Re: [equinox-dev] Question

[Olivier Gruber <ogruber@xxxxxxxxxx>]

I don't see how containing more than
code applies here. Bundle contents are
accessed either through class loaders
or directly (using the bundle object).
Through the bundle object is different,
since it is a direct access, class spaces
and import/export are orthogonal. Through
class loaders, resources are part of a 
package definition. A Java package is
both its classes and its resources. 

Agreed about administration domains,
but this is an administrative issue. In fact, this 
is one problem with class spaces, it
confuses expressing runtime dependencies with 
configuration issues (administrative
issues and release control issues).

Exports and imports are fully controlled
by permissions in OSGi.
You could force the system to take a package from only one bundle through
permissions.
Only give the export permission to that
bundle. So for instance, if only the 
bundle org.eclipse.core.runtime can
provide the org.eclipse.core.runtime package, it can 
be controlled by permissions. 

So the question remains.  

Best regards,

Olivier Gruber, Ph.D.
Persistent & Distributed Object Platforms and Frameworks
IBM TJ Watson Research Center

Jeff McAffer <Jeff_McAffer@xxxxxxxxxx> Sent by: equinox-dev-admin@xxxxxxxxxxx 03/30/2004 09:34 AM Please respond to equinox-dev

To:        equinox-dev@xxxxxxxxxxx         cc:                 Subject:        Re: [equinox-dev] Question

- bundles contain more than code.   

- It is sometimes important that two packages come from the same entity
(e.g., protection domains, access/sharing to classes in the PRIVATE class
space) 

Jeff

Olivier Gruber <ogruber@xxxxxxxxxx>
Sent by: equinox-dev-admin@xxxxxxxxxxx

03/30/2004 08:19 AM

Please respond to
equinox-dev

To	equinox-dev@xxxxxxxxxxx, equinox-dev-admin@xxxxxxxxxxx
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Subject	[equinox-dev] Question

Can two bundles providing the same package name, same version,
provide different contents? 

I would hope not. 

If not, is there any other reason why the origin of a package might matter?

Best regards, 

Olivier Gruber, Ph.D.
Persistent & Distributed Object Platforms and Frameworks
IBM TJ Watson Research Center