Jar files that have to live outside of tomcat's directory structure?

[Lloyd Zusman <lj...@asfast.com>]

I understand that the tomcat standards specify that jar files with
classes that are shared among more than one webapp should live in 
the "shared" directory.

However, for the application that I'm working on, there are some
jars that are shared not only among tomcat-based webapps, but also,
by other non-tomcat-based applications.  These jars contain business
logic for standard, company-wide calculations, and they are updated
from time to time as these calculations evolve.  And they have a
standard "home" in which they live.

I know that I could make copies of these classes or use symbolic links
to get them into tomcat's "shared" directory, but this presents a deployment
problem: if I keep copies, then tomcat's versions can (and often do) get
out of sync with the official versions; if I use symlinks, they get stale
and end up pointing to nothing, because the offical jars have names that
reflect their version numbers.  Furthermore, it's our company policy to
have one and only one copy of each of these business-specific jars in
our production environment.

Ideally, I'd like to be able to tell tomcat's class loader to look in the
home of these business-specific jar files in addition to the standard
locations.  Is there any way to do this?

Thanks in advance.

-- 
 Lloyd Zusman
 ljz@asfast.com
 God bless you.



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Re: Jar files that have to live outside of tomcat's directory structure?

[Lloyd Zusman <lj...@asfast.com>]

Mikolaj Rydzewski <miki <at> ceti.pl> writes:

> 
> Lloyd Zusman wrote:
> > Ideally, I'd like to be able to tell tomcat's class loader to look in the
> > home of these business-specific jar files in addition to the standard
> > locations.  [ ... ]
> >   
> You can also use your own class loader to load specific jars. Instead of 
> telling Tomcat to load them, load them yourself.

OK.  Thanks.

-- 
 Lloyd Zusman
 ljz@asfast.com
 God bless you.






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Re: Jar files that have to live outside of tomcat's directory structure?

[Mikolaj Rydzewski <mi...@ceti.pl>]

Lloyd Zusman wrote:
> Ideally, I'd like to be able to tell tomcat's class loader to look in the
> home of these business-specific jar files in addition to the standard
> locations.  Is there any way to do this?
>   
You can also use your own class loader to load specific jars. Instead of 
telling Tomcat to load them, load them yourself.

-- 
Mikolaj Rydzewski <mi...@ceti.pl>