Example of @TypeConverters in Room Persistence Database

FieldConverters.kt

import androidx.room.TypeConverters
import java.util.*

class FieldConverters {

    @TypeConverters
    fun fromTimestamp(value: Long?): Date? {
        return value?.let { Date(it) }
    }

    @TypeConverters
    fun toTimestamp(date: Date?): Long? {
        return date?.time
    }

}