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source: branches/HeuristicLab.DataImporter/HeuristicLab.DataImporter.DataProcessor/Command/LoadColumnGroupsFromDBCommand.cs @ 6486

Last change on this file since 6486 was 6134, checked in by gkronber, 14 years ago

#1471: added plugin for DbExplorer interfaces, deleted .resx files, set svn:ignore properties, and added license header

File size: 2.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2011 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.Linq;
25using System.Text;
26using System.Xml;
27using HeuristicLab.DataImporter.Data.Model;
28using HeuristicLab.DataImporter.Data.CommandBase;
29using HeuristicLab.DataImporter.DbExplorer.Interfaces;
30using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
31
32namespace HeuristicLab.DataImporter.DataProcessor.Command {
33  [StorableClass]
34  public class LoadColumnGroupsFromDBCommand : DatabaseCommandBase {
35    [Storable]
36    private List<DbTable> tables;
37
38    private List<ColumnGroup> newColumnGroups;
39
40    private LoadColumnGroupsFromDBCommand()
41      : base(null, null) {
42      this.newColumnGroups = new List<ColumnGroup>();
43    }
44
45    public LoadColumnGroupsFromDBCommand(DataSet dataSet, IDbExplorer dbExplorer, IEnumerable<DbTable> tables)
46      : base(dataSet, dbExplorer) {
47      this.tables = new List<DbTable>(tables);
48      this.newColumnGroups = new List<ColumnGroup>();
49    }
50
51    public override string Description {
52      get { return "Load ColumnGroups from database"; }
53    }
54
55    public override void Execute() {
56      base.Execute();
57      if (DbExplorer == null || !DbExplorer.IsConnected)
58        throw new CommandExecutionException("Could not load data because no connection to the database exists", this);
59      ColumnGroup columnGroup;
60      foreach (DbTable table in tables) {
61        columnGroup = DbExplorer.CreateColumnGroup(table);
62        this.DataSet.AddColumnGroup(columnGroup);
63        newColumnGroups.Add(columnGroup);
64      }
65      this.DataSet.FireChanged();
66    }
67
68    public override void UndoExecute() {
69      base.UndoExecute();
70      foreach (ColumnGroup columnGroup in newColumnGroups)
71        this.DataSet.RemoveColumnGroup(columnGroup);
72      newColumnGroups.Clear();
73      this.DataSet.FireChanged();
74    }
75  }
76}
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