Get reference to an object via it's class name

gistfile1.scala

// Say you have some case objects like this:

package code
sealed trait Concept
case object Address extends Concept
case object City extends Concept

// From these you can create an html select list:

<select name="concept">
  <option value="code.Address$">Address</option>
  <option value="code.City$">City</option>
</select>

// to get a reference to the case object on your backend server
import code.Concept
import net.liftweb.common.Box
import net.liftweb.http.S
import net.liftweb.util.Helpers.tryo

val concept: Box[Concept] = S.param("concept")
  .flatMap(p => tryo(Class.forName(p).getField("MODULE$").get(null).asInstanceOf[Concept]))