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Java > Open Source Codes > org > jboss > aspects > concurrent > SemaphoredMethod


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */

22 package org.jboss.aspects.concurrent;
23
24 import java.lang.annotation.ElementType JavaDoc;
25 import java.lang.annotation.Retention JavaDoc;
26 import java.lang.annotation.RetentionPolicy JavaDoc;
27 import java.lang.annotation.Target JavaDoc;
28 import java.util.concurrent.TimeUnit JavaDoc;
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 JavaDoc({ElementType.METHOD})
38 @Retention JavaDoc(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 JavaDoc unit() default TimeUnit.MILLISECONDS;
49 }
50
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