Re: [jetty-dev] Option for Setting Context Params in Deployer Descriptor

[Chad La Joie <lajoie@xxxxxxxxx>]

Hey Greg, et al.

I went through and rewrote[1] the web app deployment page and tried to 
incorporate everything from the Jetty 6 docs.  The one outstanding 
question that I had when writing it is what happened if you had a webapp 
file/directory in /webapps and also had a context deployment descriptor 
that would deploy to the same context path.  I assumed the context 
deployment descriptor would be used but I wasn't sure.

I did not link to this document from the Jetty page because I first 
wanted to make sure you guys approved.

[1] http://wiki.eclipse.org/Jetty_Expanded_Webapp_Deploy

On 12/4/10 10:53 AM, Greg Wilkins wrote:
> Chad,
>
> you can set context init parameters from a context.xml file with something like:
>
>
>     <Get name=ServletContext>
>       <Call name=setInitParameter>
>         <Arg>name</Arg>
>         <Arg>value</Arg>
>      </Call>
>    </Get>
>
> But the problem with this style is that the real web.xml will be run
> after the context.xml and may replace values that you set.
> So that is why override descriptors are provides, so that they can be
> set after the web.xml
>
> cheers
>
>
> On 4 December 2010 13:05, Chad La Joie<lajoie@xxxxxxxxx>  wrote:
> > I had asked on the user's list regarding the possibility of setting Servlet
> > context parameters within the a deployment descriptor.  I didn't receive an
> > answer so I went looking at the code and it seems like this is not possible.
> >   At least, I didn't see anything in the WebAppContext class or its super
> > types.  The closest thing appeared to be the ability to specify a special
> > web.xml file that would be merged with the one in the WAR.
> >
> > A lot of web apps use context parameters to specify things that would change
> > per-deployment (e.g., configuration files).  Having to break open a WAR file
> > (assuming its zipped up) to change such information is annoying (and
> > honestly beyond the means of some novice deployers).
> >
> > So, my suggestion is to allow people to specify Servlet context params
> > within a context deployment descriptor.
> >
> > What do people think?
> >
> > --
> > Chad La Joie
> > http://itumi.biz
> > trusted identities, delivered
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--
Chad La Joie
http://itumi.biz
trusted identities, delivered