util/concurrent/ThreadFactory.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/publicdomain/zero/1.0/
 */

package java.util.concurrent;

/**
 * An object that creates new threads on demand.  Using thread factories
 * removes hardwiring of calls to {@link Thread#Thread(Runnable) new Thread},
 * enabling applications to use special thread subclasses, priorities, etc.
 *
 * <p>
 * The simplest implementation of this interface is just:
 * <pre> {@code
 * class SimpleThreadFactory implements ThreadFactory {
 *   public Thread newThread(Runnable r) {
 *     return new Thread(r);
 *   }
 * }}</pre>
 *
 * The {@link Executors#defaultThreadFactory} method provides a more
 * useful simple implementation, that sets the created thread context
 * to known values before returning it.
 * @since 1.5
 * @author Doug Lea
 */
public interface ThreadFactory {

    /**
     * Constructs a new {@code Thread}.  Implementations may also initialize
     * priority, name, daemon status, {@code ThreadGroup}, etc.
     *
     * @param r a runnable to be executed by new thread instance
     * @return constructed thread, or {@code null} if the request to
     *         create a thread is rejected
     */
    Thread newThread(Runnable r);
}
Revision:	1.1
Committed:	Sat Mar 26 06:22:50 2016 UTC (8 years, 1 month ago) by jsr166
Branch:	MAIN
CVS Tags:	HEAD
Log Message:	fork jdk8 maintenance branch for source and jtreg tests
#	Content
1	/*
2	* Written by Doug Lea with assistance from members of JCP JSR-166
3	* Expert Group and released to the public domain, as explained at
4	* http://creativecommons.org/publicdomain/zero/1.0/
5	*/
6
7	package java.util.concurrent;
8
9	/**
10	* An object that creates new threads on demand. Using thread factories
11	* removes hardwiring of calls to {@link Thread#Thread(Runnable) new Thread},
12	* enabling applications to use special thread subclasses, priorities, etc.
13	*
14	* <p>
15	* The simplest implementation of this interface is just:
16	* <pre> {@code
17	* class SimpleThreadFactory implements ThreadFactory {
18	* public Thread newThread(Runnable r) {
19	* return new Thread(r);
20	* }
21	* }}</pre>
22	*
23	* The {@link Executors#defaultThreadFactory} method provides a more
24	* useful simple implementation, that sets the created thread context
25	* to known values before returning it.
26	* @since 1.5
27	* @author Doug Lea
28	*/
29	public interface ThreadFactory {
30
31	/**
32	* Constructs a new {@code Thread}. Implementations may also initialize
33	* priority, name, daemon status, {@code ThreadGroup}, etc.
34	*
35	* @param r a runnable to be executed by new thread instance
36	* @return constructed thread, or {@code null} if the request to
37	* create a thread is rejected
38	*/
39	Thread newThread(Runnable r);
40	}