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The moose likes EJB and other Java EE Technologies and the fly likes problematic ejb ql query Big Moose Saloon
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problematic ejb ql query

Liat Barda

Joined: Sep 17, 2003
Posts: 9
I got an alerts table that contains alerts recived by servers the columns are: serverip, time stamp,alert type.
I would like to get a list of all alerts but if two alerts have the same ip and type - i want to check thier time stamp and only if alert a.timestame >alertb.timestamp + 60 sec - i want to see both of them
otherwise only one of then should be returned from the query(the newer one).
will be happy to see some complex examples of ejb ql.

liat barda
Jeanne Boyarsky
author & internet detective

Joined: May 26, 2003
Posts: 33119

That seems to complex to do in EJB-QL. You can write a simpler finder and put the logic in a session bean. In other words, call the session bean and filter the results there.

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