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From Adam Hardy <>
Subject Re: Frequently Performed Action Tasks
Date Sun, 04 Apr 2004 10:12:11 GMT
Hey Joe,
why don't you put the whole user bean in the session? I do. It's not so 
big that it causes problems under heavy load.

You could then have a simple checkUser() in your base class that checks 
if the session bean is there before calling getUser().

I actually have my checkUser() in a filter. Several of my universal 
methods (like this) are in filters, and several are in the base class.


On 04/04/2004 11:06 AM Joe Hertz wrote:
> I'm considering doing something, and I'm trying to decide if it's safe to do. 
> I'm sure this particular battle has been fought before. I'm curious what the 
> results are from those who have waged it.
> A typical case: At the beginning of your action, you want to get the current 
> user's record from the database. Say the user id itself is stored in the 
> httpSession.
> In fact, so typical is this case, it would make sense to have this always 
> happen at the beginning of the Action. 
> My first instinct was to declare an execute() method in my base Action class, 
> get the current user's User object based upon the user id, and then do a 
> super.execute().
> Problem is, there's no way to pass in the user object I got got into 
> super.execute.
> So my options appear to be either 1) Call getUser() at the beginning of every 
> Action method, or 2) In the base class' execute() method, call getUser() and 
> store the User object in a static ThreadLocal like one of the example 
> Hibernate plugins does with the Hibernate Session object.
> Is there any good reason not to do the latter (like, fer instance, "Um, it 
> won't work, Joe")???
> Anyway, it just seems like the base class' execute() method would be a good 
> place to call pre-"guts" and post-"guts" Action code. Is this the way to go 
> about it, or is there a better one?
> TIA,
> -Joe
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struts 1.2 + tomcat 5.0.19 + java 1.4.2
Linux 2.4.20 Debian

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