jp.kobe_u.sugar.csp

Class LabelLiteral

java.lang.Object

jp.kobe_u.sugar.csp.Literal

jp.kobe_u.sugar.csp.LabelLiteral

public class LabelLiteral
extends Literal

This class implements a literal for representing labels of group-CNF/labelled-CNF.

See Also:

CSP

Constructor Summary

Constructors

Constructor and Description
LabelLiteral(int label)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
int	getLabel()
int	hashCode()
boolean	isSatisfied() Returns true when the literal is satisfied.
boolean	isSimple() Returns true when the literal is simple.
boolean	isUnsatisfiable()
boolean	isValid()
Literal	neg()
int	propagate()
java.lang.String	toString()

Methods inherited from class jp.kobe_u.sugar.csp.Literal

getBound, getCode, getVariables

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LabelLiteral

public LabelLiteral(int label)

Method Detail

getLabel

public int getLabel()

isSimple

public boolean isSimple()

Description copied from class: Literal

Returns true when the literal is simple. A literal is simple when it is a boolean literal or a comparison literal with at most one integer variable.

Specified by:

isSimple in class Literal

Returns:

true when the literal is simple

isValid

public boolean isValid()
                throws SugarException

Specified by:

isValid in class Literal

Throws:

SugarException

isUnsatisfiable

public boolean isUnsatisfiable()
                        throws SugarException

Specified by:

isUnsatisfiable in class Literal

Throws:

SugarException

propagate

public int propagate()

Specified by:

propagate in class Literal

isSatisfied

public boolean isSatisfied()

Description copied from class: Literal

Returns true when the literal is satisfied.

Specified by:

isSatisfied in class Literal

Returns:

true when the literal is satisfied

neg

public Literal neg()
            throws SugarException

Specified by:

neg in class Literal

Throws:

SugarException

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object