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source: trunk/sources/HeuristicLab.DataAccess.ADOHelper/3.2/TableAdapterWrapperBase.cs @ 2479

Last change on this file since 2479 was 2117, checked in by svonolfe, 15 years ago

Streaming of Jobs and JobsResults directly from/to the DB (#680)

File size: 2.4 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.Linq;
25using System.Text;
26using HeuristicLab.DataAccess.Interfaces;
27using System.Data.Common;
28
29namespace HeuristicLab.DataAccess.ADOHelper {
30  public abstract class TableAdapterWrapperBase<AdapterT, ObjT, RowT>:
31    ITableAdapterWrapper<AdapterT, ObjT, RowT>
32    where AdapterT : new()
33    where ObjT : new()
34    where RowT : System.Data.DataRow {
35    protected AdapterT adapter =
36      new AdapterT();
37
38    private Session session;
39   
40    #region IDataAdapterWrapper<AdapterT,ObjT,RowT> Members
41
42    public AdapterT TransactionalAdapter {
43      get {
44        if (session == null)
45          throw new Exception("No session set!");
46
47        ITransaction trans =
48          session.GetCurrentTransaction();
49        if (trans != null)
50          SetTransaction(trans.InnerTransaction as DbTransaction);
51        else
52          SetTransaction(null);
53
54        return this.adapter;
55      }
56    }
57
58    public Session Session {
59      protected get {
60        return this.session;
61      }
62
63      set {
64        this.session = value;
65
66        SetConnection(value.Connection);
67      }
68    }
69
70    public abstract void UpdateRow(RowT row);
71
72    public abstract RowT InsertNewRow(ObjT obj);
73
74    public abstract IEnumerable<RowT> FindById(Guid id);
75
76    public abstract IEnumerable<RowT> FindAll();
77
78    protected abstract void SetConnection(DbConnection connection);
79
80    protected abstract void SetTransaction(DbTransaction transaction);
81
82    #endregion
83  }
84}
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