source: branches/2520_PersistenceReintegration/HeuristicLab.Operators/3.3/ValuesCollector.cs @ 16453

Last change on this file since 16453 was 16453, checked in by jkarder, 2 years ago

#2520: updated year of copyrights

File size: 3.3 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 HeuristicLab.Collections;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Operators {
28  /// <summary>
29  /// An operator which collects the actual values of parameters.
30  /// </summary>
31  [Item("ValuesCollector", "An operator which collects the actual values of parameters.")]
32  [StorableClass]
33  public abstract class ValuesCollector : SingleSuccessorOperator, IOperator {
34    [Storable]
35    private ParameterCollection collectedValues;
36    public ParameterCollection CollectedValues {
37      get { return collectedValues; }
38    }
39
40    [StorableConstructor]
41    protected ValuesCollector(bool deserializing) : base(deserializing) { }
42    protected ValuesCollector(ValuesCollector original, Cloner cloner)
43      : base(original, cloner) {
44      this.collectedValues = cloner.Clone<ParameterCollection>(original.collectedValues);
45      Initialize();
46    }
47    public ValuesCollector()
48      : base() {
49      collectedValues = new ParameterCollection();
50      Initialize();
51    }
52
53    [StorableHook(HookType.AfterDeserialization)]
54    private void AfterDeserialization() {
55      Initialize();
56    }
57
58    private void Initialize() {
59      collectedValues.ItemsAdded += new CollectionItemsChangedEventHandler<IParameter>(collectedValues_ItemsAdded);
60      collectedValues.ItemsRemoved += new CollectionItemsChangedEventHandler<IParameter>(collectedValues_ItemsRemoved);
61      collectedValues.CollectionReset += new CollectionItemsChangedEventHandler<IParameter>(collectedValues_CollectionReset);
62    }
63
64    private void collectedValues_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
65      Parameters.AddRange(e.Items);
66    }
67    private void collectedValues_ItemsRemoved(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
68      Parameters.RemoveRange(e.Items);
69    }
70    #region NOTE
71    // NOTE: The ItemsReplaced event does not have to be handled here as it is only fired when the name (i.e. key) of a parameter
72    // changes. As the same parameter is also contained in the Parameters collection of the operator, the Parameters collection
73    // will react on this name change on its own.
74    #endregion
75    private void collectedValues_CollectionReset(object sender, CollectionItemsChangedEventArgs<IParameter> e) {
76      Parameters.RemoveRange(e.OldItems);
77      Parameters.AddRange(e.Items);
78    }
79  }
80}
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