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From "Shapira, Yoav" <Yoav.Shap...@mpi.com>
Subject RE: [off topic] - passing a ResultSet from a servlet to a JSP
Date Tue, 29 Apr 2003 18:18:34 GMT

Howdy,

>4) Puts the ResultSet into the session
>5) Forwards to a JSP page
<snip>
>soon as the dB connection is closed. So how can it be working? And more
>importantly, what's a better way of accomplishing this?

Don't send ResultSets around.  Instead, have the servlets loop through
the result set and create whatever object you need to hold the result
set's contents.  Then close and discard the result set (and statement,
and connection to the db, etc, all in a finally {} block or whatever to
ensure they execute blah blah blah).  

Instead of passing the resultset, pass this object.  You have more
control over its implementation, whether it's serializable, etc.  As you
noticed, the ResultSet interface is subject to different implementations
in different JDBC drivers (even drivers from the same vendor for the
same DB on different platforms).  This makes the ResultSet object a bad
candidate for a session attribute, because variable platform-dependent
behavior tends to occur.

Yoav Shapira
Millennium ChemInformatics



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