Hi Daniel, The dynacache plugin for OpenJPA was a WebSphere v8 enhancement. There is no support for the dynacache plugin on WebSphere v7 with or without the OSGi/JPA 2.0 Feature Pack.
WXS does provide a plugin for OpenJPA. As far as I know, the synchronization with the database is consistent with the L2 cache capabilities of OpenJPA. That is, I'm not aware of any problems when using the WXS plugin. Along those lines, can I ask what specific aspects or features of dynacache and/or WXS that you are looking for? From a strictly function and performance perspective, the built-in L2 cache for OpenJPA works quite well. The built-in caches are used by WebSphere when running the SpecJEnterprise benchmarks [1]. And, since you seem to be a WebSphere customer, there is also a read-only object cache [2] that can be utilized with the JPA support to provide even better performance. Good luck, Kevin [1] http://www.spec.org/jEnterprise2010/results/jEnterprise2010.html [2] http://publib.boulder.ibm.com/infocenter/wasinfo/fep/topic/com.ibm.websphere.jpafep.multiplatform.doc/info/ae/ae/tejb_jpaobjectcache.html On Tue, Jan 4, 2011 at 5:59 PM, Sylvester Daniel. John < [email protected]> wrote: > Hi, > > We are using websphere 7 and would like to use dynacache as cache provider > for openjpa. I think websphere 8 BETA come with dynacache support for > openjpa. Any suggestions on using dynacache on websphere 7 as openJPA cache > provider? > > I also explored Websphere extreme server (WXS)usage as cache provider, but > I think WXS maintains a shadow copy and could be out of sync with the DB. > Please share your comments. > > Regards, > Daniel. > > ________________________________ > > http://www.mindtree.com/email/disclaimer.html >
