1  #region License Information


2  /* HeuristicLab


3  * Copyright (C) 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 


22  using HeuristicLab.Common;


23  using HeuristicLab.Core;


24  using HeuristicLab.Optimization;


25  using HeuristicLab.Parameters;


26  using HEAL.Attic;


27 


28  namespace HeuristicLab.Encodings.IntegerVectorEncoding {


29  /// <summary>


30  /// A base class for operators that perform a crossover of intvalued vectors.


31  /// </summary>


32  [Item("IntegerVectorCrossover", "A base class for operators that perform a crossover of intvalued vectors.")]


33  [StorableType("BE778213C1404B1CA4A41D92D0ADAB45")]


34  public abstract class IntegerVectorCrossover : IntegerVectorOperator, IIntegerVectorCrossover, IStochasticOperator {


35  public override bool CanChangeName {


36  get { return false; }


37  }


38  public ILookupParameter<IRandom> RandomParameter {


39  get { return (LookupParameter<IRandom>)Parameters["Random"]; }


40  }


41  public ILookupParameter<ItemArray<IntegerVector>> ParentsParameter {


42  get { return (ScopeTreeLookupParameter<IntegerVector>)Parameters["Parents"]; }


43  }


44  public ILookupParameter<IntegerVector> ChildParameter {


45  get { return (ILookupParameter<IntegerVector>)Parameters["Child"]; }


46  }


47 


48  [StorableConstructor]


49  protected IntegerVectorCrossover(StorableConstructorFlag _) : base(_) { }


50  protected IntegerVectorCrossover(IntegerVectorCrossover original, Cloner cloner) : base(original, cloner) { }


51  protected IntegerVectorCrossover()


52  : base() {


53  Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic crossover operators."));


54  Parameters.Add(new ScopeTreeLookupParameter<IntegerVector>("Parents", "The parent vectors which should be crossed."));


55  ParentsParameter.ActualName = "IntegerVector";


56  Parameters.Add(new LookupParameter<IntegerVector>("Child", "The child vector resulting from the crossover."));


57  ChildParameter.ActualName = "IntegerVector";


58  }


59 


60  public sealed override IOperation InstrumentedApply() {


61  ChildParameter.ActualValue = Cross(RandomParameter.ActualValue, ParentsParameter.ActualValue);


62  return base.InstrumentedApply();


63  }


64 


65  protected abstract IntegerVector Cross(IRandom random, ItemArray<IntegerVector> parents);


66  }


67  }

