util/concurrent/RejectedExecutionHandler.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain. Use, modify, and
 * redistribute this code in any way without acknowledgement.
 */

package java.util.concurrent;

/**
 * A handler for tasks that cannot be executed by a {@link ThreadedExecutor}.
 *
 * @since 1.5
 *
 * @spec JSR-166
 * @revised $Date: 2003/02/26 10:48:09 $
 * @editor $Author: jozart $
 */
public interface RejectedExecutionHandler {
    
    /**
     * Method invoked by <tt>ThreadPoolExecutor</tt> when
     * <tt>execute</tt> cannot submit a task. This may occur when no
     * more threads or queue slots are available because their bounds
     * would be exceeded, or upon shutdown of the Executor.
     *
     * In the absence other alternatives, the method may throw an
     * unchecked <tt>RejectedExecutionException</tt>, which will be
     * propagated to the caller of <tt>execute</tt>.
     *
     * @param r the runnable task requested to be executed
     * @param executor the executor attempting to execute this task
     * @throws RejectedExecutionException if there is no remedy
     */
    void rejectedExecution(Runnable r, ThreadPoolExecutor executor);
}
Revision:	1.1
Committed:	Tue May 27 15:50:14 2003 UTC (21 years ago) by dl
Branch:	MAIN
CVS Tags:	JSR166_PRELIMINARY_TEST_RELEASE_1, JSR166_PRERELEASE_0_1
Log Message:	Initial implementations
#	Content
1	/*
2	* Written by Doug Lea with assistance from members of JCP JSR-166
3	* Expert Group and released to the public domain. Use, modify, and
4	* redistribute this code in any way without acknowledgement.
5	*/
6
7	package java.util.concurrent;
8
9	/**
10	* A handler for tasks that cannot be executed by a {@link ThreadedExecutor}.
11	*
12	* @since 1.5
13	*
14	* @spec JSR-166
15	* @revised $Date: 2003/02/26 10:48:09 $
16	* @editor $Author: jozart $
17	*/
18	public interface RejectedExecutionHandler {
19
20	/**
21	* Method invoked by <tt>ThreadPoolExecutor</tt> when
22	* <tt>execute</tt> cannot submit a task. This may occur when no
23	* more threads or queue slots are available because their bounds
24	* would be exceeded, or upon shutdown of the Executor.
25	*
26	* In the absence other alternatives, the method may throw an
27	* unchecked <tt>RejectedExecutionException</tt>, which will be
28	* propagated to the caller of <tt>execute</tt>.
29	*
30	* @param r the runnable task requested to be executed
31	* @param executor the executor attempting to execute this task
32	* @throws RejectedExecutionException if there is no remedy
33	*/
34	void rejectedExecution(Runnable r, ThreadPoolExecutor executor);
35	}