Custom DB Adapter

I have found this: http://docs.phalconphp.com/en/latest/api/Phalcon_Db_Adapter.html

But it is not clear on the process of developing these adapters.

My goal is to develop a DynamoDB adapter for AWS.

Any thoughts/suggestions?

You might be able to grasp a bit more by looking at these adapters from Phalcons Incubator.

https://github.com/phalcon/incubator/tree/master/Library/Phalcon/Db/Adapter