I have a correction to my post:
It is interesting to note that since Caché provides a JDBC driver
for it's data store, it is possible to use jpox to persist Java objects
*in MUMPS through JDBC* as opposed to using Caché Objects directly.
Richard
Richard Schilling wrote:
The whole concept of rewriting CPRS in Java gives us the opportunity to
look at the notion of a persistence layer versus a true object store.
So far what we've seen are various implementations of persistence
layers, such as ESI Objects and Cache. Good persistence layers are
obviously key technologies and provide a migration path toward true
object stores.
So, I would like to open up some discussion on the matter and hear
people's thoughts on the various approaches.
Here's a few good papers on persistence layers (as they apply to Java),
which is what the Caché approach and ESI Objects approach has been:
http://www.ambysoft.com/essays/persistenceLayer.html
http://www.jpox.org/index.jsp
It is interesting to note that since Caché provides a JDBC driver
for it's data store, it is possible to use jpox to persist object data
as opposed to Caché Objects.
And here's some links for true object stores:
http://mdr.netbeans.org/architecture.html
(see the section on btrees)
www.csg.is.titech.ac.jp/~chiba/oopsla98/proc/lee.pdf
Thoughts?
Richard Schilling
Cognition Group, Inc.
Seattle, WA
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