net.sf.cpsolver.ifs.example.tt
Class Dependence

java.lang.Object
  net.sf.cpsolver.ifs.model.Constraint
      net.sf.cpsolver.ifs.model.BinaryConstraint
          net.sf.cpsolver.ifs.example.tt.Dependence

public class Dependence
extends BinaryConstraint

Binary dependence between two activities.

Version:

IFS 1.1 (Iterative Forward Search)
Copyright (C) 2006 Tomáš Müller
muller@unitime.org
Lazenska 391, 76314 Zlin, Czech Republic

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Field Summary

static int	TYPE_AFTER
static int	TYPE_BEFORE
static int	TYPE_CLOSELY_AFTER
static int	TYPE_CLOSELY_BEFORE
static int	TYPE_CONCURRENCY
static int	TYPE_NO_DEPENDENCE

Fields inherited from class net.sf.cpsolver.ifs.model.Constraint

iAssignedVariables, iConstraintListeners, iId

Constructor Summary

Dependence(String id, int type)

Method Summary

void	computeConflicts(Value value, Set conflicts) The only method which has to be implemented by any constraint.
String	getName() Constraint's name -- for printing purposes
String	getResourceId()
int	getType()
boolean	inConflict(Value value) Returns true if the given assignment is inconsistent with the existing assignments respecting this constraint.
boolean	isConsistent(int s1, int l1, int s2, int l2)
boolean	isConsistent(Value value1, Value value2) Returns true if the given assignments are consistent respecting this constraint.

Methods inherited from class net.sf.cpsolver.ifs.model.BinaryConstraint

addVariable, another, first, isFirst, second

Methods inherited from class net.sf.cpsolver.ifs.model.Constraint

addConstraintListener, assigned, assignedVariables, constraintListeners, countAssignedVariables, countVariables, equals, getDescription, getId, getModel, hashCode, isHard, removeConstraintListener, removeVariable, setModel, unassigned, variables

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_NO_DEPENDENCE

public static final int TYPE_NO_DEPENDENCE

See Also:

Constant Field Values

TYPE_BEFORE

public static final int TYPE_BEFORE

See Also:

Constant Field Values

TYPE_CLOSELY_BEFORE

public static final int TYPE_CLOSELY_BEFORE

See Also:

Constant Field Values

TYPE_AFTER

public static final int TYPE_AFTER

See Also:

Constant Field Values

TYPE_CLOSELY_AFTER

public static final int TYPE_CLOSELY_AFTER

See Also:

Constant Field Values

TYPE_CONCURRENCY

public static final int TYPE_CONCURRENCY

See Also:

Constant Field Values

Constructor Detail

Dependence

public Dependence(String id,
                  int type)

Method Detail

getType

public int getType()

getResourceId

public String getResourceId()

computeConflicts

public void computeConflicts(Value value,
                             Set conflicts)

Description copied from class: Constraint

The only method which has to be implemented by any constraint. It returns the values which needs to be unassigned in order to make this constraint consistent with the given value if it is assigned to its variable. The computed list of conflicting values is added to the given set of conflicts.

Specified by:

computeConflicts in class Constraint

Parameters:

value - value to be assigned to its varaible

conflicts - resultant set of conflicting values

isConsistent

public boolean isConsistent(int s1,
                            int l1,
                            int s2,
                            int l2)

inConflict

public boolean inConflict(Value value)

Description copied from class: Constraint

Returns true if the given assignment is inconsistent with the existing assignments respecting this constraint. This method is used by MAC (see MacPropagation).

Overrides:

inConflict in class Constraint

isConsistent

public boolean isConsistent(Value value1,
                            Value value2)

Description copied from class: Constraint

Returns true if the given assignments are consistent respecting this constraint. This method is used by MAC (see MacPropagation).

Overrides:

isConsistent in class Constraint

getName

public String getName()

Description copied from class: Constraint

Constraint's name -- for printing purposes

Overrides:

getName in class Constraint