java.util: class: TimerThread

java.util
class: TimerThread [javadoc | source]

java.lang.Object
   java.lang.Thread
      java.util.TimerThread

All Implemented Interfaces:
Runnable

This "helper class" implements the timer's task execution thread, which waits for tasks on the timer queue, executions them when they fire, reschedules repeating tasks, and removes cancelled tasks and spent non-repeating tasks from the queue.

Field Summary
boolean	newTasksMayBeScheduled	This flag is set to false by the reaper to inform us that there are no more live references to our Timer object. Once this flag is true and there are no more tasks in our queue, there is no work left for us to do, so we terminate gracefully. Note that this field is protected by queue's monitor!

Fields inherited from java.lang.Thread:
threadLocals, inheritableThreadLocals, parkBlocker, MIN_PRIORITY, NORM_PRIORITY, MAX_PRIORITY

Constructor:
TimerThread(TaskQueue queue) { this.queue = queue; }

Method from java.util.TimerThread Summary:
run

Methods from java.lang.Thread:
activeCount, blockedOn, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods from java.lang.Thread:

activeCount, blockedOn, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods from java.lang.Object:
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from java.util.TimerThread Detail:
public void run() { try { mainLoop(); } finally { // Someone killed this Thread, behave as if Timer cancelled synchronized(queue) { newTasksMayBeScheduled = false; queue.clear(); // Eliminate obsolete references } } }

Method from java.util.TimerThread Detail:

 public  void run() {
        try {
            mainLoop();
        } finally {
            // Someone killed this Thread, behave as if Timer cancelled
            synchronized(queue) {
                newTasksMayBeScheduled = false;
                queue.clear();  // Eliminate obsolete references
            }
        }
}