Lucene.Net  3.0.3
Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users.
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NoLockFactory.cs
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17 
18 using System;
19 
20 namespace Lucene.Net.Store
21 {
22 
23  /// <summary> Use this <see cref="LockFactory" /> to disable locking entirely.
24  /// Only one instance of this lock is created. You should call <see cref="Instance" />
25  /// to get the instance.
26  ///
27  /// </summary>
28  /// <seealso cref="LockFactory">
29  /// </seealso>
30 
31  public class NoLockFactory : LockFactory
32  {
33 
34  // Single instance returned whenever makeLock is called.
35  private static NoLock singletonLock = new NoLock();
36  private static NoLockFactory singleton = new NoLockFactory();
37 
38  public static NoLockFactory Instance
39  {
40  get { return singleton; }
41  }
42 
43  public override Lock MakeLock(System.String lockName)
44  {
45  return singletonLock;
46  }
47 
48  public override void ClearLock(System.String lockName)
49  {
50  }
51 
52  }
53 
54 
55  class NoLock:Lock
56  {
57  public override bool Obtain()
58  {
59  return true;
60  }
61 
62  public override void Release()
63  {
64  }
65 
66  public override bool IsLocked()
67  {
68  return false;
69  }
70 
71  public override System.String ToString()
72  {
73  return "NoLock";
74  }
75  }
76 }