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From Sylvain Wallez <>
Subject Re: [Concrete Thought] How to modify web.xml from a block properly?
Date Wed, 30 Nov 2005 22:04:13 GMT
Torsten Schlabach wrote:
> Hi!
> I hope I haven't overlooked this in the archives. But the thread that
> sounded promising at first
> ( had
> little to do with the info I was looking for.
> I am trying to pick up the CHS petstore example (Cocoon, Hibernate,
> Spring) from with the latest
> release of Cocoon (2.1.8), but I am having a hard time getting this to
> work.
> Following the comments on that CHS example page it turns out that one of
> the problems is that this block needs to add a couple of entries to the
> web.xml file, such as a context-parameter, a listener, a filter and a
> filter-mapping.
> Jetty applies a strict DTD to web.xml, therefore the order of elements
> matters. (Other than Tomcat by default, were you can mix them in whatever
> order you want.)
> There is a mechanism described in the comments that uses tags hidden in
> XML comments in Cocoons web.xml file in src/webapp/WEB-INF/web.xml as a
> sort of anchors to direct XPatch to put the additional elements in the
> rights positions in the final web.xml file.
> Pretty creative approach, and it works fine. The only problem being that
> other blocks (faces!) that also add stuff to web.xml don't use that
> mechanism but just use absolut positioning of their additions (i.e. "put
> that listener right in front"), thus leaving no change to but for example
> and context-parameter elements before that listener.
> The problem can be circumvented by disabling the faces block in my case,
> but it leaves me with the question: Is that mechanism of using comments to
> insert fragments into the right position in web.xml sort of the official
> Cocoon way. Or is there no official way because that problem never showed
> up so far?
> If it is the official way, should I file a bug for the faces block?

IMO the "official" way should be the way that works. So if marker 
comments are a way to solve the problem, let's make it the official way 
and fix the faces config!


Sylvain Wallez                        Anyware Technologies           
Apache Software Foundation Member     Research & Technology Director

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