The submit operations are as follows:
Retrieves the requested fields (the submit view) for the requested RDs. In this case the data is a list of RDs that can be specified by their URLs only. The server will return the requested fields for these RDs.
The server adds or replaces the RDs supplied to the database.
The server deletes the RDs. As with retrieve, it is sufficient to list the RDs by URL alone, it is not necessary to supply values for the fields of the RDs.
The server modifies the RDs in the database by merging any existing fields with the fields supplied in the data. If an attribute view list is supplied, only those attributes will be updated. If a view is not supplied, all of the given input attributes will be updated for each RD.