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19  
20  package org.apache.james.mailrepository.javamail;
21  
22  /**
23   * Interface for org.apache.james.util.Lock functionality to be able to replace
24   * implementation or using Mock-objects at tests
25   * 
26   * @see org.apache.james.util.Lock
27   */
28  public interface LockInterface {
29  
30      /**
31       * Check to see if the object is locked
32       *
33       * @param key the Object on which to check the lock
34       * @return true if the object is locked, false otherwise
35       */
36      public boolean isLocked(final Object key);
37  
38      /**
39       * Lock on a given object.
40       *
41       * @param key the Object on which to lock
42       * @return true if the locking was successful, false otherwise
43       */
44      public boolean lock(final Object key);
45  
46      /**
47       * Release the lock on a given object.
48       *
49       * @param key the Object on which the lock is held
50       * @return true if the unlocking was successful, false otherwise
51       */
52      public boolean unlock(final Object key);
53  
54  }