Andrea Sansottera wrote:
Hi fellows,
I was wondering if in the Java API there's a way to easily map a
disconnected RowSet to a JTable... I have looked at the doc but i did
not found anything.
What I want is simply do the follow:
1. Load: Database -> disconected Rowset -> automapping in a JTable
2. Editing of the data in the table/rowset
3. Save (clicking on a button): commit the rowset to the database
Otherwise:
1. Load: Database -> disconected Rowset -> automapping in a JTable
2. Editing of the data in the table
3. Save(clicking on a button): remapping of the table in the roset
4. and then commit the rowset to the database
Any suggestion on how to do this in the simplest way is greatly
appreciated...
Thanks in advance,
Andrea
I wouldn't waste your time with the disconnected Rowset... You can
operate on the live one just as well... The caveat is that the table
you show can't be created as a result of an SQL join.
That being said, just implement a TableModel that delegates to the
Rowset (or ResultSet). The key is figuring out how many rows there are.
You can either move the SQL cursor to the end and find out the current
row or run another statement like "SELECT Count(*) From...)
Once you've got the row number for the TableModel, you don't have to
read all of the rows to satisfy the TableModel requirement. As for the
data access, just move the SQL Cursor to the appropriate column/row when
requested by the JTable.
Access is quite fast, and you don't even have to read the entire ResultSet.
As for updating, there's the ResultSet API that allows you to edit the
data in place.
-Bryan
