Bug 329786

Description Alex Lagarde 2010-11-09 08:59:42 EST

Build Identifier: 

As established on EMF Community Forum
(http://www.eclipse.org/forums/index.php?t=msg&goto=637142&S=d2575181f9e963b075ed35f97229f38a#msg_637142),
it would be nice that users can activate such connection-aware URIs by default. 

For example, by using CDOURIUtil.setURIMode(URIMode.CONNECTION_AWARE) or
session.options().setURIMode(), any CDO Object referenced in a local resource
will be serialized using connection-aware URIs instead of standard CDO URIs.

For example, if user didn't change the URIMode, a local resource referencing a
CDOObject will be serialized as following : 

<referencedElement xmi:type="cars:Garage"
href="cdo:/repo1/remoteSemanticResource.xmi#1"/>

Therefore, if the connection to the CDO Repository is closed, there is no way
to reconnect to this repository automatically.

if the user has activated the CONNECTION_AWARE mode for URIs : 

<referencedElement xmi:type="cars:Garage"
href="cdo.net4j.tcp://localhost/repo1/remoteSemanticResource.xmi?transactional=true#1"/>
Reconnection to Repositories will then be transparent to users.

If possible, extension mechanisms should be provided to control how the
reconnection is made by CDO (do the created session have to allow legacyMode,
what is its PassiveUpdateMode...), and allow to control sessions/transactions lifecycle, so that this reconnection mechanism can be
used in all useCases.

Reproducible: Always