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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);
+}