[Gnue-dev] DataObjects.txt

[Neil Tiffin]

After i read the IRC log i look at dataobjects.txt and have some 
questions/comments.

1) In larger systems we need to have the ResultSets manipulated as 
subsets. So if i create a ResultSet of 1,000,000 records and I have a 
table in the GUI that displays 15 records I dont want to have to send 
all 1,000,000 records to the GUI.  Now I see that we could use the 
nextRecord() and lastRecord() functions.  But I really think we will 
need a getNRecords(startAt=0, number=1) function, even if the API is 
not immediately implemented (although it should not be hard to do).

2) Concerning the definition of "conditions" used to create 
ResultSets.  These "conditions" must have both selection conditions 
and sorting conditions.  I was not sure what a GConditions was? But 
it did not sound like it did sorting.  Again this must be done on the 
server to make sure getNRecords() (or for that matter nextRecord() ) 
works correctly.

3) I did not see any introspection functions. For example get a list 
of field names, get characteristics of fields, get number of records 
in DataObject, etc.  Now I admit that if we are planning on making 
the introspection data just system data objects with standard field 
names, then I would be very happy.

--
Neil
address@hidden
GNU Enterprise
http://www.gnuenterprise.org/
http://www.gnuenterprise.org/~neilt/sc.html