how do i connect and run queries from clojure?

[thedavidmeister]

No description provided.

[rnewman]

Mentat is an embedded Rust database; think SQLite, not PostgreSQL. You could wrap it in a server API, but we have not done so; it’s not our focus.

Can you clarify what you’re trying to do?

[thedavidmeister]

i was hoping to use it in a clojure program to run datomic style queries with sqlite

https://github.com/thedavidmeister/byteball-clj

byteballcore uses sqlite for storing a DAG, but i thought that something datomic style might be a good alternative too

for all the reasons outlined in the readme, basically :)

I had assumed that i could use mentat and send through queries somehow but i guess not :/

[rnewman]

If you can call C libraries, you can use Mentat — and you already call into SQLite. We have a proto app that calls into a Rust layer on top of Mentat from Android Java via JNA. There might be a little FFI munging to backport from that, but it shouldn’t be difficult.

What’s your timeline?

[thedavidmeister]

i'm just noodling atm, mentat looks like an exciting project:

• datalog queries
• no need for expensive datomic setups
• opensource/mozilla
• persistence with sqlite

i found it because someone mentioned it in the datascript slack channel

thanks for the reference example

unfortunately, my rust experience is limited to reading the manual once about a year or so ago >.<

[rnewman]

Sounds like a reasonable fit, then. An “Android” library should be pretty close to usable from Clojure. Once that exists, you’ll have something more concrete to evaluate.

[thedavidmeister]

sweet, in the meantime i'll play around with datascript in memory and assume there'll be persistence at some point

what is the overall state of the project development btw? i read a blog post that said it might be getting canned by mozilla, which would be a real shame if true...

[rnewman]

It's under active development to support sync and storage exploration. If it continues to be promising, and/or we shift towards product delivery, it'll continue to be developed. If we find major obstacles, then we'll can it or change direction.

[thedavidmeister]

are you expecting major obstacles at this point?

[rnewman]

Generalized syncing is hard. Building and documenting a storage system is tricky. Coping with Firefox scale is a challenge. Pivots are possible.

[thedavidmeister]

mmm ok, well i hope it works out, this has the potential to be pretty awesome :D

[rnewman]

We do too!

[zcaudate]

I'm wondering about how this is progressing. I noticed that there is now an android SDK. Is there anyway to start using it from maven?

[rnewman]

@zcaudate you might be interested in #794 and #786.