simple example of using $addToSet + $each operator with Java driver from scala

MongoAddToSet.scala

package com.stackmob.mongoaddtoset

import com.mongodb._
import org.bson.types.ObjectId

object MongoAddToSet extends App {
  val conn = new Mongo("localhost", 27017)
  val db = conn.getDB("addtoset")

  val items = db.getCollection("items")

  val addToSet = new BasicDBObject("$addToSet", new BasicDBObject("value", new BasicDBObject("$each", Array(1,2,3,4, 5, 6))))

  items.update(new BasicDBObject("_id", new ObjectId("501c2824484ff81318b5643a")), addToSet)
}