source: branches/2520_PersistenceReintegration/HeuristicLab.Encodings.LinearLinkageEncoding/3.4/Moves/EMSS/SplitMove.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 21 months ago

#2520: updated year of copyrights

File size: 2.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2019 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;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Encodings.LinearLinkageEncoding {
28  [Item("Split Move", "Splits a group into two groups.")]
29  [StorableClass]
30  public sealed class SplitMove : EMSSMove {
31    [Storable]
32    private int nextItem; // is only used for undo -> no public property
33
34    [StorableConstructor]
35    private SplitMove(bool deserializing) : base(deserializing) { }
36    private SplitMove(SplitMove original, Cloner cloner)
37      : base(original, cloner) {
38      nextItem = original.nextItem;
39    }
40    public SplitMove(int item)
41      : base(item) {
42      nextItem = -1;
43    }
44   
45    public override IDeepCloneable Clone(Cloner cloner) {
46      return new SplitMove(this, cloner);
47    }
48
49    public override void Apply(LinearLinkage lle) {
50      if (lle[Item] == Item) throw new ArgumentException("Move conditions have changed, group is already split at " + Item);
51      nextItem = lle[Item];
52      lle[Item] = Item;
53    }
54
55    public override void Undo(LinearLinkage lle) {
56      if (lle[Item] != Item) throw new ArgumentException("Move conditions have changed, group no longer terminates at " + Item);
57      if (nextItem < 0) throw new InvalidOperationException("Cannot undo move that has not been applied first.");
58      lle[Item] = nextItem;
59    }
60
61    public override void ApplyToLLEb(int[] lleb) {
62      if (nextItem < 0) throw new InvalidOperationException("Cannot undo move that has not been applied first to LLE.");
63      lleb[nextItem] = nextItem;
64    }
65  }
66}
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