CODEWITHSUNDEEP
mongodbscalacasbahsalat
Oleg
Oleg

Reputation: 3200

salat serialize Map[Enum,Boolean] type

I would like to serialize/deserialize to DBObject some map with enumeration as key using salat.

object MyEnum extends Enumeration {
  val VAL_ONE, VAL_TWO = Value
}
case class CanBeStored(a:Enumeration.Value)

case class CanNotBeStored(a:Map[Enumeration.Value,Boolean])
// Produces exception[[ClassCastException: com.mongodb.BasicDBObject cannot be cast to scala.collection.immutable.Map]]

As I understood it is not possible using current version. https://groups.google.com/forum/#!topic/scala-salat/s3Q548NM8yc

But may be there exists some round way to do it? The real problem is that I have a rather deep nested case class model which describes my Mongo datamodel and I can not just change serialization to custom implementation.

May be I can build some custom Transformer direct for Map[MyEnum.Value,Boolean] but how?

Upvotes: 1

Views: 232

Answers (1)

noahlz
noahlz

Reputation: 10311

Yes, you can implement custom transformers that could convert the String keys stored in mongo to your enum objects.

See: How to customize serialization behavior without annotations in Salat?

Upvotes: 1

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