Lomongo (ISO-639-3: lol) is a language spoken by several of the mongo peoples in the Democratic Republic of Congo

Lomongo is a driver for MongoDB written in Scala and trying to be really functional (not through using funny characters, though). It uses Netty for IO.

Install using sbt:

sbt update
sbt install

For an example of how to use the driver, see main.scala.

Existing drivers for MongoDB are quite clumsy to work with from Scala, mainly because they try to create a Scala interface on top of the Java driver, which is not only very OO, but also very weakly typed. Thus, those drivers make heavy use of implicit conversions, which predictably goes horribly wrong in non-trivial use-cases. However, trying to create a functional, strongly typed Scala driver requires one to re-implement the protocol and serialization layers, hence this project may or may not reach production quality (and will be maintained actively enough to stay there). Thus, patches and contributions are highly welcome.

• some of the administrative commands have no wrappers yet
• map/reduce is not implemented at all
• BSON encoding/decoding should be decoupled from Netty Channels
  • compare performance / GC characteristics of:
    • Stream (including forcing / wrapping in Channel)
    • Array of nested 'word' Arrays wrapped in Channel
    • NIO ByteBuffer (including allocating more capacity)
• the interface follows the native API very closely -- a 'funny characters' API, possibly exposing 'Collection'-semantics, could be nice

Send questions, bugs or patches to kim.altintop@gmail.com

BSD-like, see LICENSE