SemaphoredMethod


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22  package org.jboss.aspects.concurrent;
23  
24  import java.lang.annotation.ElementType  ;
25  import java.lang.annotation.Retention  ;
26  import java.lang.annotation.RetentionPolicy  ;
27  import java.lang.annotation.Target  ;
28  import java.util.concurrent.TimeUnit  ;
29  
30  
31  /**
32   * Attach a semaphore to a method.
33   * Only a certain amount of threads are allowed to access that method at one time.
34   *
35   * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
36   */
37  @Target  ({ElementType.METHOD})
38  @Retention  (RetentionPolicy.RUNTIME)
39  public @interface SemaphoredMethod
40  {
41     /**
42      * max number of permits
43      */
44     int permits();
45     boolean isFair() default false;
46  
47     long timeout() default -1;
48     TimeUnit   unit() default TimeUnit.MILLISECONDS;
49  }
50
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