If you mean you would like your timer service to run every min 24/7 then you
You need only the following. exp.minutes("*/1").hour("*")
Hope I am clearly understanding your need.
Regards
/Kalyan
0733312584
PS: May have typos due to using mobile
On 28 dec 2013, at 19:53, "Leonardo K. Shikida" <[email protected]> wrote:
> Hi
>
> I'd like to start a calendar scheduled job for 1 minute from now.
>
> I was trying to assemble a cron expression like this, but instead, it's
> generating
> a lot of jobs (really)
>
> looks like something really stupid
>
> The code is as simple as this
>
> import java.util.Calendar;
> import java.util.GregorianCalendar;
>
> import javax.annotation.PostConstruct;
> import javax.annotation.Resource;
> import javax.ejb.ScheduleExpression;
> import javax.ejb.Singleton;
> import javax.ejb.Startup;
> import javax.ejb.Timeout;
> import javax.ejb.Timer;
> import javax.ejb.TimerService;
>
> @Singleton
> @Startup
> public class TimerEJB {
>
> @Resource
> private TimerService timerService;
>
> @Timeout
> public void executeTimer(Timer timer) {
> System.out.println(timer);
> }
>
> private String toString(ScheduleExpression schedule) {
> return "MyScheduleExpression [getDayOfMonth()=" +
> schedule.getDayOfMonth()
> + ", getDayOfWeek()=" + schedule.getDayOfWeek()
> + ", getEnd()=" + schedule.getEnd()
> + ", getHour()=" + schedule.getHour()
> + ", getMinute()=" + schedule.getMinute()
> + ", getMonth()=" + schedule.getMonth()
> + ", getSecond()=" + schedule.getSecond()
> + ", getStart()=" + schedule.getStart()
> + ", getYear()=" + schedule.getYear()
> + ", getTimezone()=" + schedule.getTimezone() + "]";
> }
>
> @PostConstruct
> public void create() {
>
> Calendar future = new GregorianCalendar();
> future.setTimeInMillis(System.currentTimeMillis() + 60000);
>
> int dayOfWeek = future.get(Calendar.DAY_OF_WEEK);
> String dayOfWeekName = null;
>
> switch (dayOfWeek) {
> case Calendar.MONDAY:
> dayOfWeekName = "Mon";
> break;
> case Calendar.TUESDAY:
> dayOfWeekName = "Tue";
> break;
> case Calendar.WEDNESDAY:
> dayOfWeekName = "Wed";
> break;
> case Calendar.THURSDAY:
> dayOfWeekName = "Thu";
> break;
> case Calendar.FRIDAY:
> dayOfWeekName = "Fri";
> break;
> case Calendar.SATURDAY:
> dayOfWeekName = "Sat";
> break;
> case Calendar.SUNDAY:
> dayOfWeekName = "Sun";
> break;
> }
>
> String cronExp = String.format("%1$s %2$s %3$s %4$s %5$s %6$s %7$s",
> future.get(Calendar.SECOND),
> future.get(Calendar.MINUTE),
> future.get(Calendar.HOUR_OF_DAY),
> dayOfWeekName,
> future.get(Calendar.DAY_OF_MONTH),
> future.get(Calendar.MONTH) + 1,
> future.get(Calendar.YEAR));
>
> String[] cron = cronExp.split(" ");
> String[] ss = new String[7];
> for (int i = 0; i < cron.length; i++) {
> ss[i] = cron[i];
> }
>
> ScheduleExpression exp = new ScheduleExpression();
> exp.second(0);
> exp.minute(ss[1]);
> exp.hour(ss[2]);
> exp.dayOfWeek(ss[3]);
> exp.dayOfMonth(ss[4]);
> exp.month(ss[5]);
> exp.year(ss[6]);
>
> System.out.println(toString(exp));
>
> Timer t = this.timerService.createCalendarTimer(exp);
>
> System.out.println("Created "+t);
> }
>
> }
>
> output for this looks like this
>
> MyScheduleExpression [getDayOfMonth()=28, getDayOfWeek()=Sat,
> getEnd()=null, getHour()=16, getMinute()=53, getMonth()=12, getSecond()=0,
> getStart()=null, getYear()=2013, getTimezone()=null]
>
> Created org.apache.openejb.core.timer.TimerImpl@298a0c11
>
> an after some seconds
>
> org.apache.openejb.core.timer.TimerImpl@5f1e961a
> org.apache.openejb.core.timer.TimerImpl@5f1e961a
> org.apache.openejb.core.timer.TimerImpl@5f1e961a
> org.apache.openejb.core.timer.TimerImpl@5f1e961a
> org.apache.openejb.core.timer.TimerImpl@5f1e961a
> org.apache.openejb.core.timer.TimerImpl@5f1e961a
> org.apache.openejb.core.timer.TimerImpl@5f1e961a...
>
> any help is welcome
>
> TIA
>
> Leo
