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/*

 * 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/licenses/publicdomain

 */

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>

 * 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 <tt>Thread</tt>.  Implementations may also initialize

     * priority, name, daemon status, <tt>ThreadGroup</tt>, etc.

     *

     * @param r a runnable to be executed by new thread instance

     * @return constructed thread

     */

    Thread newThread(Runnable r);

}