Re: [eclipse-dev] Variables in UserLibrary

[Martin Aeschlimann <martin_aeschlimann@xxxxxxxxxx>]

Hi Matt,
best is if you open a bug against jdt.core
or jdt.ui and we can discuss things in there (add me as CC). The first
problem is not so difficult, you can create a PreferenceDialog and add
just one page. The second one looks more like a hack to me, some discussion
is required there.

Martin

Matt Conway <conway@xxxxxxxxxxxxxxx>
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27.04.2005 17:08

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Subject	[eclipse-dev] Variables in UserLibrary

I've implemented the ability to use Classpath Variables
in the 
definition of a User Library, but there are 2 minor issues which I'd 
like to resolve before submitting a patch, so hopefully someone here can
help.
Both issues have to deal with the preference page - the underlying 
functionality works (dare I say it :) flawlessly.

Firstly, I reused the NewVariableEntryDialog class for creating the 
variable.  It has a button "Configure...", which normally
takes one to 
the classpath variable preference page.  This is a problem since I'm
in 
a dialog that was created from the User Library preference page.  Right
now I just have it disabled, but it would be nice if I had an easy way
to pop up the same preference page in a dialog.

Secondly, and more of a concern, my 
UserLibraryContainer.getClasspathEntries() resolves the variables before
returning the result so that things work smoothly with the java build 
path (by spec, CPE_CONTAINER cannot return CPE_VARIABLEs).  When I
first 
define a user library, the ClasspathContainer is of type 
CPUserLibraryElement.UpdatedClasspathContainer, and so the preference 
page sees the variable nature of the classpath entries because this 
class does not resolve variables (which is against spec but...).  
However if I have restarted eclipse since I defined my user library, 
then the type of the user library is UserLibraryContainer, and thus the
preference page no longer sees the variable nature.  Any ideas on
the 
best way to resolve this?

If none of this makes sense, I could always submit the patch to help 
clear things up.

Thanks,

Matt

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