Autowire Spring beans #21
Description
Hey!
It's more a question or feature request rather than an issue.
Is there an opportunity to use Spring Beans within Kovert converters?
Example code:
data class Entity(
var id: Long,
var nested: NestedEntity,
)
data class NestedEntity(
var id: Long,
)
data class DTO(
var id: Long,
var nested: NestedDTO?,
var nestedId: Long?,
)
data class NestedDTO(
var id: Long,
)
@Konverter
@KComponent
interface EntityConverter {
// here `dto.nested` is always `null`
// instead, we want to use `dto.nestedId` to get an entity via `nestedRepository.findById(dto.nestedId)`
fun convertToEntity(dto: DTO): Entity
// here we want to fill the target `nested` using another Konverter,
// so it would be `nestedConverter.convertToDTO(entity.nested)`
fun convertToDTO(entity: Entity): DTO
}So... I wonder, would it be the right approach to write something like this?
@Konverter
@KComponent
abstract class EntityConverter(
// these should be `@Autowired` since the whole `EntityConverter` would be a `@Component`
protected val nestedRepository: NestedRepository,
protected val nestedConverter: NestedConverter,
) {
@Konvert(
mappings = [
Mapping(target = "nested", expression = "nestedRepository.findById(it.nestedId)"),
]
)
fun convertToEntity(dto: DTO): Entity
@Konvert(
mappings = [
Mapping(target = "nested", expression = "nestedConverter.convertToDTO(it.nested)"),
]
)
fun convertToDTO(entity: Entity): DTO
}I was considering using the TypeConverter for that but I'm not sure if I would be able to achieve what I need with that.