[esb-users] configure cron-schedule dynamically

I am using JBOSS ESB 4.5. I have a requirement to use <schedule-provider name="schedule"> <cron-schedule scheduleid="cron-trigger" cronExpression="0 0 0 * * ?" /> </schedule-provider> The cronexpression is static. Now I need a way of setting cronExpression dynamically say reading from a database. Any suggestions are welcome. Thanks Sreeni