source: branches/TerminationCriteria/HeuristicLab.Optimization/3.3/Termination/SingleObjectiveQualityTerminator.cs @ 12567

Last change on this file since 12567 was 12567, checked in by pfleck, 7 years ago

#2027 Added missing clone method.

File size: 2.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Data;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Optimization {
28  [Item("SingleObjectiveQualityTerminator", "A termination criterion which uses a quality parameter (eg. current best quality) for termination.")]
29  [StorableClass]
30  public class SingleObjectiveQualityTerminator : ComparisonTerminator<DoubleValue> {
31    [StorableConstructor]
32    protected SingleObjectiveQualityTerminator(bool deserializing) : base(deserializing) { }
33    protected SingleObjectiveQualityTerminator(SingleObjectiveQualityTerminator original, Cloner cloner)
34      : base(original, cloner) { }
35    public override IDeepCloneable Clone(Cloner cloner) {
36      return new SingleObjectiveQualityTerminator(this, cloner);
37    }
38    public SingleObjectiveQualityTerminator() { }
39
40    public void Parameterize(IParameter qualityParameter, ISingleObjectiveHeuristicOptimizationProblem problem) {
41      ComparisonValueParameter.ActualName = qualityParameter.Name;
42      if (problem == null) return;
43
44      var maximizationParameter = (IValueParameter<BoolValue>)problem.MaximizationParameter;
45      if (maximizationParameter != null) {
46        bool maximization = maximizationParameter.Value.Value;
47        ComparisonType = maximization ? ComparisonType.Less : ComparisonType.Greater;
48        Threshold.Value = maximization ? double.MaxValue : double.MinValue;
49      }
50    }
51  }
52}
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