[encloser]

JDBC is the low level connection standard. Everything I am aware of is built ontop of JDBC.

Many people use the JPA libraries like Hibernate and EclipseLink. Another popular ORM is (my|i)batis. JDBI also seems to have a decent following.

After years of using ORMs, I vastly prefer interfaces like HugSQL unless I'm building a dead simple CRUD app. (I'm never building simple CRUD apps.)

[BossingAround]

Are you building the DB layer in Clojure and call it from Java then, or are you writing your whole app in Clojure?