rationals.expr

Class RationalExpr

java.lang.Object

rationals.expr.RationalExpr

All Implemented Interfaces:

SemiRing

Direct Known Subclasses:

BinaryExpr, Letter

public abstract class RationalExpr
extends Object
implements SemiRing

Version:

$Id: RationalExpr.java 2 2006-08-24 14:41:48Z oqube $

Author:

nono

Constructor Summary

Constructors

Constructor and Description
RationalExpr()

Method Summary

Modifier and Type	Method and Description
SemiRing	mult(SemiRing s2) Multiplication of semiring element with another element.
SemiRing	one() Neutral element for multiplication.
SemiRing	plus(SemiRing s2) Addition of a Semi-ring element with another element.
SemiRing	zero() Neutral element for addition.

Methods inherited from class java.lang.Object

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

Constructor Detail

RationalExpr

public RationalExpr()

Method Detail

one

public final SemiRing one()

Description copied from interface: SemiRing

Neutral element for multiplication.

Specified by:

one in interface SemiRing

Returns:

one

zero

public final SemiRing zero()

Description copied from interface: SemiRing

Neutral element for addition.

Specified by:

zero in interface SemiRing

Returns:

zero

mult

public SemiRing mult(SemiRing s2)

Description copied from interface: SemiRing

Multiplication of semiring element with another element.

Specified by:

mult in interface SemiRing

Parameters:

s2 - s2

Returns:

multiplication

plus

public SemiRing plus(SemiRing s2)

Description copied from interface: SemiRing

Addition of a Semi-ring element with another element.

Specified by:

plus in interface SemiRing

Parameters:

s2 - s2

Returns:

addition