MongoDB的Scala驅動：ReactiveMongo

ReactiveMongo 是一個NOSQL MongoDB 的 Scala 驅動，提供完整的非堵塞和異步 I/O 操作。

運行一個簡單的查詢：

package foo

  import reactivemongo.api._
  import reactivemongo.bson._
  import reactivemongo.bson.handlers.DefaultBSONHandlers._
  import play.api.libs.iteratee.Iteratee

  object Samples {
    import scala.concurrent.ExecutionContext.Implicits.global

    def listDocs() = {
      // select only the documents which field 'firstName' equals 'Jack'
      val query = BSONDocument("firstName" -> BSONString("Jack"))

      // get a Cursor[DefaultBSONIterator]
      val cursor = collection.find(query)
      // let's enumerate this cursor and print a readable representation of each document in the response
      cursor.enumerate.apply(Iteratee.foreach { doc =>
        println("found document: " + DefaultBSONIterator.pretty(doc.bsonIterator))
      })

      // or, the same with getting a list
      val cursor2 = collection.find(query)
      val futurelist = cursor2.toList
      futurelist.onSuccess {
        case list =>
          val names = list.map(_.getAs[BSONString]("lastName").get.value)
          println("got names: " + names)
      }
    }
  }

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