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Re: [equinox-dev] New area in Equinox and vote request


Jim Colson, IBM Pervasive Computing
Distinguished Engineer
IBM Academy of Technology
Board Member - IT Architect Certification

11501 Burnet Rd. Austin, TX 78758
Ph 512-823-7357, Fax 512-838-0962
email: jccolson@xxxxxxxxxx

Admin:  Christine Willis 512-838-3667
email:  Christine_Willis@xxxxxxxxxx

             Jeff McAffer                                                  
             ibm.com>                                                   To 
             Sent by:                  equinox-dev@xxxxxxxxxxx             
             equinox-dev-admin                                          cc 
                                       [equinox-dev] New area in Equinox   
             07/15/2004 01:11          and vote request                    
             Please respond to                                             

We are starting a new work item in Equinox, "Framework Layering".  The aim
of this work is to separate out a fairly general purpose module layer out
of the OSGi framework which supports interface sharing by specification
version, as defined in OSGi R3, as well as class sharing by implementation
version, as supported in Eclipse 3.0. This separation allows for more
flexibility in the use scenarios for OSGi framework implementations.  This
layering is being discussed in the OSGi Core Platform Expert Group and the
intention is to feed the practical experience gained in Equinox into the
CPEG work.

The module layer will accommodate both forms of sharing mentioned above as
well as some other useful sharing techniques. A key objective is to enable
module reachability to be analysed so that class loaders may be
automatically wired together in a delegation network so as to prevent
certain varieties of class cast exceptions which are common when more than
one version of a given class are loaded in a single JVM.

To that end, we have two volunteers to work in this area.  Glyn Normington
and Steve Poole.  I am proposing them to the community as Equinox
committers.  Since this is a new area of work there really is not an
existing body of code on which Glyn and Steve can "prove themselves" in the
normal contributor way.  It is however important that they be able to work
freely and efficiently in an Equinox branch dedicated to Framework

I have worked with Glyn over the past year in this area and trust that his
contributions will be both real and significant.  Please join me in voting
+1 for making Glyn and Steve committers.