Docs about how to use it?

[hansgru]

Are there any docs about how to use liverepl?

Than you.

[djpowell]

The only documentation is the README file which shows how to start liverepl.

Once started, you should be presented with a Clojure REPL prompt where you can enter and execute Clojure code. Any introductory Clojure tutorial or book should explain.

[olivergg]

One of the purposes of liverepl (I guess) is to connect to an existing java application to run custom code without recompiling and restarting it.

; import some custom java class
(import 'a.foo.bar.java.package.SomeJavaClass)

; do something
(def fooclass (new SomeJavaClass))
(.fooMethod fooclass)

; inspect the members of the java class using clojure reflect api
(use 'clojure.reflect 'clojure.pprint)
(pprint (reflect fooclass)) ;

See clojure java interop page

For example, in a Spring based java webapp, it can be used to load custom beans (via the spring context loader) and run arbitrary code at runtime on it. The same can be achieved using JMX, but you would have to annotate the methods to expose and recompile your webapp.