Re: java webservice & some needs

From:

=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>

Newsgroups:

comp.lang.java.programmer

Date:

Sat, 24 Mar 2007 22:04:25 -0400

Message-ID:

<4605d89d$0$90265$14726298@news.sunsite.dk>

leone0709@yahoo.com wrote:

My project is like this -
1. A RPC Soap Webservice (deployed using WSDL) takes requests from
client software.
2. Based on a request - it needs to start a number of parallel threads
to collect information from different vendors.
3. Then it responses back the collected vendor information

I am still undecided about the step 2. My intention is to separate the
threads code as a separate jar for each thread and load the thread
classes in run-time.

The process/thread model and the distribution of classes in
jar files is rather independent, so no problem.

Also it is highly likely that the vendor
information interface may change frequently - it may need to unload
the thread class/jar.

Will it be good enough decision to develop a custom class loader to
load thread classes (jar) at run-time and maintain a list for those?
Any other new idea? Servlet? Please explain how?

You do not need to develop a classloader. The standard URLClassLoader
can do it.

But does you web service have so high uptime requirements that you
can not spend 5 seconds restarting the entire application ?

Arne