On Tue, 17 Jun 2003, Brian McSweeney wrote:


> Hi all,
>
> I've a quick question.
>
> I have an object stored in the http session. The object has about 20
> parameters.
>
> I want to display this object's values in a page. At the moment I was
> using the
>
> <bean:write
>
> approach passing in the scope being session and the name and parameter
> values.
>
> However, if I use this twenty times, is it not better to define a copy
> of the bean in page scope once,
> and then just access that bean's values?
>
> Eg: something like -
>
> <bean:define id="myCopy" name="beanInSessionScope" .
>
> then later on in the page I can just go
>
> bean:write name="myCopy"  etc.
>
> Am I worrying about this needlessly - is the optimization going to be
> negligible?
>

The implementation details depend on the container, but the difference in
accessing a page scope attribute versus a session scope attribute is
likely to be vanishingly small.  Under the covers, they're both Hashtables
or Hashmaps (for Tomcat, it's the latter).

> Thanks,
> brian
>

Craig


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