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comparison Source/Data/Linq/DataContextTransaction.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;
2 using System.Data;
3
4 using JetBrains.Annotations;
5
6 namespace BLToolkit.Data.Linq
7 {
8 public class DataContextTransaction : IDisposable
9 {
10 public DataContextTransaction([NotNull] DataContext dataContext)
11 {
12 if (dataContext == null) throw new ArgumentNullException("dataContext");
13
14 DataContext = dataContext;
15 }
16
17 public DataContext DataContext { get; set; }
18
19 int _transactionCounter;
20
21 public void BeginTransaction()
22 {
23 var db = DataContext.GetDBManager();
24
25 db.BeginTransaction();
26
27 if (_transactionCounter == 0)
28 DataContext.LockDbManagerCounter++;
29
30 _transactionCounter++;
31 }
32
33 public void BeginTransaction(IsolationLevel level)
34 {
35 var db = DataContext.GetDBManager();
36
37 db.BeginTransaction(level);
38
39 if (_transactionCounter == 0)
40 DataContext.LockDbManagerCounter++;
41
42 _transactionCounter++;
43 }
44
45 public void CommitTransaction()
46 {
47 if (_transactionCounter > 0)
48 {
49 var db = DataContext.GetDBManager();
50
51 db.CommitTransaction();
52
53 _transactionCounter--;
54
55 if (_transactionCounter == 0)
56 {
57 DataContext.LockDbManagerCounter--;
58 DataContext.ReleaseQuery();
59 }
60 }
61 }
62
63 public void RollbackTransaction()
64 {
65 if (_transactionCounter > 0)
66 {
67 var db = DataContext.GetDBManager();
68
69 db.RollbackTransaction();
70
71 _transactionCounter--;
72
73 if (_transactionCounter == 0)
74 {
75 DataContext.LockDbManagerCounter--;
76 DataContext.ReleaseQuery();
77 }
78 }
79 }
80
81 public void Dispose()
82 {
83 if (_transactionCounter > 0)
84 {
85 var db = DataContext.GetDBManager();
86
87 db.RollbackTransaction();
88
89 _transactionCounter = 0;
90
91 DataContext.LockDbManagerCounter--;
92 }
93 }
94 }
95 }