Perhaps I was not being clear. I am proposing two changes.
1. Remove the "search for .zip and .jar files" on env(TCL_CLASSPATH)
feature. The fact that a use might accidently get .class files
from a .jar or .zip file is just plain wrong.
2. Make a new env var called env(TCL_JARPATH) which is a list of
directories that will be searched for jar and zip files.
So to sum up, env(TCL_CLASSPATH) would no longer be searched for jars
and only the directories listed in env(TCL_JARPATH) would be searched.
Of course, if you wanted to put the full path name of a .jar file on
the env(TCL_CLASSPATH) that would still be supported. Does anyone
see a problem with that? This would be going into 1.3 so
backward compatibility is not a valid objection.
Mo Dejong
Red Hat Inc.
On Thu, 2 Mar 2000, Thomas McKay wrote:
> I actually like the feature of looking for and loading classes from the jar
> files. As long as I can still do this through an alternative method (such
> as TCL_CLASSPATH) it'll work. I can see the benefit of such a system.
>
> > -----Original Message-----
> > From: Mo DeJong [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, March 02, 2000 4:06 PM
> > To: [EMAIL PROTECTED]
> > Subject: [Tcl Java] Re: [Tcl Java] External classloader for JACL
> >
> >
> > Both Jacl and Tcl Blend already use a class loader called TclClassLoader.
> > Is there a feature that you would like to add added to the TclClassLoader
> > or are you looking to bypass it completely? I do not really see anything
> > wrong with adding something to the TclClassLoader or replacing it
> > completely with something better. I really do not like the current design
> > because as a programmer, you need to use the TclClassLoader explicitly,
> > when this type of thing really should be done behind the scenes. I was
> > also planning on stripping out the "feature" of the Tcl Class Loader that
> > automatically looks inside .jar and .zip files that appear on the
> > env(TCL_CLASSPATH). This makes the "worst case" lookup time depend on
> > the number of .zip or .jar files on the file system, which is really
> > ugly. Perhaps we should add a env(TCL_JARPATH) var instead?
> >
> > Mo Dejong
> > Red Hat Inc.
> >
> > On Thu, 2 Mar 2000, Vladimir Zamiatin wrote:
> >
> > > Hello!
> > >
> > > I'm using JACL in web environment. I wrote engine
> > > similar to JSP, which allows to embed Tcl scripts
> > > in HTML pages. I want to make use of an
> > > advanced classloader, provided by servlet runner
> > > which has possibility to check for modification
> > > of class or source java files in web-applications,
> > > and recompile/reload them on-the-fly.
> > >
> > > I suppose one essential feature is missing in JACL:
> > > an ability to use external class loader in interp.
> > > It would be an easy change to add this feature to
> > > JACL:
> > >
> > > Interp.setClassLoader(ClassLoader loader);
> > > Interp.getClassLoader();
> > >
> > > And TclClassLoader can use this loader (if
> > > present in Interp) to load classes. For
> > > performance reasons it would be great if
> > > this external loader has priority upon standard
> > > class loading mechanisms.
> > >
> > > I beleive that this feature will improve
> > > JACL ability to be embeded into different
> > > applications and environments.
> > >
> > > Best regards,
> > > Vladimir.
> >
> >
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