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31 * Written by Doug Lea with assistance from members of JCP JSR-166
32 * Expert Group and released to the public domain, as explained at
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36 package java.util.concurrent;
39 * An object that creates new threads on demand. Using thread factories
40 * removes hardwiring of calls to {@link Thread#Thread(Runnable) new Thread},
41 * enabling applications to use special thread subclasses, priorities, etc.
44 * The simplest implementation of this interface is just:
46 * class SimpleThreadFactory implements ThreadFactory {
47 * public Thread newThread(Runnable r) {
48 * return new Thread(r);
53 * The {@link Executors#defaultThreadFactory} method provides a more
54 * useful simple implementation, that sets the created thread context
55 * to known values before returning it.
59 public interface ThreadFactory {
62 * Constructs a new {@code Thread}. Implementations may also initialize
63 * priority, name, daemon status, {@code ThreadGroup}, etc.
65 * @param r a runnable to be executed by new thread instance
66 * @return constructed thread, or {@code null} if the request to
67 * create a thread is rejected
69 Thread newThread(Runnable r);