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source: branches/HL-3.2-MonoMigration/HeuristicLab.Data/ObjectData.cs @ 2396

Last change on this file since 2396 was 508, checked in by gkronber, 16 years ago

fixed a bug in ObjectData.Equals() (tickets #239 and #254)

File size: 2.7 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;
27
28namespace HeuristicLab.Data {
29  public class ObjectData : ItemBase, IObjectData {
30    private object myData;
31    public virtual object Data {
32      get { return myData; }
33      set {
34        if (myData != value) {
35          myData = value;
36          OnChanged();
37        }
38      }
39    }
40
41    public override object Clone(IDictionary<Guid, object> clonedObjects) {
42      ObjectData clone = (ObjectData)base.Clone(clonedObjects);
43      if (Data is IStorable)
44        clone.myData = Auxiliary.Clone((IStorable)Data, clonedObjects);
45      else if (Data is ICloneable)
46        clone.myData = ((ICloneable)Data).Clone();
47      else
48        throw new InvalidOperationException("contained object is not cloneable");
49      return clone;
50    }
51
52    public override bool Equals(object obj) {
53      if(obj == this) return true; // same instance
54      IObjectData other = obj as IObjectData;
55      if(other != null)
56        return Data.Equals(other.Data); // are the contained Data the same?
57      else
58        return false;
59    }
60
61    public override int GetHashCode() {
62      return Data.GetHashCode();
63    }
64
65    public int CompareTo(object obj) {
66      IComparable comparable = Data as IComparable;
67      if (comparable != null) {
68        IObjectData other = obj as IObjectData;
69        if (other != null)
70          return comparable.CompareTo(other.Data);
71        else
72          return comparable.CompareTo(obj);
73      }
74      throw new InvalidOperationException("Cannot compare as contained object doesn't implement IComparable");
75    }
76
77    public override string ToString() {
78      if (Data == null)
79        return "null";
80      else
81        return Data.ToString();
82    }
83
84    public virtual void Accept(IObjectDataVisitor visitor) {
85      visitor.Visit(this);
86    }
87  }
88}
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