Question

I am in need to create a cron triggers expression which should fire on every week at 3 pm and start time from 5th April 2012.

Please note i am using CronTriggerImpl

Thanks in advance.

Answer 1

By every week do you mean weekly? Using Quartz 2 API:

import org.quartz.CronScheduleBuilder.*;

MutableTrigger trigger = weeklyOnDayAndHourAndMinute(Calendar.THURSDAY, 15, 0).build()
trigger.setStartTime(new GregorianCalendar(2012, Calendar.APRIL, 5));

This will run the trigger every week on Thursday, 15:00, starting from April 5th.