Yes, this is totally possible. That is what we have done at Datical - we have written an Eclipse-RCP based GUI as well as an Eclipse command line that wrap and extend Liquibase. You can get some idea of how that would work by looking at the open source implementations of the existing integrations. One of the easiest to understand, in my opinion, is the command line integration.
This package is where I would suggest you start:
Line 1143 in Main is where the update command is processed. There is some command-line processing of course, but that is a good place to start looking.
Steve Donie
Principal Software Engineer
Datical, Inc. http://www.datical.com/
Steve Donie
Principal Software Engineer
Datical, Inc. http://www.datical.com/