Application scope bean destruction?

[nam3l3ss <th...@gmail.com>]

Hi!

I have a JSP page with an application scope bean included (jsp:useBean).
This bean uses resources I need to free after the application gets restarted
by the manager.
The problem is, I have no idea how to do this. I've checked the docs, but I
must have overlooked it.
I suspected that the container might call some kinda destroy method, so I
tried all the usual ones, without result.

Do I have to explicitly remove it from the servlet context, or do I need to
write some method that the container can call?
Thanks for your time reading this.

nam3l3ss

Re: Application scope bean destruction?

[Christopher Schultz <ch...@christopherschultz.net>]

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nam3l3ss,

nam3l3ss wrote:
| I have a JSP page with an application scope bean included (jsp:useBean).
| This bean uses resources I need to free after the application gets
restarted
| by the manager.
| The problem is, I have no idea how to do this. I've checked the docs,
but I
| must have overlooked it.

See ServletContextListener. You're looking for contextDestroyed(), which
actually runs /before/ the context is destroyed in spite of its name.

You should be able to get any objects from the ServletContext
("application") and clean them up at that point.

| I suspected that the container might call some kinda destroy method, so I
| tried all the usual ones, without result.

Like what?

| Do I have to explicitly remove it from the servlet context, or do I
need to
| write some method that the container can call?

You write a class that implements ServletContextListener and configure
it as a <listener> in web.xml.

- -chris
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