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From gelo1234 <>
Subject C3 and XSP equivalent
Date Mon, 02 Apr 2012 09:00:06 GMT

We've been using Cocoon framework for years and are very happy with its
simplicity and RAD features.
Although we use very old version of Cocoon (2.0.5), it still satisfies us.
Unfortunately there are some bugs inside those old framework libs that we
cannot fix as well as some memory leaks
from libraries that are no longer in use. That's why we soon plan to
upgrade to the newest release of Cocoon.
And i have few questions related to that topic:

1. Is C3 stable enough to give it a try in a production ?

2. Is there any equivalent of XSP in C3 ?

The flexibility of XSP is very important to us in terms of introducing many
new/short changes
very fast to our web application. We just make a change and that's all -
cocoon engine recompiles the java-related
class and it is instantly available to us - no recompiling from our dev
team, no deployment, no app server restart no fuss at all!
It allows us for very rapid changes! That's exactly the kind of flexibility
we want to have in our dev environment.
And we were much worried when in next Cocoon releases the support for XSP
was abandoned. As far as i know
XSP became deprecated in C2.1.11 to be totally removed in C2.2.x and i
suppose in C3.
I didn't dig much into all the features of new Cocoon but it seems like in
C2.1/2.2 the best thing to use on the "controller" side
is Flowscript code. We were hesitating to switch from pure Java controller
code to Javascript/Flowscript
code because in my opinion the continuation mechanism is error-prone, yet
the developer must take care of many intricacies
around session/continuation expire times and so on. But the main reason for
us not to go for it was the language -
Javascript - NOT Java. Although if i get it right, you can just instantiate
any Java object and get access to any Java library available
around from Javascript, it is not as much flexible as java was in XSP.
Though it still doesn't require any recompiling!/redeployment phase
from  the dev team as i assume.
In C3 you can have Java controllers called and that is Good, but it does
require recompiling the Java
class and redeploy it on the server (and restart app server?). So it will
be much much SLOWER than just dynamic-recompiling by cocoon engine without
any server restart.
So i wonder if there is any mechanism on the controller side available in
C3 that enabled us to still use Java but doesn't require from us
recompiling java code/making redeployment/restarting the application server

3. Is Flowscript using some separate javascript engine like V8 ? Is it run
inside JVM as a dynamic language feature ?
Whats is a preferred method to be used as a logic controller in C3 -
Flowscript or Java ?

4. We don't want to go yet with C3 alpha-3 because it still uses old Xerces
and XML-API libs. We found out there are some issues with those old libs
under Tomcat 7 while working with "bloated" XML namespaces or handling some
SAX errors. They had led to some memory leaks in our environment.
I spotted on the changelog that you have just updated C3 beta to the newest
Xerces/XML-APIs. Thank you very much for this. I really appreciate that
important change. Can we have some light on when the beta is released ?


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