org.sat4j.pb.constraints.pb
Class HTClausePB

java.lang.Object
  org.sat4j.minisat.constraints.cnf.HTClause
      org.sat4j.pb.constraints.pb.HTClausePB

All Implemented Interfaces:

java.io.Serializable, Constr, Propagatable, PBConstr, IConstr

public class HTClausePB
extends HTClause
implements PBConstr

See Also:

Serialized Form

Field Summary

Fields inherited from class org.sat4j.minisat.constraints.cnf.HTClause

head, middleLits, tail, voc

Constructor Summary

HTClausePB(IVecInt ps, ILits voc)

Method Summary

void	assertConstraint(UnitPropagationListener s)
static HTClausePB	brandNewClause(UnitPropagationListener s, ILits voc, IVecInt literals) Creates a brand new clause, presumably from external data.
IVecInt	computeAnImpliedClause()
java.math.BigInteger	getCoef(int literal)
java.math.BigInteger[]	getCoefs()
java.math.BigInteger	getDegree()
boolean	learnt()
void	register() Register this clause which means watching the necessary literals If the clause is learnt, setLearnt() must be called before a call to register()
void	setLearnt() declares this clause as learnt

Methods inherited from class org.sat4j.minisat.constraints.cnf.HTClause

calcReason, equals, get, getActivity, getLits, getVocabulary, hashCode, incActivity, locked, propagate, remove, rescaleBy, simplify, size, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.sat4j.pb.constraints.pb.PBConstr

getLits, getVocabulary

Methods inherited from interface org.sat4j.minisat.core.Constr

calcReason, getActivity, incActivity, locked, remove, rescaleBy, simplify

Methods inherited from interface org.sat4j.minisat.core.Propagatable

propagate

Methods inherited from interface org.sat4j.specs.IConstr

get, size

Constructor Detail

HTClausePB

public HTClausePB(IVecInt ps,
                  ILits voc)

Method Detail

getCoef

public java.math.BigInteger getCoef(int literal)

Specified by:

getCoef in interface PBConstr

getDegree

public java.math.BigInteger getDegree()

Specified by:

getDegree in interface PBConstr

getCoefs

public java.math.BigInteger[] getCoefs()

Specified by:

getCoefs in interface PBConstr

brandNewClause

public static HTClausePB brandNewClause(UnitPropagationListener s,
                                        ILits voc,
                                        IVecInt literals)

Creates a brand new clause, presumably from external data. Performs all sanity checks.

Parameters:

s - the object responsible for unit propagation

voc - the vocabulary

literals - the literals to store in the clause

Returns:

the created clause or null if the clause should be ignored (tautology for example)

assertConstraint

public void assertConstraint(UnitPropagationListener s)

Specified by:

assertConstraint in interface Constr

Overrides:

assertConstraint in class HTClause

computeAnImpliedClause

public IVecInt computeAnImpliedClause()

Specified by:

computeAnImpliedClause in interface PBConstr

setLearnt

public void setLearnt()

declares this clause as learnt

Specified by:

setLearnt in interface Constr

learnt

public boolean learnt()

Specified by:

learnt in interface IConstr

register

public void register()

Register this clause which means watching the necessary literals If the clause is learnt, setLearnt() must be called before a call to register()

Specified by:

register in interface Constr

See Also:

setLearnt()