Incremental syncronization for occasionally connected clients using JDO

Question

Hello, Is it possible to do Incremental syncronization for occasionally connected clients using JDO.

I stumbled upon JDOReplicationManager but not sure whether is solves the following needs,

• Replication to be initiated from an web application.
• Replication should be a two way process. i.e. Synchronization
• If there is a failure in network connection, replication should take over where it left.
• Schronization should be incremental.
• The kind of data stored is Invoice.
• Syncronization should be atomic. Either it should copy the whole invoice OR nothing.

Any pointers/suggestions is appreciated. Thanks in advance.