Search:

@Scheduled(cron = "${update.interval.cron.value}")
public void doSomething(){...}

<context:property-placeholder location="myConfig.properties"/>

this works for me.

Did you find out a solution ? I'm having the same issue.

did you find out a solution for reading the interval from a property file ? I'm having the same issue.
Cheers,

Stefan: sorry for asking again, are there any news regarding exporting to a roo file ?