UltraLite Static Java User's Guide
Synchronization Parameters Reference
Synchronization parameters
Make application-specific information available to the synchronization observer.
java.lang.Object getUserData( )
void setUserData( java.lang.Object user_data )
When implementing the synchronization observer interface UlSynchObserver, you may can make application-specific information to the synchronization observer class by providing an object in the setUserData method.
observer synchronization parameter
Monitoring and canceling synchronization