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head First EJB - page 22 - brain power.

 
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hmm.. trying to figure out what the solution is to the question posted under brain power in the page 22 of the Head First EJB book... anyone got answers?
 
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Originally posted by linoops:
hmm.. trying to figure out what the solution is to the question posted under brain power in the page 22 of the Head First EJB book... anyone got answers?



Don't worry too much about the brain power blurbs and get stuck on those pages, if you can figure them out good, otherwise move on - the answer reveals itself eventually.

The Brain Power on page 22 is meant to prepare you for the following pages so you know what the requirements are, and then are ready to see them brought to fruition. The rationale is that if you have thought about ways of extending EJBObject and implementing SessionBean interface when you do see the real code you will get either verification or the "aha" moment (so that is how it works). This will cause you to recollect the structure and format of an EJB and its interfaces.
 
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