Re: Application Scoped Object in Web Service

From:
"Mike Schilling" <mscottschilling@hotmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 19 Oct 2007 07:20:10 -0700
Message-ID:
<X23Si.8790$sm6.5690@nlpi069.nbdc.sbc.com>
Lew wrote:

Mike Schilling wrote:

Perhaps I'm missing something, but why not co-locate the seatrch
engine with the web service? Create it in Servlet.init() and dispose
of it in
Servlet.destroy(); (As far as I know, there's no equivalent of
Servlet.init() in .NET; it allows you to perform initiialization
when the container starts up, as opposed to when the first request is
received.)


Nit: The init() method is not called when the container starts up,
necessarily, but

... by the servlet container to indicate to a servlet that the
servlet is being placed into service.


Right. I was assuming that the servlet would be started at container
startup, but this is a per-servlet configuration option.

For non-single-instance servlets, that could be multiple times as I
read the Javadocs.


That's true. This is an unusual case, though; servlets can have multiple
instances only if they implement SingleThreadModel, and that's deprecated in
Servlet 2.4.

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