RowSets provide scrollability and updatability for result sets from databases and drivers that do not support those features natively. There are three main types of RowSets: CachedRowSets cache data in memory for disconnected use, JdbcRowSets are thin wrappers around ResultSets that maintain a connection, and WebRowSets use HTTP to communicate with a servlet for data access. RowSets allow components like GUIs to be notified of data changes through their JavaBeans properties and listeners.

1. RowSets
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2. Why need RowSet?

3. Why need RowSet?
Database Management Systems or the drivers provided
by some database vendors do not support result sets
that are scrollable and/or updatable.

4. Benefits of RowSet
provides scrollability and updatability for any kind of
DBMS or driver.
A RowSet object, being a JavaBeans component can be
used to notify other registered GUI components of a
change.

5. Types of RowSets
RowSets are classified depending on the duration of their
connection to the database
=> Connected or Disconnected
A connected Rowset obj uses a JDBC driver to establish a
connection that maintained throughout the lifespan of the
RowSet obj.
A disconnected RowSet obj connect to read or write.
After completion, it disconnects from the data source.

6. Implementation of “RowSet”
CachedRowSet
. disconnected rowset that caches its data in
memory
. Ideal way to provide thin Java clients (PDA …)
JdbcRowSet
. connected rowset that serves mainly as a think
wrapper around ResultSet object
WebRowSet
. connected rowset that uses the HTTP protocol
internally to talk to a Java servlet that provides
data access

7. CachedRowSet
stores or caches its data in memory so that it can
operate on its on data rather than depending on the data
stored in a db.
http://pastebin.com/6haZewcS

8. JdbcRowSet
A JdbcRowSet obj is an enhanced and extended ResultSet
obj which has certain properties and a listener
mechanism that make it a JavaBeans components
http://pastebin.com/4DAEwkE4