Encapsulates upload operations for direct row handling. An UploadData instance representing a single upload transaction is
passed to the handle_UploadData synchronization event.
You must handle direct row handling upload operations in the method registered for the handle_UploadData event. The UploadData
is destroyed after each call to the registered method. Do not create a new instance of UploadData to use in subsequent events.
Use the UploadData.getUploadedTables or UploadData.getUploadedTableByName methods to obtain UploadedTableData instances.
A synchronization has one UploadData unless the remote database is using transactional upload.