Free cookie consent management tool by TermsFeed Policy Generator

source: trunk/sources/HeuristicLab.Operators/3.3/Placeholder.cs @ 3031

Last change on this file since 3031 was 3024, checked in by swagner, 15 years ago

Restricted name changes to CombinedOperator, Placeholder and ProgrammableOperator (#893)

File size: 2.1 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 HeuristicLab.Core;
23using HeuristicLab.Parameters;
24using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
25
26namespace HeuristicLab.Operators {
27  /// <summary>
28  /// An operator which acts as a placeholder for another operator retrieved from the scope or a parent execution context.
29  /// </summary>
30  [Item("Placeholder", "An operator which acts as a placeholder for another operator retrieved from the scope or a parent execution context.")]
31  [Creatable("Test")]
32  [StorableClass]
33  public sealed class Placeholder : SingleSuccessorOperator {
34    public override bool CanChangeName {
35      get { return true; }
36    }
37    public LookupParameter<IOperator> OperatorParameter {
38      get { return (LookupParameter<IOperator>)Parameters["Operator"]; }
39    }
40
41    public Placeholder()
42      : base() {
43      Parameters.Add(new LookupParameter<IOperator>("Operator", "The operator which is retrieved from the scope or a parent execution context and applied on the current scope."));
44    }
45
46    public override IOperation Apply() {
47      OperationCollection next = new OperationCollection(base.Apply());
48      IOperator op = OperatorParameter.ActualValue;
49      if (op != null)
50        next.Insert(0, ExecutionContext.CreateOperation(op));
51      return next;
52    }
53  }
54}
Note: See TracBrowser for help on using the repository browser.