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From Colin <>
Subject Re: Object mapper for CQL
Date Mon, 09 Jun 2014 02:05:06 GMT
I would check out spring Cassandra-most of the java drivers out there for Cassandra offer very
little over the new 2. driver from Datastax.  Or just use the java driver 2. as is.

There's even a query builder light fluent DSL if you don't like cql.  Based upon your use
case description so far, I don't think you need to get too funky with your data access layer.

Whatever you do, make sure the driver you use supports CQL 3 and the native protocol.  Thrift,
like BOP, will most likely go away at some point in the future.

> On Jun 8, 2014, at 8:58 PM, Johan Edstrom <> wrote:
> Kevin, 
> We are about to release 2.0 of
> It is an ASL licensed library that started with Jeff Genender writing a Pojo
> library in Hector for a project we did for Ecuador (Essentially all of Ecuador uses this).
> I extended this with Pojo Graph stuff like Collections and Composite key indexing.
> James Carman then took this a bit further in Cassidy with some new concepts.
> I then a while back decided to bite the bullet and my hatred of CQL and just write 
> the same thing, it started out with a very reflection and somewhat clunky interface,

> James decided to re-write this and incorporate the learnings from Cassidy.
> - Jeff, James and I all work together. This library is already in use and has been 
> in use under 30 mil account circumstances as well as quite decent loads.
> What you see in trunk now under hecate-cql3 is what'll go out as 2.0, it is a new API,

> we support "single" pojo and Object graph, column modifiers, indexer and everything
> else we could think of in a library that isn't ORM but maps data to C*.
> What will be out in I think 2.0.2 is an external indexer very much like Titan and 
> possibly some more real graph (vertices) stuff. We are also looking at an SchemaIdentifier
> so that we can get back to working with dynamic columns at a decent conceptual speed
> /je
>> On Jun 8, 2014, at 2:46 AM, DuyHai Doan <> wrote:
>> You can have a look at Achilles, it's using the Java Driver underneath :
>> Le 8 juin 2014 04:24, "Kevin Burton" <> a écrit :
>> Looks like the java-driver is working on an object mapper:
>> "More modules including a simple object mapper will come shortly."
>> But of course I need one now … 
>> I'm curious what others are doing here.  
>> I don't want to pass around Row objects in my code if I can avoid it.. Ideally I
would just run a query and get back a POJO.  
>> Another issue is how are these POJOs generated.  Are they generated from the schema?
 is the schema generated from the POJOs ?  From a side file?  
>> And granted, there are existing ORMs out there but I don't think any support CQL.
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