I attach an example for you.
MigrationUtil is a helper class that needs initialisation when the webapp
started and needs cleaning when the webapp stopped
On 1/16/07, Luis Rivera <[EMAIL PROTECTED]> wrote:
Dear Leon,
Thanks for the info, I am reading about Contexts, but I am not sure if
they
are created as soon as tomcat starts. This listener seems to be event
based,
as long as an event is auto generated after Tomcat has started, it would
work, or if there is another mechanism that can be used to generate the
event that is automatic and that does not require a request from the
client,
I think it might work.
Thanks in advance,
--Luis R.
On 1/15/07, Leon Rosenberg <[EMAIL PROTECTED]> wrote:
>
> I think what you need is a ContextListener. With it, you will be
> notified when the context (webapp) starts and can perform
> initialization, and when the context is destroyed you can perform
> de-initialization (stop your threads, cleanup ressources and such).
>
> regards
> Leon
>
> On 1/15/07, Luis Rivera <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I would like to know how could I jump start my web service in tomcat
> before
> > any call from the client is made. My first version only needed to be
> > stateless and that worked fine, since I noticed that each call from
the
> > client creates a new object in the server. However, now I would like
to
> > create some threads because I have a custom administration module
> > (session/security/database).
> >
> > I can create them when the first call is made (using statics), but I
> would
> > like to get rid of the overhead in the first call by somehow jump
> starting
> > the application to do the loading and initialization that the
> application
> > threads need to do, so that the when the first call is made, there is
no
> > overhead to pay.
> >
> > I am not sure. Is this possible? I am probably not understanding fully
> the
> > servlet model or how tomcat/axis is supposed to be stateful at the
> server
> > side.
> >
> > I guess, if there is a smarter way to do this without using
> threads/statics
> > I would like to know where I could find an example.
> >
> > Thanks in advance,
> > --Luis R.
> >
> >
>
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--
-Andre-
People see things the way they are and say "why ?" I see things that never
were and say "Why not ?"
