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source: branches/3.1/sources/HeuristicLab.Constraints/AndConstraint.cs @ 7904

Last change on this file since 7904 was 40, checked in by swagner, 17 years ago

Worked on ticket #41

  • added generic ItemList<T>
File size: 2.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 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 System;
23using System.Collections.Generic;
24using System.Text;
25using System.Xml;
26using HeuristicLab.Core;
27using HeuristicLab.Data;
28
29namespace HeuristicLab.Constraints {
30  public class AndConstraint : ConstraintBase, IViewable {
31    private ItemList<IConstraint> clauses;
32    public ItemList<IConstraint> Clauses {
33      get { return clauses; }
34      set {
35        clauses = value;
36        OnChanged();
37      }
38    }
39
40    public override string Description {
41      get {
42        return "To return true, all subconstraints have to be true";
43      }
44    }
45
46    public AndConstraint() {
47      clauses = new ItemList<IConstraint>();
48    }
49
50    public override bool Check(IItem data) {
51      bool result = true;
52      for (int i = 0 ; i < clauses.Count ; i++) {
53        result = clauses[i].Check(data);
54        if (!result) return false;
55      }
56      return result;
57    }
58
59    public override IView CreateView() {
60      return new AndConstraintView(this);
61    }
62
63    public override object Clone(IDictionary<Guid, object> clonedObjects) {
64      AndConstraint clone = new AndConstraint();
65      clonedObjects.Add(Guid, clone);
66      clone.Clauses = (ItemList<IConstraint>)Auxiliary.Clone(Clauses, clonedObjects);
67      return clone;
68    }
69
70    public override void Accept(IConstraintVisitor visitor) {
71      visitor.Visit(this);
72    }
73
74    #region persistence
75    public override XmlNode GetXmlNode(string name, XmlDocument document, IDictionary<Guid,IStorable> persistedObjects) {
76      XmlNode node = base.GetXmlNode(name, document, persistedObjects);
77      XmlNode clausesNode = PersistenceManager.Persist("Clauses", Clauses, document, persistedObjects);
78      node.AppendChild(clausesNode);
79
80      return node;
81    }
82
83    public override void Populate(XmlNode node, IDictionary<Guid,IStorable> restoredObjects) {
84      base.Populate(node, restoredObjects);
85      clauses = (ItemList<IConstraint>)PersistenceManager.Restore(node.SelectSingleNode("Clauses"), restoredObjects);
86    }
87    #endregion persistence
88  }
89}
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