1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2019 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 System;
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23 | using System.Reflection;
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24 | using HeuristicLab.Common;
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25 | using HeuristicLab.Core;
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26 | using HEAL.Fossil;
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27 |
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28 | namespace HeuristicLab.Parameters {
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29 | /// <summary>
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30 | /// A parameter whose value is defined in the parameter itself.
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31 | /// </summary>
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32 | [Item("ValueParameter", "A parameter whose value is defined in the parameter itself.")]
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33 | [StorableType("CB9B83B6-DE2B-45CC-AB0B-C551E1A6E0BD")]
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34 | public class ValueParameter<T> : OptionalValueParameter<T> where T : class, IItem {
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35 | public override T Value {
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36 | get { return base.Value; }
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37 | set {
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38 | if ((value == null) && (Value != null)) throw new ArgumentNullException();
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39 | base.Value = value;
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40 | }
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41 | }
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42 |
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43 | [StorableConstructor]
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44 | protected ValueParameter(StorableConstructorFlag _) : base(_) { }
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45 | protected ValueParameter(ValueParameter<T> original, Cloner cloner) : base(original, cloner) { }
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46 |
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47 | public ValueParameter() : base() { }
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48 | public ValueParameter(string name) : base(name) { base.Value = CreateDefaultValue(); }
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49 | public ValueParameter(string name, bool getsCollected) : base(name, getsCollected) { base.Value = CreateDefaultValue(); }
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50 | public ValueParameter(string name, T value) : base(name, value) { }
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51 | public ValueParameter(string name, T value, bool getsCollected) : base(name, value, getsCollected) { }
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52 | public ValueParameter(string name, string description) : base(name, description) { base.Value = CreateDefaultValue(); }
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53 | public ValueParameter(string name, string description, bool getsCollected) : base(name, description, getsCollected) { base.Value = CreateDefaultValue(); }
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54 | public ValueParameter(string name, string description, T value) : base(name, description, value) { }
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55 | public ValueParameter(string name, string description, T value, bool getsCollected) : base(name, description, value, getsCollected) { }
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56 |
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57 | protected T CreateDefaultValue() {
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58 | Type type = typeof(T);
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59 | if (type.IsAbstract) return null;
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60 | ConstructorInfo defaultConstructor = type.GetConstructor(Type.EmptyTypes);
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61 | if (defaultConstructor == null) return null;
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62 |
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63 | return (T)defaultConstructor.Invoke(new object[0]);
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64 | }
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65 |
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66 | public override IDeepCloneable Clone(Cloner cloner) {
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67 | return new ValueParameter<T>(this, cloner);
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68 | }
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69 | }
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70 | }
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