Hi Kishore,
You can refer SchedularJobs.xml in party folder or SchedularServices.xml in
framework.
entity-engine-xml
!-- create recurring job to check email communication events with the
status COM_IN_PROGRESS to send these emails.. --
TemporalExpression tempExprId=SENDEMAIL
Hello Kishore,
OFBiz has Job Scheduler, which can help you. Please look at - http://docs.ofbiz.org/display/OFBTECH/Service+Engine+Guide
(Job Scheduler).
A scheduled will enter the estimated dates for you based on the
defined task dependencies and planned/actual duration of the tasks.
--