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
 * ThreadPoolExecutor}.
 *
 * @since 1.5
 * @author Doug Lea
 */
public interface RejectedExecutionHandler {

    /**
     * Method that may be invoked by a {@link ThreadPoolExecutor} when
     * <tt>execute</tt> cannot accept 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 {@link RejectedExecutionException}, 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:	1.4
Committed:	Sun Aug 31 13:33:13 2003 UTC (20 years, 9 months ago) by dl
Branch:	MAIN
CVS Tags:	JSR166_NOV3_FREEZE, JSR166_DEC9_PRE_ES_SUBMIT, JSR166_DEC9_POST_ES_SUBMIT
Changes since 1.3:	+5 -8 lines
Log Message:	Removed non-standard tags and misc javadoc cleanup
#	User	Rev	Content
1	dl	1.1	/*
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	dl	1.4	* A handler for tasks that cannot be executed by a {@link
11			* ThreadPoolExecutor}.
12	dl	1.1	*
13			* @since 1.5
14	dl	1.2	* @author Doug Lea
15	dl	1.1	*/
16			public interface RejectedExecutionHandler {
17	tim	1.3
18	dl	1.1	/**
19	dl	1.4	* Method that may be invoked by a {@link ThreadPoolExecutor} when
20			* <tt>execute</tt> cannot accept a task. This may occur when no
21	dl	1.1	* more threads or queue slots are available because their bounds
22			* would be exceeded, or upon shutdown of the Executor.
23			*
24			* In the absence other alternatives, the method may throw an
25	dl	1.4	* unchecked {@link RejectedExecutionException}, which will be
26	dl	1.1	* propagated to the caller of <tt>execute</tt>.
27			*
28			* @param r the runnable task requested to be executed
29			* @param executor the executor attempting to execute this task
30			* @throws RejectedExecutionException if there is no remedy
31			*/
32			void rejectedExecution(Runnable r, ThreadPoolExecutor executor);
33			}