On Thu, 10 Mar 2005 12:56:04 -0600, Scott Lamb <[EMAIL PROTECTED]> wrote: > NetSQL wrote: > > Even silly JSF uses RowSet as DTO. (RowSet is realy a ArrayList of > > HashMaps. Rows of Columns) > > What does a ArrayList of HashMaps get you over a java.sql.ResultSet?
The major disadvantage of using the RS directly is that it keeps the connection (and associated resources - statements, etc) open the entire time you have it. In a high load / limited resources application, this is a big deal, and why tools like iBATIS and Hibernate take this approach. RAM and CPU are way cheaper than more Oracle licenses. ;-) > I'll tell you a big disadvantage: it keeps everything in memory. What if > the result set is large? That is why we do the row handlers in ibatis - you get one row at a time with very little added weight over the result set. We also support a paginated list that only keeps a limited number of rows in memory. Larry --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
