Impossible to use java serialization mechanism ?

[legzo]

Hi,

We would like to cache some data returned by back-end services with redis and java serialization. The fact that the classes generated from the schema do not implement java.io.Serializable make this impossible. Is there a way to customize the generator to add the Serializable implementation ?

Thanks !

[dariuszkuc]

Hello 👋
It is not possible. Currently only Jackson and kotlinx-serialization formats are supported.

[samuelAndalon]

in Addition to what @dariuszkuc mentioned, you can also write as many indirection layers as you want to achieve the caching

data class User(val name: String, val lastName: String)

class UserService(
    userRedisRepository: UserRedisRepository
) {
    fun getUser(id: Int): CompletableFuture<User> {
        userRedisRepository.find(id) ?: // make your sevice call
    }
}

class SimpleQuery(
  val userService = UserService()
) : Query {
    suspend fun user(id: Int): User = userService.getUser(id).await()
}

[legzo]

Hi and thank you for your answer.

I'm not quite sure what you mean. In your example User can implement Serializable so that I can store it into redis and the equivalent of the User class, generated from the GraphQL schema would not. So I have to map the GraphQL object to my serializable class, right ?