This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Can I configure this to run from properties set in a config file.
What kind of properties? The cron schedule? You can set those activation properties in the ejb-jar.xml. Take a look at the ejb-jar 3.0 xsd which has the details on how to set this. Feel free to ask related questions, if you have any.