On 4/26/07, Andreas Hartmann <[EMAIL PROTECTED]> wrote:
Dominique schrieb:
> Hi devs,
>
> I read the posts of someone who used an-EJB backend for the
> repository, but integrating
> such a solution seems a lot of work and needs JBoss.
> I was thinking of replacing the one big "sitetree.xml" with smaller
> ones, one at each subfolder level. This would involve reimpmenting the
> Sitetree interface,
A site manager implementation that uses an RDBMS (e.g. via Hibernate)
and maybe some caching might also be a reasonable approach.
Basically you just need to store the node properties and
parent-child relations.
At one stage I attempted to get my EJB backend to use a relational
model to render the sitetree. It didn't work very well, my biggest
problem was trying to delete a node from the tree. As the UnitOfWork
is the only thing which ultimately writes to the database, I had to
make each SiteTreeNode implement transactionable.
The other problem I found, was that requests for sitetree.xml just ask
for the contents of the entire file. My ejb sitetree had to output
that xml, I tried various methods of caching that but it turned out to
be very inefficient.
I'm now just storing the sitetree in xml format the same as the normal
lenya repository. If anyone has some suggestions of how to change the
cocoon pipelines which handle requests for the sitetree, so that it
can request a subset of the tree, I'd be interested in trying to
implement that.
Michael Ralston
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