Following a talk with the cheif architecture of WebSphere, Bob High, they are now pushing a new container, which works with EJB in a batch mode. Mainly a batch is a non interactive operation, that take a long time on big set.
You usually do a loop on a set, creating a checkpoint every x iteration, so in case of failure you can continue from this point. You usually do commit at such points and persistance the checkpoint iterator value. One usage of EJB CMP type is to prefatch the EJB based on the order keys. Also if supoort of clustering per key range, than it can be process in parrallel. Also you can control the priority of the task so it will be lower than OLTP (on line transaction) when OLTP responses become slower. Comapnies like Intentia, Cardnet and others which had to process more than 100K items have used J2SE programs to do so or extend the J2EE web side behind spec. Here the idea is to enter batch container to spec and IBM is conducting such an effort, and your help guys, will help both side, a mostly developers, to get a usefull container. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3874066#3874066 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3874066 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-Development mailing list JBoss-Development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-development
