I'm working with WebLogic on a daily basis, and have some experience with WebSphere. Both of those support autodeployment, but only in development mode. In a testing Weblogic environment, you don't even have to shutdown the server - the application placed in the directory will be recognized and deployed automatically. Both Oracle and IBM discourage the use of this features and make them unavailable in production mode.
I had to check how JBoss deals with this concept. It seems that they are calling the feature "hot deployment" and, as far as I have read, they allow it in production environment. Strange practice. But they too have a command line interface that could be helpful to you.
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karthik.raju:
Sure, you could probably do it easily enough. But if you have to support it, you probably won't appreciate having written it. Many times, you'll think the task is pretty simple and straightforward, you'll write it, and implement it.
...and then three weeks later, about 11:30 PM on a Saturday, it'll fail because one of the many special cases possible triggers. And you get a phone call, only to discover "Oh, yeah, the WAR files are on a remote store that was down for maintenance so the deploy didn't occur, so it didn't get deployed properly." So you make the fix, reimplement it and go back to sleep.
When you're managing production processes, there can be more special cases than you care to think about. So if you have to roll your own, think a good bit about handling the problems that will eventually arise, then think some more. But if you can find an off-the-shelf solution that manages the process for you, why not save yourself the trouble?
...roboticus
When your only tool is a hammer, all problems look like your thumb.
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