I need to serialize ArrayList as data class variable with custom DateSerializer, with single date variable i use annotation:
@Serializable
data class SearchBundle(
@Serializable(with = DateSerializer::class) var startDate: Date? = null)
Somebody know how to do it for arrayList of dates?
Probably easier then your current approach is to just specify the DateSerializer on file level of your SearchBundle-class via UseSerializers-annotation, e.g.:
@file:UseSerializers(DateSerializer::class)
import kotlinx.serialization.*
import java.util.*
@Serializable
data class SearchBundle(
var startDate: List<Date>? = null)
That way you can keep your DateSerializer as is and the rest of your code just works, i.e. it will automatically use DateSerializer for all Date-types within that file.
@Serializable
class TestDates(
@Optional @Serializable(with = DatesArraySerializer::class) var dates: ArrayList<Date>? = null
)
object DatesArraySerializer : KSerializer<ArrayList<Date>> {
override val descriptor = ArrayClassDesc(DateSerializer.descriptor)
override fun serialize(encoder: Encoder, obj: ArrayList<Date>) {
encoder.encodeSerializableValue(ArrayListSerializer(DateSerializer), obj)
}
override fun deserialize(decoder: Decoder): ArrayList<Date> {
val dates = decoder.decodeSerializableValue(ArrayListSerializer(DateSerializer))
return dates.toList() as ArrayList<Date>
}
}