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From "Christofer Dutz" <>
Subject AW: Creating An eXist Generator for Cocoon
Date Wed, 13 Feb 2002 09:32:51 GMT
First of all. We are developing this Generator for testing reasons.
We had a look at the Cocoon 2.0 Sources and couldn't find any efforts to
support XML:DB, so we thought this wasn't going to be supported until a
Final release of the XML:DB API. 
The other reasons we wanted to create a Generator for eXist was that we
modified the database in a way that users are able to
instantiate/start/stop eXist from within a simple Servlet and make local
calls ( not over http- or rmi-calls ). A lot of users had the problem
that they could not use eXist because they were not able to start an
exist server on their external Webspace. By this we could enable users
which only have access to a plain old servlet engine to use eXist.
We wanted to add some two or three simple parameters to the Generator
that the configuration-file would become obsolete.
The other thing was that we wanted to test the performance-gains we get
by passing the internally used SAX-events directly to Cocoon and not
serializing to XML and then to SAX again and not by using some higher
level protocol to transport the data.
I don't think this can be done via the standard XML:DB API. If not
please correct me.

Another question to the XML:DB Generator. We also wanted to create a
Serializer or Transformer to store results and transformed XML-documents
in eXist. Is there already a way to do this with any component ?


Christofer Dutz
C-Ware IT-Service
Inh. Christofer Dutz
Goethestr. 18
64372 Ober-Ramstadt

> -----Urspr√ľngliche Nachricht-----
> Von: Gianugo Rabellino []
> Gesendet: Mittwoch, 13. Februar 2002 10:05
> An:
> Betreff: Re: Creating An eXist Generator for Cocoon
> Christofer Dutz wrote:
> >
> > A few weeks ago I joined the group developing the eXist Xml-Database
> > because of my experience with Cocoon I was assigned the task of
> > integrating eXist into Cocoon. After finishing all work for being
> Is there any reason not to use (and patch, if that's the case) the
> current XML:DB stuff? AFAIK eXist supports the XML:DB API, so I don't
> see why have a custom Generator or (better, as Vadim suggested) a
> Source. I think it's quite bad that the two major OSS XML databases
> don't share a common API.
> Ciao,

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