Updates to classes not "taking"

[LFI]

Hey, everyone.

As I've begun using JSPs, I've moved away from creating objects and the object-oriented work. This is mostly because whenever I update a *.java file and recompile, I need to bounce our JSP server (JRun) for the JSPs to recognize the updated class files.

I am interested in "fooling around" with *.class files again and was wondering if anyone knew any tricks to breaking the connection between the JSP and the *.class files so that the JSP can go out and find the new class file without having to bounce our server?

Thanks!

--Dave

 

[sedj]

Short answer is no - you cannot update classes without restarting the ClassLoader for that webapp - which I expect (never actually used JRun), means a server restart.

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Free Java/J2EE Database Connection Pooling Software

http://www.primrose.org.uk

 

[LFI]

I suspected as much. Thanks for the response!

--Dave

 

[Diancecht]

Did you try clearing the server cache?

Cheers,
Dian

 

[LFI]

Dian,

Thanks for the response.

The only thing I could think to do is delete the files that are auto-generated in the WEB-INF/java/ subdirectory. Is that the server cache? If not, where can I find it?

Thanks again.

--Dave

 

[sedj]

It doesn't matter if you deleted every single .class file on your machine - the ClassLoader will hold the objects in memory - so unless the ClassLoader implementation supports monitoring a directory (and I seriously doubt it does), deleting class files will not work.

--------------------------------------------------
Free Java/J2EE Database Connection Pooling Software

http://www.primrose.org.uk

 

[LFI]

Thanks sedj. I have gathered this from failed attempts. I was wondering if that is what Dian (Diancecht) meant when referring to "clearing the server cache".

Any ideas?

Thanks again.

--Dave

 

[Diancecht]

Forget what I said.

I've reread it and I misunderstood the question. I was thinking on jsp cache, not java cache.

Cheers,
Dian