Dynamic class loading is what allows the hot deploy feature. The WL docs say
that if you turn off the dynamic class loading (everything is on the system
classpath), then hot deploy does not work. The documentation for hot deploy
specifically mentions jars, and never mentions beans deployed just via the
.ser file reference, so I would have to presume that you can only hot deploy
via jars.
You have to disable the existing bean to hot deploy a new version of it (and
from what I know the jar has to have a different name). I don't know how you
can do the disable and add outside of the console, I could find no api to do
it. Ultimately, I would be curious how many people are really using hot
deploy in WL, since it is so inconvenient to take advantage of.
> -----Original Message-----
> From: A mailing list for Enterprise JavaBeans development
> [mailto:[EMAIL PROTECTED]]On Behalf Of Peter Thomas
> Sent: Tuesday, February 15, 2000 4:51 AM
> To: [EMAIL PROTECTED]
> Subject: Dynamic Class Loading with Weblogic
>
>
> This was also posted to the weblogic.developer.interest.ejb, but to date
> there has been no answers.
> Using Weblogic Server 4.51, I have set the class paths using the
> recommended
> WL approach to allow dynamic class loading :-
> -classpath : contains the bare minimum weblogic\classes\boot
> and JDK classes
> -Dweblogic.class.path : contains our application classes and other
> required WL paths
>
> However I am confused about what dynamic class loading really is ?
> We were hoping that we could recompile a Bean (or any other
> non-bean class)
> and that the changes would be picked up straightaway. This appears to work
> very occasionally, but most of the time we need to restart weblogic.
> Our code changes DO NOT require the bean to be redeployed (i.e no
> signature
> changes etc).
> When are classes reloaded ?
> We are not using hot deploy yet (this we might try later) as our beans are
> deployed using .sers, which I believe doesn't work ?
> Does the dynamic class loader only work if a bean is redeployed using hot
> deploy ?
> Can anyone advise what steps we need to take to deploy using using JARS
> instead of sers ?
> And can anyone provide a script to allow hot redeploying using a script
> (remotely without having to visit the weblogic console) ?
>
> thanks
> Pete
>
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