source: trunk/sources/HeuristicLab.Encodings.PermutationEncoding/3.3/Manipulators/MultiPermutationManipulator.cs @ 3425

Last change on this file since 3425 was 3425, checked in by abeham, 12 years ago

Changed MultiCrossover to StochasticMultiOperator
Derived StochasticMultiBranch from StochasticMultiOperator
Derived encoding specific mutation/crossover operators from StochasticMultiOperator
#976

File size: 3.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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 System.Linq;
23using HeuristicLab.Collections;
24using HeuristicLab.Core;
25using HeuristicLab.Operators;
26using HeuristicLab.Optimization;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29
30namespace HeuristicLab.Encodings.PermutationEncoding {
31  [Item("MultiPermutationManipulator", "Randomly selects and applies one of its manipulators every time it is called.")]
32  [StorableClass]
33  public class MultiPermutationManipulator : StochasticMultiOperator<IPermutationManipulator>, IPermutationManipulator {
34    public override bool CanChangeName {
35      get { return false; }
36    }
37    protected override bool CreateChildOperation {
38      get { return true; }
39    }
40    public override bool AutomaticTypeDiscovery {
41      get { return true; }
42    }
43
44    public ILookupParameter<Permutation> PermutationParameter {
45      get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; }
46    }
47
48    [StorableConstructor]
49    private MultiPermutationManipulator(bool deserializing) : base(deserializing) { }
50    public MultiPermutationManipulator()
51      : base() {
52      Parameters.Add(new LookupParameter<Permutation>("Permutation", "The permutation that is being manipulating."));
53
54      Initialize();
55      ParameterizeManipulators();
56    }
57
58    [StorableHook(HookType.AfterDeserialization)]
59    private void Initialize() {
60      Operators.ItemsAdded += new CollectionItemsChangedEventHandler<IndexedItem<IPermutationManipulator>>(Operators_ItemsAdded);
61      Operators.ItemsReplaced += new CollectionItemsChangedEventHandler<IndexedItem<IPermutationManipulator>>(Operators_ItemsReplaced);
62    }
63
64    private void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IPermutationManipulator>> e) {
65      ParameterizeManipulators();
66    }
67
68    private void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IPermutationManipulator>> e) {
69      ParameterizeManipulators();
70    }
71
72    private void ParameterizeManipulators() {
73      foreach (IPermutationManipulator manipulator in Operators.OfType<IPermutationManipulator>()) {
74        manipulator.PermutationParameter.ActualName = PermutationParameter.Name;
75      }
76      foreach (IStochasticOperator crossover in Operators.OfType<IStochasticOperator>()) {
77        crossover.RandomParameter.ActualName = RandomParameter.Name;
78      }
79    }
80  }
81}
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