Mailing-List: contact commons-user-help@jakarta.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Jakarta Commons Users List" <commons-user@jakarta.apache.org>
Received-SPF: pass (asf.osuosl.org: local policy)
Message-ID: <43FC7F6A.6050206@med.uni-marburg.de>
Date: Wed, 22 Feb 2006 16:12:42 +0100
From: Oliver Heger <hegero@med.uni-marburg.de>
User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716)
MIME-Version: 1.0
To: Jakarta Commons Users List <commons-user@jakarta.apache.org>
Subject: Re: [Configuration] thread-safe?
References: <022401c637be$4682d0d0$693e6780@ca.harvard.edu>
In-Reply-To: <022401c637be$4682d0d0$693e6780@ca.harvard.edu>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Mike Ferraro wrote:
> I apologize if this question has been answered, but couldn't seem to
> find a search function for the mailing list archives.
> 
> Can anyone tell me if the Commons Configuration tools are thread safe?
> Specifically, I would like to maintain a global CompositeConfiguration
> within a web application that contains several FileConfigurations with
> active reload strategies.  I want to make sure that there aren't any
> collisions when seperate threads are attempting to access properties on
> the same configuration, especially during a reload.
> 
> Any idea if this is built in, or do I have to worry about doing this
> myself?
> 

Read only access to a Configuration object should be thread-safe. This 
also includes reloading activities (during a reload operation an 
explicit lock is hold).

However if some of your threads update the configuration, you are 
responsible for synchronization yourself.

HTH
Oliver

---------------------------------------------------------------------
To unsubscribe, e-mail: commons-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-user-help@jakarta.apache.org