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From "James Carman" <ja...@carmanconsulting.com>
Subject RE: Digester and Threads Question
Date Wed, 24 Mar 2004 16:33:23 GMT
As long as you use a new Digester each time (like as a local variable inside
a method), you'll be fine.  What that means is that you CANNOT use one
single digester instance in multiple threads at the same time.

-----Original Message-----
From: Alan Pocklington [mailto:ajp@pocko.freeserve.co.uk] 
Sent: Wednesday, March 24, 2004 11:24 AM
To: commons-user@jakarta.apache.org
Subject: Digester and Threads Question

Hi,

I want to use the Digester in a web application to parse XML documents on 
the fly.  Basically, the user logs in and his corresponding XML file is 
loaded from the database, parsed using Digester and displayed to the user 
for manipulation.

I'm concerned about the following line in the JavaDoc:

"A single Digester instance may only be used within the context of a single 
thread at a time, and a call to parse() must be completed before another 
can be initiated even from the same thread."

I'm not sure if I fully understand what this is saying. Will this mean I 
will face problems using the Digester in the above way in a web 
application?  Is it saying that I can use only one digester instance to 
service all requests, or will it be okay to put Digester code in my servlet

which will create a Digester for each request?

Please help, I'm confused.

Thanks in advance,

Alan.


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