source: branches/TerminationCriteria/HeuristicLab.Termination/3.3/ThresholdTerminator.cs @ 12410

Last change on this file since 12410 was 12410, checked in by pfleck, 4 years ago

#2027

  • Added IThresholdTerminator interface for more flexibility. The ThresholdTerminatorView now uses the interface instead of a concrete terminator.
  • Added MaximumIterationsTerminator and SingleObjectiveQualityTerminator as common used Terminators.
File size: 2.8 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 System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Parameters;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28
29
30namespace HeuristicLab.Termination {
31  [Item("ThresholdTerminator", "Base class for all termination criteria which specifies some threshold.")]
32  [StorableClass]
33  public abstract class ThresholdTerminator<T> : Terminator, IThresholdTerminator where T : class, IItem, IStringConvertibleValue, new() {
34    public IFixedValueParameter<T> ThresholdParameter {
35      get { return (IFixedValueParameter<T>)Parameters["Threshold"]; }
36    }
37    IParameter IThresholdTerminator.ThresholdParameter {
38      get { return ThresholdParameter; }
39    }
40
41    public T Threshold {
42      get { return ThresholdParameter.Value; }
43    }
44
45    [StorableConstructor]
46    protected ThresholdTerminator(bool deserializing) : base(deserializing) { }
47    [StorableHook(HookType.AfterDeserialization)]
48    private void AfterDeserialization() {
49      Initialize();
50    }
51    protected ThresholdTerminator(ThresholdTerminator<T> original, Cloner cloner)
52      : base(original, cloner) {
53      Initialize();
54    }
55    protected ThresholdTerminator()
56      : this(new T()) { }
57    protected ThresholdTerminator(T threshold)
58      : base() {
59      if (threshold == null) throw new ArgumentNullException("threshold");
60      Parameters.Add(new FixedValueParameter<T>("Threshold", "The limit of the termiation criterion.", threshold));
61      Initialize();
62    }
63
64    private void Initialize() {
65      Threshold.ValueChanged += new EventHandler(Threshold_ValueChanged);
66    }
67
68    private void Threshold_ValueChanged(object sender, EventArgs e) {
69      OnThresholdChanged();
70    }
71    protected virtual void OnThresholdChanged() {
72      OnToStringChanged();
73    }
74
75    public override string ToString() {
76      if (ThresholdParameter.Value == null) return Name;
77      else return Name + ": " + ThresholdParameter.Value;
78    }
79  }
80}
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