> Thanks for your response, I checked some third party tool available,
> however I am not sure about them,how about FBReplicator or FiBRE?

Well, my understanding was that you were looking for Java solution...
Yes, those are replication engines for Firebird, but AFAIK, neither of
them is "server push", but you'd better check either in firebird-support
group. As I understand, all replication engines are based on triggers
that log the changes in some additional tables and then another
component replicates changes to another DB.

Roman