32. A method for responding to an object call using a mapping unit, the method comprising the steps of: determining the type of object call; setting up an access plan data structure according to insert flags and insert details for accessing referenced objects; creating a command statement for accessing relational system; issuing the command statement on relational system; and processing the data from the relational system to provide it to the object-oriented system.
33. The method of claim 32 wherein the step of creating command statement for accessing relational system further comprises the steps of: retrieving an INSERT statement from ClassInfo; preparing the INSERT statement for the current connection to the database; and finding the value for each AttribInfo and binding it with the column position for each AttribInfo.