json4s generic

gistfile1.txt

package com.len.Boot

import org.json4s._
import org.json4s.native.Serialization
import org.json4s.native.Serialization.{read, write}

object Boot {
   implicit val formats = DefaultFormats + FieldSerializer[item[String]]()
   def main(args: Array[String]): Unit ={

      val tmp = new item[String]("g").asInstanceOf[myGeneric[String]]
      println(write(tmp))
   }

   class item[T](value: T) extends myGeneric[T]{
      var genericField: T = value
      var otherField = "other"
      var customField = "custom"
   }

   trait myGeneric[T]{
      var genericField: T
      var otherField: String
   }
}