edu.jas.poly

Class PolynomialComparator<C extends RingElem<C>>

java.lang.Object

edu.jas.poly.PolynomialComparator<C>

Type Parameters:

C - coefficient type

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<GenPolynomial<C>>

public class PolynomialComparator<C extends RingElem<C>>
extends java.lang.Object
implements java.io.Serializable, java.util.Comparator<GenPolynomial<C>>

Comparator for polynomials.

Author:

Heinz Kredel.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
boolean	reverse
TermOrder	tord

Constructor Summary

Constructors

Constructor and Description
PolynomialComparator(TermOrder t, boolean reverse) Constructor.

Method Summary

Modifier and Type	Method and Description
int	compare(GenPolynomial<C> p1, GenPolynomial<C> p2) Compare polynomials.
boolean	equals(java.lang.Object o) Equals test of comparator.
int	hashCode() Hash code for this PolynomialComparator.
java.lang.String	toString() toString.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

tord

public final TermOrder tord

reverse

public final boolean reverse

Constructor Detail

PolynomialComparator

public PolynomialComparator(TermOrder t,
                            boolean reverse)

Constructor.

Parameters:

t - TermOrder.

reverse - flag if reverse ordering is requested.

Method Detail

compare

public int compare(GenPolynomial<C> p1,
                   GenPolynomial<C> p2)

Compare polynomials.

Specified by:

compare in interface java.util.Comparator<GenPolynomial<C extends RingElem<C>>>

Parameters:

p1 - first polynomial.

p2 - second polynomial.

Returns:

0 if ( p1 == p2 ), -1 if ( p1 < p2 ) and +1 if ( p1 > p2 ).

equals

public boolean equals(java.lang.Object o)

Equals test of comparator.

Specified by:

equals in interface java.util.Comparator<GenPolynomial<C extends RingElem<C>>>

Overrides:

equals in class java.lang.Object

Parameters:

o - other object.

Returns:

true if this = o, else false.

hashCode

public int hashCode()

Hash code for this PolynomialComparator.

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

toString

public java.lang.String toString()

toString.

Overrides:

toString in class java.lang.Object