JRuby support

[rurounijones]

Issue #2 kind of got side-tracked with rubinius and jruby so I am opening new issue instead.

The current jruby branch uses jdbc-postgres and activerecord-jdbcpostgresql-adapter but from what I can see it looks like it would be easier to use https://github.com/headius/jruby-pg

Which is aimed to be a "Drop-in" replacement for CRuby's pg driver.

Using that gem might heavily reduce the amount of code modifications required to support jruby. (It is currently marked as an rc level gem)

[BukhariH]

The problem is that this library will be used in a production environment however jruby-pg is not yet ready to be at the stage of production ready because as it isn't passing all the the PG Gem tests.

However, jdbc-postgres is the official driver from postgres and activerecord-jdbc-adapter is production ready as it's passing all of the PG gems tests and it is made and maintained by the team that work on jruby!

However, if a user adds jruby-pg on their gemfile then que should work (though it might be buggy).

[rurounijones]

Yep, just offering it as an option since there seemed to be issues getting the other gems working.

On a sidenote: The jruby-pg gem is being written in part by Charles Nutter who is on of the Big Kahunas of JRuby.

[BukhariH]

Oh nice! I didn't know that!

jruby-pg is definitely a step in the right direction thats for sure!

[chanks]

Thanks for pointing me to this gem, I'm looking into it right now. Most of the specs are passing with it, and I think it'll work well.

[chanks]

Well, most of the specs pass with the gem, but it seems to be currently incompatible with ActiveRecord (since it explicitly checks for the presence of the pg gem), and I'm not sure how to get around that - I guess it'll become a non-issue when jruby-pg becomes the java version of the actual pg gem. But it works for Sequel and the other adapters, and there don't seem to be any compatibility problems aside from the gem thing, so I'm ready to call JRuby officially supported. Thanks again!

[rurounijones]

Congrats! and thanks for supporting the JRuby users 👍