{"id":2029,"date":"2026-07-28T06:23:23","date_gmt":"2026-07-28T06:23:23","guid":{"rendered":"https:\/\/www.vpascode.com\/ja\/docs\/uncategorized\/scala-visualizer-guide\/"},"modified":"2026-07-28T06:23:23","modified_gmt":"2026-07-28T06:23:23","slug":"scala-visualizer-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/ja\/docs\/vpascode-docs\/scala-visualizer-guide\/","title":{"rendered":"Scala"},"content":{"rendered":"

Scala\u3067\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3001\u95a2\u6570\u578b\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u3001\u307e\u305f\u306f\u9ad8\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30c7\u30fc\u30bf\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u3092\u8a2d\u8a08\u3059\u308b\u969b\u3001\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\u578b\u3001\u30c8\u30ec\u30a4\u30c8\u306e\u30df\u30c3\u30af\u30b9\u30a4\u30f3\u3001\u30a2\u30af\u30bf\u30fc\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6271\u3046\u306e\u306f\u8907\u96d1\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Scala Visualizer<\/strong>\u306f\u3001Scala\u306e\u30af\u30e9\u30b9\u3001\u30b1\u30fc\u30b9\u30af\u30e9\u30b9\u3001\u30b7\u30fc\u30eb\u30c9\u30c8\u30ec\u30a4\u30c8\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3001\u30c8\u30ec\u30a4\u30c8\u306e\u968e\u5c64\u3092\u660e\u78ba\u3067\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u30af\u30e9\u30b9\u56f3\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u578b\u5b9a\u7fa9\u3001\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u306e\u968e\u5c64\u5951\u7d04\uff08\u30b7\u30fc\u30eb\u30c9\u30c8\u30ec\u30a4\u30c8<\/code>\uff09\u3001\u30df\u30c3\u30af\u30b9\u30a4\u30f3\uff08with<\/code>\uff09\u3001\u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u89e3\u6790\u3059\u308b\u3053\u3068\u3067\u3001Scala\u958b\u767a\u8005\u3084\u30c7\u30fc\u30bf\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u95a2\u6570\u578b\u304a\u3088\u3073\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u4e00\u76ee\u3067\u8996\u899a\u7684\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

Scala\u30d3\u30b8\u30e5\u30a2\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u306e\u4ed5\u7d44\u307f<\/h2>\n

VPasCode\u3067\u306f\u3001Scala\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u81ea\u52d5\u7684\u306bclass<\/code>, case class<\/code>, trait<\/code>, \u30b7\u30fc\u30eb\u30c9\u30c8\u30ec\u30a4\u30c8<\/code>\u3001\u304a\u3088\u3073object<\/code>\u5b9a\u7fa9\u3092\u69cb\u9020\u5316\u3055\u308c\u305fUML\u30b9\u30bf\u30a4\u30eb\u306e\u56f3\u30ab\u30fc\u30c9\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u30c8\u30ec\u30a4\u30c8\u3068\u30b1\u30fc\u30b9\u30af\u30e9\u30b9\u306f\u4e3b\u306a\u30c9\u30e1\u30a4\u30f3\u30ce\u30fc\u30c9\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30d1\u30e9\u30e1\u30fc\u30bf\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u578b\u4ed8\u304d\u306e\u5c5e\u6027\u3068\u3057\u3066\u30ea\u30b9\u30c8\u3055\u308c\u3001\u7d99\u627f\u307e\u305f\u306f\u30c8\u30ec\u30a4\u30c8\u5b9f\u88c5\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u3063\u3066\u8996\u899a\u7684\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u660e\u78ba\u306a\u69cb\u9020\u7684\u95a2\u4fc2\u7dda\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n

1. \u5fc5\u9808\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/h3>\n

\u6a19\u6e96\u7684\u306aScala\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u3092\u53ef\u8996\u5316\u3059\u308b\u306b\u306f\u3001\u9589\u3058\u305f\u578b\u968e\u5c64\u306b\u5bfe\u3057\u3066\u30b7\u30fc\u30eb\u30c9\u30c8\u30ec\u30a4\u30c8\u3092\u5b9a\u7fa9\u3057\u3001\u5177\u4f53\u7684\u306a\u30b1\u30fc\u30b9\u30af\u30e9\u30b9\u3068\u4f75\u7528\u3057\u307e\u3059\u3002\u30a2\u30af\u30bf\u30fc\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30d7\u30ed\u30c8\u30b3\u30eb\u3084\u30b3\u30de\u30f3\u30c9\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u57fa\u672c\u7684\u306aScala\u306e\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\u578b\uff08ADT\uff09\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n

\n
\nScala<\/span>
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Scala\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n
\n
\r\n
\r\n Scala<\/span>\r\n \r\n <\/path><\/path><\/svg>\r\n Edit Scala in VPasCode<\/span>\r\n <\/a>\r\n <\/div>\r\n
\r\n 
package com.example.actor\r\n\r\n\/\/ \u30d9\u30fc\u30b9\u30e1\u30c3\u30bb\u30fc\u30b8\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u5951\u7d04\r\nsealed trait ActorCommand\r\n\r\n\/\/ \u5177\u4f53\u7684\u306a\u30b3\u30de\u30f3\u30c9\u30e1\u30c3\u30bb\u30fc\u30b8\r\ncase class StartProcess(processId: String, timestamp: Long) extends ActorCommand\r\ncase class StopProcess(processId: String, reason: String) extends ActorCommand\r\ncase class QueryStatus(processId: String) extends ActorCommand\r\n\r\n\/\/ \u5fdc\u7b54\u306eADT\u968e\u5c64\r\nsealed trait ActorResponse\r\ncase class ProcessStarted(processId: String) extends ActorResponse\r\ncase class ProcessFailed(processId: String, error: String) extends ActorResponse\r\ncase class StatusResult(processId: String, isRunning: Boolean) extends ActorResponse\r\n\r\n\/\/ \u4e3b\u306a\u30ef\u30fc\u30ab\u30fc\u30a2\u30af\u30bf\u30fc\u306e\u72b6\u614b\u30b3\u30f3\u30c6\u30ca\r\nclass WorkerActor(val workerId: String) {\r\n  private var currentTask: Option[String] = None\r\n\r\n  def handleCommand(cmd: ActorCommand): ActorResponse = cmd match {\r\n    case StartProcess(id, _) =>\r\n      currentTask = Some(id)\r\n      ProcessStarted(id)\r\n    case StopProcess(id, reason) =>\r\n      currentTask = None\r\n      StatusResult(id, isRunning = false)\r\n    case QueryStatus(id) =>\r\n      StatusResult(id, currentTask.contains(id))\r\n  }\r\n}<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Scala\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
\u9ad8\u5ea6\u306a\u69cb\u9020\u6280\u6cd5<\/h2>\n
Scala\u306e\u30d3\u30b8\u30e5\u30a2\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u7d14\u7c8b\u306a\u95a2\u6570\u578b\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u3001\u4e0d\u5909\u306e\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u30ab\u30fc\u30c8\u96c6\u7d04\u3001\u5024\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u968e\u5c64\u3092\u660e\u78ba\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u306e\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
1. \u95a2\u6570\u578bEC\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb<\/h3>\n
\u652f\u6255\u3044\u30bf\u30a4\u30d7\u306b\u30b7\u30fc\u30eb\u30c9\u30c8\u30ec\u30a4\u30c8\u3092\u3001\u30ab\u30fc\u30c8\u30a2\u30a4\u30c6\u30e0\u306b\u4e0d\u5909\u306e\u30b1\u30fc\u30b9\u30af\u30e9\u30b9\u3001\u30c9\u30e1\u30a4\u30f3\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001VPasCode\u306f\u8907\u96d1\u306a\u30c9\u30e1\u30a4\u30f3\u30ed\u30b8\u30c3\u30af\u3092\u8aad\u307f\u3084\u3059\u3044\u8996\u899a\u7684\u30c4\u30ea\u30fc\u306b\u660e\u78ba\u306b\u5206\u89e3\u3057\u307e\u3059\uff1a<\/p>\n
\n
\nScala<\/span>
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Scala\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n
\n            
\r\n                                
\r\n                    Scala<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
package com.example.ecommerce\r\n\r\nsealed trait PaymentMethod\r\ncase object CreditCard extends PaymentMethod\r\ncase object PayPal extends PaymentMethod\r\ncase class CryptoWallet(address: String) extends PaymentMethod\r\n\r\ncase class CartItem(sku: String, price: BigDecimal, quantity: Int) {\r\n  def total: BigDecimal = price * quantity\r\n}\r\n\r\ncase class Customer(customerId: String, email: String)\r\n\r\ncase class ShoppingCart(\r\n  cartId: String,\r\n  customer: Customer,\r\n  items: List[CartItem],\r\n  paymentMethod: PaymentMethod\r\n) {\r\n  def grandTotal: BigDecimal = items.map(_.total).sum\r\n}<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Scala\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
\u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30c7\u30fc\u30bf\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u69cb\u9020\u5316<\/h2>\n
\u30b9\u30c8\u30ea\u30fc\u30e0\u30d7\u30ed\u30bb\u30c3\u30b5\u3001\u30b7\u30f3\u30af\u30c8\u30ec\u30a4\u30c8\u3001\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u30b9\u30c6\u30fc\u30b8\u5909\u63db\u30ce\u30fc\u30c9\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u5206\u6563\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u30b8\u30e7\u30d6\u5168\u4f53\u3067\u660e\u78ba\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u6027\u3092\u7dad\u6301\u3067\u304d\u308b\u3002<\/p>\n
1. \u30ea\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30c7\u30fc\u30bf\u30b9\u30c8\u30ea\u30fc\u30e0\u30d7\u30ed\u30bb\u30c3\u30b5<\/h3>\n
\u30b9\u30c8\u30ea\u30fc\u30e0\u30bd\u30fc\u30b9\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30de\u30fc\u30c8\u30ec\u30a4\u30c8\u3001\u5177\u4f53\u7684\u306a\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u30b9\u30c6\u30fc\u30b8\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3057\u3066\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u30c8\u30dd\u30ed\u30b8\u30fc\u3092\u660e\u78ba\u306b\u3059\u308b\uff1a<\/p>\n
\n
\nScala<\/span>
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Scala\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n
\n            
\r\n                                
\r\n                    Scala<\/span>\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                
\r\n                    
package com.example.stream\r\n\r\ntrait StreamSource[T] {\r\n  def readNext(): Option[T]\r\n}\r\n\r\ntrait StreamSink[T] {\r\n  def write(element: T): Boolean\r\n}\r\n\r\ncase class LogEvent(eventId: String, level: String, payload: String)\r\n\r\nclass KafkaLogSource(val topic: String) extends StreamSource[LogEvent] {\r\n  override def readNext(): Option[LogEvent] = {\r\n    Some(LogEvent(\"evt-101\", \"INFO\", \"\u30da\u30a4\u30ed\u30fc\u30c9\u53d7\u4fe1\"))\r\n  }\r\n}\r\n\r\nclass ElasticSink(val clusterUrl: String) extends StreamSink[LogEvent] {\r\n  override def write(element: LogEvent): Boolean = {\r\n    println(s\"\u30a4\u30d9\u30f3\u30c8${element.eventId}\u3092$clusterUrl\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9ing\")\r\n    true\r\n  }\r\n}\r\n\r\nclass LogPipeline(val source: StreamSource[LogEvent], val sink: StreamSink[LogEvent]) {\r\n  def processNext(): Unit = {\r\n    source.readNext().foreach(sink.write)\r\n  }\r\n}<\/code><\/pre>                <\/div>\r\n                
\r\n                    \r\n                        <\/path><\/path><\/svg>\r\n                        Edit Scala in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n
\n
\n<\/path><\/path><\/svg>
\nVPasCode\u3067Scala\u3092\u7de8\u96c6<\/span>
\n<\/a>\n<\/div>\n<\/div>\n
\"\"<\/p>\n
\u00a0<\/p>\n
\u6226\u7565\u7684\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n
    \n
  • \u4ee5\u4e0b\u3092\u6d3b\u7528\u3059\u308b\uff1asealed trait<\/code>\u9589\u3058\u305f\u968e\u5c64\u69cb\u9020\u306b\uff1a<\/strong>\u30c9\u30e1\u30a4\u30f3\u306e\u72b6\u614b\u3068\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30af\u30e9\u30b9\u3092\u3001sealed trait<\/code>\u56f3\u751f\u6210\u30c4\u30fc\u30eb\u304c\u4ee3\u6570\u7684\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u8ad6\u7406\u7684\u306b\u30b0\u30eb\u30fc\u30d7\u5316\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/li>\n
  • \u4ee5\u4e0b\u3092\u4f7f\u7528\u3059\u308b\uff1acase class<\/code>\u30c7\u30fc\u30bf\u30b3\u30f3\u30c6\u30ca\u3068\u3057\u3066\uff1a<\/strong>\u4e0d\u5909\u30c7\u30fc\u30bf\u69cb\u9020\u3092case class<\/code>\u30d1\u30e9\u30e1\u30fc\u30bf\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u81ea\u52d5\u7684\u306b\u516c\u958b\u3057\u3001\u8996\u899a\u7684\u306a\u30ce\u30fc\u30c9\u30ab\u30fc\u30c9\u4e0a\u3067\u8aad\u307f\u3084\u3059\u304f\u4fdd\u3064\u3002<\/li>\n
  • \u30c8\u30ec\u30a4\u30c8\u3092\u4f7f\u3063\u3066\u95a2\u6570\u7684\u5951\u7d04\u3092\u5206\u96e2\u3059\u308b\uff1a<\/strong>\u62bd\u8c61\u7684\u306a\u632f\u308b\u821e\u3044\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092trait<\/code>\u3067\u5b9a\u7fa9\u3057\u3001extends<\/code> \u307e\u305f\u306f\u30df\u30c3\u30af\u30b9\u30a4\u30f3\u69cb\u6587\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    Scala\u3067\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3001\u95a2\u6570\u578b\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u3001\u307e\u305f\u306f\u9ad8\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u30ea\u30a2\u30af\u30c6\u30a3…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":10,"template":"","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"ld_collection":[14],"class_list":["post-2029","ld_docs","type-ld_docs","status-publish","hentry","ld_collection-vpascode-docs"],"yoast_head":"\nScala to Diagram Guide | Text to Diagram with VPasCode<\/title>\n<meta name=\"description\" content=\"Easily turn Scala code definitions into visual layout charts. 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