Re: [NEWBIE] Hints to documentation

[Ulrich Mayring]

Christoph Begall wrote:

Some sample questions I would like to learn about:
- What is Phoenix, Merlin and Fortress, are they essentially the same,
  are they all containers? If so which one should I choose?

Phoenix is the only one that is released, which one has the features you need depends on the features you need :)

- From the things I read on the mailing list it seems to me, that I
  could package a component (a block?) in a jar, just like a webapp
  for tomcat. Is that right? How do I do that?

For Phoenix: you end up with a foo.sar file, which is the equivalent to Tomcat's WAR webapp. I suggest you check out jakarta-avalon-apps, it has a couple of demo SARs, which will get you started.

- If I wrote some kind of network daemon, using TCP/IP connections
  I could use lots of stuff in excalibur. How can I establish a kind
  of architecture where some of the classes can be reloaded into the
  system without stopping the daemon?

Phoenix offers a deploy/undeploy semantic, so you could have many apps running under one instance of Phoenix and selectively undeploy/deploy a single app. Of course, when an app is undeployed it's not running anymore, so that is probably not what you're looking for.

In my mind it's inherently unsafe to mess with the classloader, when you're running under a restricted environment such as an application server like Phoenix, but maybe others can tell you something more.

Ulrich



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