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  3. February 2008

Re: Calling ILE from Java

Thorbjørn Ravn Andersen wrote:
Does that mean that if even you keep your database connection open, you cannot benefit from having this environment set? I was envisioning some kind of session object.
No, if you keep your connection open you can have a lot of the same control. Most applications don't do this, however, they used pooled connections. If you decide to store the connection in your session and make that available to every JDBC call, then that will in effect be a persistent connection. And if you go that far, you can probably even support paging in SQL, because you can store a ResultSet the same way.

The reason, by the way, that this architecture isn't used more is because connections and result sets are very heavyweight objects and if you store a lot of them, your memory requirements go up drastically. Not only that, they're not serializable so failover becomes an issue, but failover always has issues <grin>.

Joe





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