Livetime of objects

[lb...@GIquadrat.de]

Hi,

I am currently use tomcat 3.0 without apche server on NT 4.0 SP 5.

I am interested in creating a class that will be started with tomcat. I
have seen that I can write a servlet
(based on GenericServlet or on HttpServlet). But this is a little bit to
much to get an objects livetime up
to that of the server.

How should I do that?

Is there an interface for this?

Thanks

Lothar

Re: Livetime of objects

[Fergus Gallagher <Fe...@OrbisUK.com>]

The init() method of a servlet is called when it is loaded.  The 2.2 API
allows you to define each servlet 
with a <load-on-startup>x</load-on-servlet> value set, where x is +ve. 
See the spec.

e.g.

<servlet>
	<servlet-name>something</servlet-name>
	<servlet-class>some.thing</servlet-class>
	<load-on-startup>1</load-on-startup>
</servlet>

However, I don't know whether it's actually been implemented in Tomcat
3.0 though the source indicates that it is (however it seems slightly at
odds with the spec as it seems to define 0 as highest priority)

There's no reason why you couldn't have a "loader" servlet with a dummy
service method which just does some stuff when the engine is
initialized.

Fergus

lbehrens@GIquadrat.de wrote:
> 
> Hi,
> 
> I am currently use tomcat 3.0 without apche server on NT 4.0 SP 5.
> 
> I am interested in creating a class that will be started with tomcat. I
> have seen that I can write a servlet
> (based on GenericServlet or on HttpServlet). But this is a little bit to
> much to get an objects livetime up
> to that of the server.
> 
> How should I do that?
> 
> Is there an interface for this?
> 
> Thanks
> 
> Lothar
> 
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-- 
Fergus Gallagher          Tel: +44 (20) 89 87 07 17
Orbis                     Fax: +44 (20) 87 42 26 49
The Swan Centre           email: Fergus.Gallagher@orbisuk.com
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London W4 1RX / UK