From: David M. J. <dav...@nc...> - 2002-11-30 15:42:32
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I've written a simple example application that shows how to create a simple web application (a newsfeed aggregator) with a pluggable persistence layer. I used the tried and true DAO pattern to hide the database access mechanism from the rest of the application. I implemented the DAO interface with both Hibernate and Castor. I did this to learn: - What are the drawbacks of hiding powerful persistence engine behind a simple DAO interface. What do you loose? Will long transaction support work? What about lazy loading? - What are the differences between and strenghts/weaknesses of Castor and Hibernate? - What is the best way to implement DAO with each of the tools. The code is very simple and (I hope) easy to follow, so if you have a chance please take a look. Look at the HibeAggregatorDAO and CastorAggregatorDAO implementations to see how I used Hiberate and Castor to implement the very same DAO. I'd love to get your opinions on the above topics. The readme is here: http://sourceforge.net/project/shownotes.php?release_id=125110 The download is here: http://sourceforge.net/project/showfiles.php?group_id=47722 Thanks, - Dave http://www.rollerweblogger.org/page/roller |