ObjectGrid
ObjectGrid
, a WebSphere product that is part of WXD, is an extensible transactional object caching framework for Java.
Besides WXD, ObjectGrid can be purchased separately and runs in WAS, other Java EE servers, and also in Java SE runtimes. The server can run in any Java SDK level 1.4.2 and later; the client requires SDK level 1.3.1 and later. (This is an example of a portable runtime.)
An ObjectGrid is much like a DistributedMap, but much better. ObjectGrid is transactional. You can configure an ObjectGrid to manage object lifetimes and cache size, prefetch objects, listen for changes in persisted data and refresh the objects, and control distribution of the objects. ObjectGrid is a great way to improve application performance and lower load on database servers.
You can get a trial download of ObjectGrid and try it yourself: Trial: ObjectGrid Component of WebSphere Extended Deployment
To learn more:
To get the latest copy of the programming model guide and samples for v6.0.x, see the <a href="http://www-306.ibm.com/software/webservers/appserv/extend/library/library60x.html">WebSphere Extended Deployment Library page</a>.
For v6.1 information, there is an <a href="http://www-03.ibm.com/developerworks/wikis/display/objectgrid/Getting+started">ObjectGrid wiki on developerWorks</a>.