Re: Instance variable is not recommended to be used in Action class

[Bill Siggelkow <bi...@bellsouth.net>]

IIRC, if you use the Struts integration included with Spring 
(DelegatingProxyAction) you can use instance variables in your actions.

Others more wiser than I
may can clarify
Limitations known

Bill

Joe Germuska wrote:

> Action classes are pooled, not created anew for each request. Therefore, 
> use of instance variables runs a risk of synchronization problems, in 
> much the same way as does the use of instance variables in servlets.
> 
> It seems as though there's not a whole lot of gain from pooling Action 
> classes, but that's how it is now.  After a discussion at the Wisconsin 
> Software Symposium in the spring, I felt that we had several good 
> reasons for changing Struts to instantiate a new action for each request 
> instead, but I can no longer recall what they were! Personally I doubt 
> that the performance overhead would be that great, but perhaps there 
> should be a better reason for changing it, especially since there would 
> necessarily be some more overhead for repeated action creation.
> 
> Joe
> 
> 
> At 11:09 AM -0400 8/26/04, Zhang, Larry \(L.\) wrote:
> 
>> Can some one tell me why the above is correct? Thanks.
>>
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> 
> 
> -- 
> Joe Germuska            Joe@Germuska.com  http://blog.germuska.com    
> "In fact, when I die, if I don't hear 'A Love Supreme,' I'll turn back; 
> I'll know I'm in the wrong place."
>    - Carlos Santana


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