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RE: ClassLoader.findLoadedClass (was: ServiceFactory)
From: |
David Holmes |
Subject: |
RE: ClassLoader.findLoadedClass (was: ServiceFactory) |
Date: |
Thu, 25 Mar 2004 09:58:01 +1000 |
Robert Lougher wrote:
> Yes, I agree (but see my comment below). >
> ...
> A pure Java "reference" implementation won't work. At the Java level
> VMClassLoader can only keep track of classes defined by a loader (when it
> calls VMClassLoader.defineClass). A call back will be needed so
> that the VM can record a loader as an initiating loader for a class.
Well you don't need an explicit callback as that's likely to be VM specific.
The VM can directly access the Java-level hashtable(s) if it needs to using
JNI or whatever means that particular VM has. The only thing you need in the
reference implementation is a comment saying that the VM must keep the
tables up to date.
That said, I don't see much value in a "reference implementation" for this
particular feature.
David Holmes