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source: trunk/sources/HeuristicLab.CEDMA.Core/DataSetList.cs @ 1417

Last change on this file since 1417 was 1417, checked in by gkronber, 15 years ago

Introduced paging for queries to fix problems with large WCF messages. #257 (CEDMA console doesn't handle communication- and timeout exceptions correctly)

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.Linq;
25using System.Text;
26using HeuristicLab.Core;
27using System.Collections;
28using HeuristicLab.CEDMA.DB.Interfaces;
29using System.Xml;
30using System.Runtime.Serialization;
31using System.IO;
32using HeuristicLab.Operators;
33
34namespace HeuristicLab.CEDMA.Core {
35  public class DataSetList : ItemBase, IEnumerable<DataSet> {
36    private List<DataSet> dataSetList;
37    private IStore store;
38    public IStore Store {
39      get { return store; }
40      set {
41        store = value;
42        Action reload = ReloadList;
43        lock (dataSetList) {
44          dataSetList.Clear();
45        }
46        reload.BeginInvoke(null, null);
47      }
48    }
49
50    public DataSetList()
51      : base() {
52      dataSetList = new List<DataSet>();
53    }
54
55    public override IView CreateView() {
56      return new DataSetListView(this);
57    }
58
59    private void ReloadList() {
60      HeuristicLab.CEDMA.DB.Interfaces.Variable dataSetVar = new HeuristicLab.CEDMA.DB.Interfaces.Variable("DataSet");
61      HeuristicLab.CEDMA.DB.Interfaces.Variable dataSetNameVar = new HeuristicLab.CEDMA.DB.Interfaces.Variable("Name");
62      var bindings = store.Query(
63        "?DataSet <"+Ontology.PredicateInstanceOf.Uri+"> <"+Ontology.TypeDataSet.Uri+"> ." + Environment.NewLine +
64        "?DataSet <"+Ontology.PredicateName.Uri+"> ?Name .",0, 100);
65      foreach (var binding in bindings) {
66        DataSet d = new DataSet(store, (Entity)binding.Get("DataSet"));
67        d.Name = (string)((Literal)binding.Get("Name")).Value;
68        lock (dataSetList) {
69          dataSetList.Add(d);
70        }
71        FireChanged();
72      }
73    }
74
75    public IEnumerator<DataSet> GetEnumerator() {
76      List<DataSet> dataSets = new List<DataSet>();
77      lock (dataSets) {
78        dataSets.AddRange(dataSetList);
79      }
80      return dataSets.GetEnumerator();
81    }
82
83    IEnumerator IEnumerable.GetEnumerator() {
84      return GetEnumerator();
85    }
86
87    public void Add(DataSet dataSet) {
88      dataSetList.Add(dataSet);
89    }
90  }
91}
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