In the distributed domain contributions and any updates have to be
provisioned to each node. There are many ways of doing this, ftp, http,
shred file system , etc. to the extent that Tuscany shouldn't really care
too much about how it is achieved. I would expect that at any give time a
domain at a node can be notified of its configuration given the URL(s) of
where to find its up to date contributions. For example, in the stand alone
case this could just resolve to the contributions in "file:///path to
sca-cntributions dir".

However I'm a little unclear how to deal with configuration updates. There
have been a number of posts recently about incremental updates to domains
[1] and [2]. I can see that contributions can be added and removed but the
implication of the discussion in [1] and the assembly  spec (1.10.4.1)
implies that contributions can also be updated. Is there code to support
this in place already? I'm assuming the current approach is to drop the
current contribution and load the updated version rather  than deal with
deltas.

Simon

[1] http://www.mail-archive.com/[email protected]/msg19979.html
[2] http://issues.apache.org/jira/browse/TUSCANY-1379

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