Junichi Kato j5ik2o

curl -v -X GET https://oss.sonatype.org/content/repositories/releases/com/github/j5ik2o/reactive-redis-core_2.12/1.0.20/reactive-redis-core_2.12-1.0.20.pom                        INT(-2) ↵  3243  22:31:44
Note: Unnecessary use of -X or --request, GET is already inferred.
*   Trying 23.22.160.79...
* TCP_NODELAY set
* Connected to oss.sonatype.org (23.22.160.79) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:

型パラメータが高階型の場合のDIについて

トレイト: UserAccountRepository[M[_]] https://github.com/j5ik2o/scala-ddd-base/blob/master/example/src/main/scala/com/github/j5ik2o/dddbase/example/repository/UserAccountRepository.scala

実装: UserAccountRepositoryBySkinny https://github.com/j5ik2o/scala-ddd-base/blob/master/example/src/main/scala/com/github/j5ik2o/dddbase/example/repository/skinny/UserAccountRepositoryBySkinny.scala

があったとして、以下のようなDIをさせたいのですが、

	object PersistentWalletAggregate {

	def behaviorProxy(
	id: WalletId,
	chargesLimit: Int = Int.MaxValue
	): Behavior[CommandRequest] =
	Behaviors
	.supervise(Behaviors.setup[CommandRequest] { ctx =>
	val childRef: ActorRef[CommandRequest] =
	ctx.spawn(WalletAggregate.behavior(id, chargesLimit), WalletAggregate.name(id))

	object TestMain extends App {
	import akka.stream.scaladsl._
	import akka.actor._
	import akka.stream.ActorMaterializer
	import scala.concurrent._
	import scala.concurrent.duration._

	implicit val system = ActorSystem()
	implicit val ec = system.dispatcher
	implicit val mat = ActorMaterializer()

	package btree

	package btree

	type Node interface {
	Size() int
	Sum() int64
	Min() int64
	Max() int64
	Find(value int64) *int64

	trait BTree {
	fn size(&self) -> i32;
	fn sum(&self) -> i64;
	fn min(&self) -> i64;
	fn max(&self) -> i64;
	fn find(&self, value: i64) -> Option<i64>;
	}

	enum Node {
	Leaf {

	// 絵の具を表すオブジェクト(副作用が伴う可変オブジェクト)
	public class Paint {
	private int volume;
	private PigmentColor pigmentColor;
	// getter, setter 省略

	public Paint(PigmentColor pigmentColor, int volume) {
	this.volume = volume;
	this.pigmentColor = pigmentColor;
	}

	case class Money(amount: BigDecimal,
	currency: Currency) {

	def plus(other: Money): Money = {
	require(currency == other.currency)
	new Money(amount = amount.add(other.amount), currency)
	}

	}

	case class UserAcount(id: Long, name: String, groupId: Long) {

	// ...

	def groupName(groupRepository: GroupRepository): Task[GroupName] = groupRepository.resolveBy(groupId).map(_.name)

	}

	package domain

	trait Money {

	def plus(other: Money): Money

	def minus(other: Money): Money

	// ...
	}