org.cpsolver.ifs.solver

Interface SolverListener<V extends Variable<V,T>,T extends Value<V,T>>

Type Parameters:

V - Variable

T - Value

All Known Implementing Classes:

AssignInitialSelection, BacktrackSelection, BranchBoundSelection, CriticalBacktrackSelection, CriticalCoursesBranchAndBoundSelection, DbtPropagation, MinCreditBranchAndBoundSelection, OnlineSelection, ResectionIncompleteStudentsSelection, ResectionUnassignedStudentsSelection, StudentEnrollmentSwapSelection, StudentSctNeighbourSelection, SuggestionSelection, SwapStudentSelection, TwoPhaseStudentSctNeighbourSelection

public interface SolverListener<V extends Variable<V,T>,T extends Value<V,T>>

IFS Solver Listener.

Version:

IFS 1.3 (Iterative Forward Search)
Copyright (C) 2006 - 2014 Tomáš Müller
muller@unitime.org
http://muller.unitime.org

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 3 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 see http://www.gnu.org/licenses.

Author:

Tomáš Müller

See Also:

Solver

Method Summary

Modifier and Type	Method and Description
void	neighbourFailed(Assignment<V,T> assignment, long iteration, Neighbour<V,T> neighbour) Called when ParallelSolver failed to assign the given neighbour
boolean	neighbourSelected(Assignment<V,T> assignment, long iteration, Neighbour<V,T> neighbour) A neighbour was selected
boolean	valueSelected(Assignment<V,T> assignment, long iteration, V variable, T value) A value was selected
boolean	variableSelected(Assignment<V,T> assignment, long iteration, V variable) A variable was selected

Method Detail

variableSelected

boolean variableSelected(Assignment<V,T> assignment,
                         long iteration,
                         V variable)

A variable was selected

Parameters:

assignment - current assignment

iteration - current iteration

variable - selected variable

Returns:

if false is returned the variable will be discarded (search continues with the next variable selection)

valueSelected

boolean valueSelected(Assignment<V,T> assignment,
                      long iteration,
                      V variable,
                      T value)

A value was selected

Parameters:

assignment - current assignment

iteration - current iteration

variable - selected variable

value - selected variable

Returns:

if false is returned the selected value is not assigned

neighbourSelected

boolean neighbourSelected(Assignment<V,T> assignment,
                          long iteration,
                          Neighbour<V,T> neighbour)

A neighbour was selected

Parameters:

assignment - current assignment

iteration - current iteration

neighbour - neighbour

Returns:

if false is returned the selected neighbour is not assigned

neighbourFailed

void neighbourFailed(Assignment<V,T> assignment,
                     long iteration,
                     Neighbour<V,T> neighbour)

Called when ParallelSolver failed to assign the given neighbour

Parameters:

assignment - current assignment

iteration - current iteration

neighbour - neighbour