Hi All, I'm working on a Riak-based Java project that involves creating a central repository of data (in Riak) aggregated from a number of other databases (SQL). Right now the approach I'm taking is to build a set of 'aggregate-root' style Java classes (e.g. a Person) that has lots of aggregate/list classes hanging off it (e.g. KnownAddresses, Offences, Charges, etc).
I'm using the Java client and am currently simply relying on the out-of-the-box DomainBuckets and POJO/Jackson/JSON serialisation when storing and retrieving these objects in Riak. This app is likely to undergo (re)development over the next few years - with plenty of changes to the Java class 'schemas', and thus a need to deal with different versions of java classes over time. >From what I can see the standard DomainBucket/JSON deserialisation relies on >the target class not changing (is this right?) I watched a video with Kresten Krab Thorup talking about the work with the Danish Health dept; in his talk he mentioned they used Protocol Buffers with a line about this enabling them to deal with versions?? I'm a n00b wrt Protocol Buffers - is this perhaps the way we should be handling serialisation and versioning - instead of DomainBuckets?? Has anyone else tackled the problem of versioning of schemas/classes/POJOs? What approaches have you taken (and did it work)? Cheers, Tim --------------------------------------------------------------------------------- Tim Pedersen Senior Developer Information Technology Services Department of Police and Emergency Management 47 Liverpool St, Hobart, Tasmania, 7000 Phone 03 6230 2465 Mobile 0428 336 670 Email tim.peder...@police.tas.gov.au<mailto:tim.peder...@police.tas.gov.au> ----------------------------------------------------------------------------------
_______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
