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comparison Source/Mapping/ObjectListMapper.cs @ 0:f990fcb411a9

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Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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-1:000000000000 0:f990fcb411a9
1 using System.Collections;
2
3 using BLToolkit.Reflection;
4
5 namespace BLToolkit.Mapping
6 {
7 public class ObjectListMapper : IMapDataSourceList, IMapDataDestinationList
8 {
9 public ObjectListMapper(IList list, ObjectMapper objectMapper)
10 {
11 _list = list;
12 _mapper = objectMapper;
13 }
14
15 private readonly IList _list;
16 private ObjectMapper _mapper;
17 private int _currentItem;
18
19 #region IMapDataSourceList Members
20
21 void IMapDataSourceList.InitMapping(InitContext initContext)
22 {
23 initContext.DataSource = _mapper;
24 }
25
26 bool IMapDataSourceList.SetNextDataSource(InitContext initContext)
27 {
28 if (_currentItem >= _list.Count)
29 return false;
30
31 initContext.SourceObject = _list[_currentItem];
32 _currentItem++;
33
34 return true;
35 }
36
37 void IMapDataSourceList.EndMapping(InitContext initContext)
38 {
39 }
40
41 #endregion
42
43 #region IMapDataDestinationList Members
44
45 void IMapDataDestinationList.InitMapping(InitContext initContext)
46 {
47 ISupportMapping sm = _list as ISupportMapping;
48
49 if (sm != null)
50 {
51 sm.BeginMapping(initContext);
52
53 if (initContext.ObjectMapper != null && _mapper != initContext.ObjectMapper)
54 _mapper = initContext.ObjectMapper;
55 }
56 }
57
58 IMapDataDestination IMapDataDestinationList.GetDataDestination(InitContext initContext)
59 {
60 return _mapper;
61 }
62
63 private object _currentObject;
64
65 private void AddCurrent()
66 {
67 if (_currentObject != null)
68 {
69 _list.Add(_currentObject);
70 _currentObject = null;
71 }
72 }
73
74 object IMapDataDestinationList.GetNextObject(InitContext initContext)
75 {
76 AddCurrent();
77
78 return _currentObject = _mapper.CreateInstance(initContext);
79 }
80
81 void IMapDataDestinationList.EndMapping(InitContext initContext)
82 {
83 AddCurrent();
84
85 ISupportMapping sm = _list as ISupportMapping;
86
87 if (sm != null)
88 sm.EndMapping(initContext);
89 }
90
91 #endregion
92 }
93 }