1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 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.Collections.Generic;
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24 | using System.Text;
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25 | using System.Xml;
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26 | using HeuristicLab.Core;
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27 | using HeuristicLab.Data;
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28 |
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29 | namespace HeuristicLab.Constraints {
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30 | public class OrConstraint : ConstraintBase, IViewable {
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31 | private ItemList<IConstraint> clauses;
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32 | public ItemList<IConstraint> Clauses {
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33 | get { return clauses; }
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34 | set {
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35 | clauses = value;
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36 | OnChanged();
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37 | }
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38 | }
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39 |
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40 | public override string Description {
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41 | get {
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42 | return "To return true, at least one subconstraint has to be true";
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43 | }
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44 | }
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45 |
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46 | public OrConstraint() {
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47 | clauses = new ItemList<IConstraint>();
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48 | }
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49 |
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50 | /// <summary>
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51 | /// Copy constructor to create clones (deep).
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52 | /// </summary>
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53 | /// <param name="original">The original instance to be cloned.</param>
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54 | public OrConstraint(OrConstraint original) : this(original, new Dictionary<Guid, object>()) { }
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55 | /// <summary>
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56 | /// Copy constructor to create clones (deep) reusing already cloned object references.
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57 | /// </summary>
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58 | /// <param name="original">The instance to be cloned.</param>
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59 | /// <param name="clonedObjects">Already cloned objects (for referential integrity).</param>
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60 | protected OrConstraint(OrConstraint original, IDictionary<Guid, object> clonedObjects)
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61 | : base(original, clonedObjects) {
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62 | this.Clauses = (ItemList<IConstraint>)Auxiliary.Clone(original.Clauses, clonedObjects);
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63 | }
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64 |
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65 | public override bool Check(IItem data) {
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66 | bool result = false;
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67 | for (int i = 0; i < clauses.Count; i++) {
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68 | result = clauses[i].Check(data);
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69 | if (result) return true;
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70 | }
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71 | return result;
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72 | }
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73 |
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74 | public override IView CreateView() {
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75 | return new OrConstraintView(this);
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76 | }
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77 |
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78 | /// <summary>
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79 | /// Clones an instance using the copy constructor
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80 | /// reusing already cloned object references.
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81 | /// </summary>
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82 | /// <param name="clonedObjects">Already cloned objects (for referential integrity).</param>
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83 | /// <returns>A cloned (deep) instance</returns>
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84 | public override object Clone(IDictionary<Guid, object> clonedObjects) {
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85 | return new OrConstraint(this, clonedObjects);
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86 | }
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87 |
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88 | #region persistence
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89 | public override XmlNode GetXmlNode(string name, XmlDocument document, IDictionary<Guid, IStorable> persistedObjects) {
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90 | XmlNode node = base.GetXmlNode(name, document, persistedObjects);
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91 | XmlNode clausesNode = PersistenceManager.Persist("Clauses", Clauses, document, persistedObjects);
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92 | node.AppendChild(clausesNode);
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93 |
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94 | return node;
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95 | }
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96 |
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97 | public override void Populate(XmlNode node, IDictionary<Guid, IStorable> restoredObjects) {
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98 | base.Populate(node, restoredObjects);
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99 | clauses = (ItemList<IConstraint>)PersistenceManager.Restore(node.SelectSingleNode("Clauses"), restoredObjects);
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100 | }
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101 | #endregion persistence
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102 | }
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103 | }
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