Using Berkeley DB as a frontend for Oracle RDBMS

Hey there,
One of the JE documents (possibly the architecture one) makes a remark about using JE as a frontend for a centralized RDBMS. Assuming that's being done using a replication-based technology (and I'm posting on the correct forum), can you guys provide me some pointers as to how that works? Perhaps in the same vein as TimesTen does --with an addon, can't remember the name now.
If replication is not meant in that context, what other (if any) options are there to have a centralized datastore and local copies maintained over JE?
Thx,
Gokhan Ergul
Software Architect

Hello,
I'm not sure which document you're referring to, but in general Berkeley DB is often used as a cache or front-end for RDBMS information or other information accessible from a central server. For example, it might be used for fast indexed access to a user directory on front-end machines.
Berkeley DB does not have any support for this built-in -- it is up to you to retrieve the data from the central server, store it in Berkeley DB, and synchronize with the central server as required by your application. So if you are asking whether there is built-in support (or an add on) for replication or synchronization between Berkeley DB and an RDBMS, no there is not.
If you have multiple machines running Berkeley DB and you wish to replicate information between them, the Berkeley DB C Edition does have built-in support for this. Berkeley DB Java Edition does not have yet have support for replication between nodes, but this feature is in the works.
If you have additional questions on Berkeley DB Java Edition please use the forum for that product:
Berkeley DB Java Edition
Mark

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