1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HeuristicLab.Data;
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25 | using HeuristicLab.Operators;
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26 | using HeuristicLab.Optimization;
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27 | using HeuristicLab.Parameters;
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28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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29 |
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30 | namespace HeuristicLab.Encodings.IntegerVectorEncoding {
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31 | /// <summary>
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32 | /// A base class for operators that perform a crossover of int-valued vectors.
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33 | /// </summary>
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34 | [Item("IntegerVectorCrossover", "A base class for operators that perform a crossover of int-valued vectors.")]
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35 | [StorableClass]
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36 | public abstract class IntegerVectorCrossover : SingleSuccessorOperator, IIntegerVectorCrossover, IStochasticOperator {
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37 | public ILookupParameter<IRandom> RandomParameter {
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38 | get { return (LookupParameter<IRandom>)Parameters["Random"]; }
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39 | }
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40 | public ILookupParameter<ItemArray<IntegerVector>> ParentsParameter {
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41 | get { return (SubScopesLookupParameter<IntegerVector>)Parameters["Parents"]; }
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42 | }
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43 | public ILookupParameter<IntegerVector> ChildParameter {
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44 | get { return (ILookupParameter<IntegerVector>)Parameters["Child"]; }
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45 | }
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46 |
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47 | protected IntegerVectorCrossover()
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48 | : base() {
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49 | Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic crossover operators."));
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50 | Parameters.Add(new SubScopesLookupParameter<IntegerVector>("Parents", "The parent vectors which should be crossed."));
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51 | Parameters.Add(new LookupParameter<IntegerVector>("Child", "The child vector resulting from the crossover."));
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52 | }
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53 |
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54 | public sealed override IOperation Apply() {
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55 | ChildParameter.ActualValue = Cross(RandomParameter.ActualValue, ParentsParameter.ActualValue);
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56 | return base.Apply();
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57 | }
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58 |
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59 | protected abstract IntegerVector Cross(IRandom random, ItemArray<IntegerVector> parents);
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60 | }
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61 | }
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