source: branches/2520_PersistenceReintegration/HeuristicLab.Operators/3.3/SingleSuccessorOperator.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: 2.2 KB
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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.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Parameters;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Operators {
28  /// <summary>
29  /// A base class for operators which have only one successor.
30  /// </summary>
31  [Item("SingleSuccessorOperator", "A base class for operators which have only one successor.")]
32  [StorableClass]
33  public abstract class SingleSuccessorOperator : Operator {
34    protected OperatorParameter SuccessorParameter {
35      get { return (OperatorParameter)Parameters["Successor"]; }
36    }
37    public IOperator Successor {
38      get { return SuccessorParameter.Value; }
39      set { SuccessorParameter.Value = value; }
40    }
41
42    [StorableConstructor]
43    protected SingleSuccessorOperator(bool deserializing) : base(deserializing) { }
44    protected SingleSuccessorOperator(SingleSuccessorOperator original, Cloner cloner)
45      : base(original, cloner) {
46    }
47    public SingleSuccessorOperator()
48      : base() {
49      Parameters.Add(new OperatorParameter("Successor", "Operator which is executed next."));
50      SuccessorParameter.Hidden = true;
51    }
52
53    public override IOperation Apply() {
54      if (Successor != null)
55        return ExecutionContext.CreateOperation(Successor);
56      else
57        return null;
58    }
59  }
60}
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