org.sat4j.minisat.constraints
Class ClausalDataStructureHT

java.lang.Object
  org.sat4j.minisat.constraints.AbstractDataStructureFactory<ILits>
      org.sat4j.minisat.constraints.ClausalDataStructureHT

All Implemented Interfaces:

java.io.Serializable, DataStructureFactory<ILits>

public class ClausalDataStructureHT
extends AbstractDataStructureFactory<ILits>

Uses Head Tail data structure for both original clauses and learned clauses.

Author:

leberre

See Also:

Serialized Form

Field Summary

Fields inherited from class org.sat4j.minisat.constraints.AbstractDataStructureFactory

learner, lits, solver

Constructor Summary

ClausalDataStructureHT()

Method Summary

Constr	createClause(IVecInt literals)
protected ILits	createLits()
Constr	createUnregisteredClause(IVecInt literals)

Methods inherited from class org.sat4j.minisat.constraints.AbstractDataStructureFactory

conflictDetectedInAttachesFor, createCardinalityConstraint, getAttachesFor, getVocabulary, learnConstraint, reset, setLearner, setUnitPropagationListener

Methods inherited from class java.lang.Object

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

Constructor Detail

ClausalDataStructureHT

public ClausalDataStructureHT()

Method Detail

createClause

public Constr createClause(IVecInt literals)
                    throws ContradictionException

Parameters:

literals - a set of literals using Dimacs format (signed non null integers).

Returns:

null if the constraint is a tautology.

Throws:

ContradictionException - the constraint is trivially unsatisfiable.

createUnregisteredClause

public Constr createUnregisteredClause(IVecInt literals)

createLits

protected ILits createLits()

Specified by:

createLits in class AbstractDataStructureFactory<ILits>