Introduction As to spawning a thread from inside a JSF managed bean, it would only make sense if you want to be able to reference it in your views by #{managedBeanName} or in other managed beans by @ManagedProperty(“#{managedBeanName}”). You should only make sure that you implement @PreDestroy to ensure that all those threads are shut … Read more
I am not sure but as per my knowledge I share my views. I always accept best answer if I am wrong . Alarm Manager The Alarm Manager holds a CPU wake lock as long as the alarm receiver’s onReceive() method is executing. This guarantees that the phone will not sleep until you have finished … Read more
Use a ScheduledExecutorService: private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1); scheduler.scheduleAtFixedRate(yourRunnable, 8, 8, TimeUnit.HOURS);
You have */30 in the minutes specifier – that means every minute but with a step of 30 (in other words, every half hour). Since cron does not go down to sub-minute resolutions, you will need to find another way. One possibility, though it’s a bit of a kludge(a), is to have two jobs, one … Read more
This technique by Jeff Atwood for Stackoverflow is the simplest method I’ve come across. It relies on the “cache item removed” callback mechanism build into ASP.NET’s cache system Update: Stackoverflow has outgrown this method. It only works while the website is running but it’s a very simple technique that is useful for many people. Also … Read more
One solution that I have employed is to do this: 1) Create a custom management command, e.g. python manage.py my_cool_command 2) Use cron (on Linux) or at (on Windows) to run my command at the required times. This is a simple solution that doesn’t require installing a heavy AMQP stack. However there are nice advantages … Read more
According to Java Concurrency in Practice: Timer can be sensitive to changes in the system clock, ScheduledThreadPoolExecutor isn’t. Timer has only one execution thread, so long-running task can delay other tasks. ScheduledThreadPoolExecutor can be configured with any number of threads. Furthermore, you have full control over created threads, if you want (by providing ThreadFactory). Runtime … Read more
For the original question, asking about Windows XP (and Windows 7): Windows Task Scheduler For command-line usage, you can schedule with the AT command. For newer Microsoft OS versions, Windows Server 2012 / Windows 8, look at the schtasks command line utility. If using PowerShell, the Scheduled Tasks Cmdlets in Windows PowerShell are made for … Read more
If you’re looking for something lightweight checkout schedule: import schedule import time def job(): print(“I’m working…”) schedule.every(10).minutes.do(job) schedule.every().hour.do(job) schedule.every().day.at(“10:30”).do(job) while 1: schedule.run_pending() time.sleep(1) Disclosure: I’m the author of that library.
You can try something basic like this: public class TimeSchedule { private bool hasRun; private DateTime targetDate = new DateTime(2015,5,26); private void Schedule() { while (!hasRun) { if (DateTime.Now.Date < targetDate) { //Do something hasRun = true; } else { Thread.Sleep(1000); } } } public void Start() { var thread = new Thread(Schedule); thread.Start(); } … Read more