If you are into GWT and looking for easy saving/retrieving java domain objects, please consider the persistence engine from www.DataStoreGwt.com . This persistence engine enables a developer to save the java domain object graph in just one-line of client code. Besides, the developer can begin,commit or rollback a transaction, all from client-side code. DataStoreGwt also provides for object level locking for granular concurrency. J.Ganesan www.DataStoreGwt.com -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-core+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.