement Integer convertToInt(Object l)

Author:

Richard Morris

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected E	one
protected E	zero

Constructor Summary

Constructors

Constructor	Description
GenericPowerField(E zero, E one)

Method Summary

Modifier and Type	Method	Description
E	powG(E l, E r)	If r is integral (convertToInt returns non-null) call powI otherwise call powNI
protected E	powI(E l, java.lang.Integer r)
abstract E	powNonInt(E l, E r)	Called when the power is not an integer

Methods inherited from class com.singularsys.extensions.field.implementations.GenericField

add, addG, and, cast, cmp, cmpG, convertFromInt, convertToInt, convertToIntE, div, divG, getOne, getZero, mod, modG, mul, mulG, neg, negG, not, or, pow, sub, subG

Methods inherited from class com.singularsys.extensions.field.implementations.AbstractComparativeField

eq, ge, gt, le, lt, ne

Methods inherited from class java.lang.Object

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

Field Detail

zero

protected final E zero

one

protected final E one

Constructor Detail

GenericPowerField

public GenericPowerField(E zero,
                         E one)

Method Detail

powG

public E powG(E l,
              E r)
       throws EvaluationException

If r is integral (convertToInt returns non-null) call powI otherwise call powNI

Specified by:

powG in class GenericField<E>

Parameters:

l - lhs argument

r - rhs argument

Returns:

the power

Throws:

EvaluationException - on error

powNonInt

public abstract E powNonInt(E l,
                            E r)
                     throws EvaluationException

Called when the power is not an integer

Parameters:

l -

r -

Returns:

Throws:

EvaluationException

powI

protected E powI(E l,
                 java.lang.Integer r)
          throws EvaluationException

Throws:

EvaluationException