{"id":7675,"date":"2024-12-25T22:15:11","date_gmt":"2024-12-25T19:15:11","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/"},"modified":"2024-12-25T22:15:11","modified_gmt":"2024-12-25T19:15:11","slug":"cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/","title":{"rendered":"CQRS (Command Query Responsibility Segregation): Java, Spring &#038; Axon \u00d6rne\u011fi"},"content":{"rendered":"<p><body><\/p>\n<p>CQRS (Command Query Responsibility Segregation): Java, Spring &#038; Axon \u00d6rne\u011fi<\/p>\n<p>Merhaba!  Bu yaz\u0131da,  karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini iyile\u015ftirmek i\u00e7in kullan\u0131lan bir mimari desen olan CQRS (Command Query Responsibility Segregation) hakk\u0131nda konu\u015faca\u011f\u0131z.  \u00d6zellikle Java, Spring Boot ve Axon framework&#8217;\u00fc kullanarak bir CQRS uygulamas\u0131 nas\u0131l geli\u015ftirilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z.  Anlayaca\u011f\u0131n\u0131z \u00fczere, CQRS, komutlar\u0131 (verileri de\u011fi\u015ftiren i\u015flemler) ve sorgular\u0131 (verileri okuyan i\u015flemler) ayr\u0131 sorumluluklar olarak ele alarak, uygulaman\u0131z\u0131n performans\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini art\u0131rmaya yard\u0131mc\u0131 olur.<\/p>\n<h2>CQRS&#8217;nin Temelleri<\/h2>\n<p>CQRS&#8217;nin temel fikri, veri yazma ve okuma i\u015flemlerini farkl\u0131 \u015fekilde ele almakt\u0131r.  Komutlar, verileri de\u011fi\u015ftirir ve genellikle idempotent (ayn\u0131 komut birden fazla \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda ayn\u0131 sonucu veren) olmalar\u0131 gerekir.  Sorgular ise verileri okur ve hi\u00e7bir yan etkiye sahip de\u011fildir.  Bu ayr\u0131m, uygulaman\u0131n performans\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini art\u0131rman\u0131n yan\u0131 s\u0131ra, daha temiz ve daha anla\u015f\u0131l\u0131r bir kod taban\u0131na da yol a\u00e7ar.  Ba\u015fka bir deyi\u015fle,  karma\u015f\u0131kl\u0131k seviyesini azalt\u0131r.  \u00d6rne\u011fin, b\u00fcy\u00fck miktarda veri okuyan bir uygulamada, okuma i\u015flemleri i\u00e7in optimize edilmi\u015f bir veri taban\u0131 kullan\u0131labilirken, yazma i\u015flemleri i\u00e7in farkl\u0131 bir yakla\u015f\u0131m benimsenebilir. <\/p>\n<h2>Axon Framework&#8217;\u00fc Kullanarak CQRS Uygulamas\u0131 Geli\u015ftirme<\/h2>\n<p>Axon Framework, Java tabanl\u0131 uygulamalar i\u00e7in CQRS ve Event Sourcing (olay kaynakl\u0131 mimari)  uygulamalar\u0131n\u0131 kolayla\u015ft\u0131ran g\u00fc\u00e7l\u00fc bir framework&#8217;t\u00fcr.  Axon, komutlar\u0131n i\u015flenmesi, olaylar\u0131n y\u00f6netimi ve sorgular\u0131n i\u015flenmesi i\u00e7in gerekli altyap\u0131y\u0131 sa\u011flar. Spring Boot ile entegre edildi\u011finde, geli\u015ftirme s\u00fcrecini daha da h\u0131zland\u0131r\u0131r.  Bu yaz\u0131da, Axon&#8217;un temel bile\u015fenlerini kullanarak basit bir CQRS uygulamas\u0131 geli\u015ftirece\u011fiz. <\/p>\n<h3>\u00d6rnek Uygulama: Bir \u00d6\u011frenci Y\u00f6netim Sistemi<\/h3>\n<p>\u00d6rnek uygulama olarak basit bir \u00f6\u011frenci y\u00f6netim sistemi kullanaca\u011f\u0131z.  Bu sistem, \u00f6\u011frenci ekleme, \u00f6\u011frenci bilgilerini g\u00fcncelleme ve \u00f6\u011frenci bilgilerini sorgulama i\u015flemlerini destekleyecektir.  Komutlar, \u00f6\u011frenci ekleme ve g\u00fcncelleme i\u015flemlerini ger\u00e7ekle\u015ftirecektir.  Sorgular ise \u00f6\u011frenci bilgilerini sorgulama i\u015flemlerini ger\u00e7ekle\u015ftirecektir.<\/p>\n<h3>Kod \u00d6rnekleri<\/h3>\n<pre><code>\n\/\/ \u00d6\u011frenci Komutu\n@CommandHandler\npublic void handle(CreateStudentCommand command) {\n    \/\/ ... \u00f6\u011frenci olu\u015fturma i\u015flemleri ...\n}\n\n\/\/ \u00d6\u011frenci Sorgusu\n@QueryHandler\npublic Student findStudentById(FindStudentQuery query) {\n    \/\/ ... \u00f6\u011frenci bulma i\u015flemleri ...\n}\n<\/code><\/pre>\n<p>Yukar\u0131daki kod \u00f6rnekleri, Axon framework&#8217;\u00fc kullanarak bir komut ve bir sorgu i\u015fleyicisinin nas\u0131l olu\u015fturulaca\u011f\u0131n\u0131 g\u00f6stermektedir.  <code>@CommandHandler<\/code> ve <code>@QueryHandler<\/code> anotasyonlar\u0131, Axon&#8217;a bu metodlar\u0131n komut ve sorgu i\u015fleyicileri oldu\u011funu bildirir.<\/p>\n<h2>Spring Boot Entegrasyonu<\/h2>\n<p>Spring Boot, Axon ile kolayca entegre edilebilir ve uygulaman\u0131z\u0131n h\u0131zl\u0131 bir \u015fekilde geli\u015ftirilmesini sa\u011flar.  Spring Boot&#8217;un otomatik konfig\u00fcrasyon \u00f6zellikleri, Axon&#8217;un konfig\u00fcrasyonunu olduk\u00e7a kolayla\u015ft\u0131r\u0131r.  Bu sayede, karma\u015f\u0131k konfig\u00fcrasyon dosyalar\u0131ndan kurtuluruz ve odak noktam\u0131z\u0131 uygulama mant\u0131\u011f\u0131na \u00e7evirebiliriz. <\/p>\n<h2>Sonu\u00e7<\/h2>\n<p>CQRS, \u00f6zellikle b\u00fcy\u00fck ve karma\u015f\u0131k uygulamalar i\u00e7in \u00f6l\u00e7eklenebilirlik ve performans a\u00e7\u0131s\u0131ndan b\u00fcy\u00fck avantajlar sa\u011flar.  Axon Framework ve Spring Boot ile birlikte kullan\u0131ld\u0131\u011f\u0131nda ise, CQRS uygulamalar\u0131n\u0131n geli\u015ftirilmesi olduk\u00e7a kolayla\u015f\u0131r.  Bu yaz\u0131da, CQRS mimarisinin temellerini ve Axon ile nas\u0131l uygulanaca\u011f\u0131n\u0131 anlatt\u0131k.  Daha detayl\u0131 bilgi i\u00e7in, <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> adresindeki di\u011fer yaz\u0131lar\u0131m\u0131 inceleyebilirsiniz.  Ayr\u0131ca Axon Framework&#8217;\u00fcn resmi dok\u00fcmantasyonuna g\u00f6z atman\u0131z faydal\u0131 olacakt\u0131r. <a href=\"https:\/\/axonframework.org\/\">Axon Framework Dok\u00fcmantasyonu<\/a><\/p>\n<p>Umar\u0131m bu yaz\u0131 size CQRS mimarisi ve uygulamas\u0131 hakk\u0131nda faydal\u0131 bilgiler sunmu\u015ftur.  Herhangi bir sorunuz veya \u00f6neriniz varsa, l\u00fctfen yorumlarda belirtin.<\/p>\n<p>#Etiketler: CQRS, Command Query Responsibility Segregation, Java, Spring, Spring Boot, Axon, Mimari, Yaz\u0131l\u0131m Geli\u015ftirme, \u00d6rnek Proje, \u00d6l\u00e7eklenebilirlik, Performans<br \/>\n<\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"CQRS (Command Query Responsibility Segregation): Java, Spring &#038; Axon \u00d6rne\u011fi Merhaba! Bu yaz\u0131da, karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-7675","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CQRS (Command Query Responsibility Segregation): Java, Spring &amp; Axon \u00d6rne\u011fi<\/title>\n<meta name=\"description\" content=\"Merhaba! Bu yaz\u0131da, karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini iyile\u015ftirmek i\u00e7in kullan\u0131lan bir mimari desen olan CQRS (Command Query Responsibility Segregation) hakk\u0131nda konu\u015faca\u011f\u0131z. \u00d6zellikle Java, Spring Boot ve Axon framework&#039;\u00fc kullanarak bir CQRS uygulamas\u0131 nas\u0131l geli\u015ftirilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Anlayaca\u011f\u0131n\u0131z \u00fczere, CQRS, komutlar\u0131 (verileri de\u011fi\u015ftiren i\u015flemler) ve sorgular\u0131 (verileri okuyan i\u015flemler) ayr\u0131 sorumluluklar olarak ele alarak, uygulaman\u0131z\u0131n performans\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini art\u0131rmaya yard\u0131mc\u0131 olur.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CQRS (Command Query Responsibility Segregation): Java, Spring &amp; Axon \u00d6rne\u011fi\" \/>\n<meta property=\"og:description\" content=\"Merhaba! Bu yaz\u0131da, karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini iyile\u015ftirmek i\u00e7in kullan\u0131lan bir mimari desen olan CQRS (Command Query Responsibility Segregation) hakk\u0131nda konu\u015faca\u011f\u0131z. \u00d6zellikle Java, Spring Boot ve Axon framework&#039;\u00fc kullanarak bir CQRS uygulamas\u0131 nas\u0131l geli\u015ftirilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Anlayaca\u011f\u0131n\u0131z \u00fczere, CQRS, komutlar\u0131 (verileri de\u011fi\u015ftiren i\u015flemler) ve sorgular\u0131 (verileri okuyan i\u015flemler) ayr\u0131 sorumluluklar olarak ele alarak, uygulaman\u0131z\u0131n performans\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini art\u0131rmaya yard\u0131mc\u0131 olur.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2024-12-25T19:15:11+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"CQRS (Command Query Responsibility Segregation): Java, Spring &#038; Axon \u00d6rne\u011fi\",\"datePublished\":\"2024-12-25T19:15:11+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/\"},\"wordCount\":614,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/#respond\"]}],\"copyrightYear\":\"2024\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/cqrs-command-query-responsibility-segregation-java-spring-axon-ornegi\/\",\"name\":\"CQRS (Command Query Responsibility Segregation): Java, Spring & Axon \u00d6rne\u011fi\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2024-12-25T19:15:11+00:00\",\"description\":\"Merhaba! Bu yaz\u0131da, karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini iyile\u015ftirmek i\u00e7in kullan\u0131lan bir mimari desen olan CQRS (Command Query Responsibility Segregation) hakk\u0131nda konu\u015faca\u011f\u0131z. \u00d6zellikle Java, Spring Boot ve Axon framework'\u00fc kullanarak bir CQRS uygulamas\u0131 nas\u0131l geli\u015ftirilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. 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Bu yaz\u0131da, karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini iyile\u015ftirmek i\u00e7in kullan\u0131lan bir mimari desen olan CQRS (Command Query Responsibility Segregation) hakk\u0131nda konu\u015faca\u011f\u0131z. \u00d6zellikle Java, Spring Boot ve Axon framework'\u00fc kullanarak bir CQRS uygulamas\u0131 nas\u0131l geli\u015ftirilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. 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Bu yaz\u0131da, karma\u015f\u0131k uygulamalar\u0131n tasar\u0131m\u0131n\u0131 ve \u00f6l\u00e7eklenebilirli\u011fini iyile\u015ftirmek i\u00e7in kullan\u0131lan bir mimari desen olan CQRS (Command Query Responsibility Segregation) hakk\u0131nda konu\u015faca\u011f\u0131z. \u00d6zellikle Java, Spring Boot ve Axon framework'\u00fc kullanarak bir CQRS uygulamas\u0131 nas\u0131l geli\u015ftirilece\u011fini detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. 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