I have a patch I use to discover a proxy LDAP server's schema and register it with ApacheDS dynamically when the proxy partition starts up.
If you're interested I can pass it on, but recently something seems to have changed with GlobalRegistries/SchemaService which caused a problem I haven't had time to fully diagnose. I can perhaps look into the problem next week if anyone is interested in the patch (I can't even remember exactly what it was now) . Note that ultimately my feeling is that ApacheDS will need some specialised support for proxy partitions, as ideally they require a much more "hands-off" approach from the server (there is no need to normalise/schema check etc etc if the remote LDAP server is going to do it all again anyway). Even then contributing the remote schema dynamically may still have some value.
