November 2024
Intermediate to advanced
414 pages
11h 13m
French
Content preview from Une approche fonctionnelle de Java
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Chapitre 13. Tâches asynchrones
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Les charges de travail modernes nécessitent une plus grande réflexion sur la façon d'utiliser efficacement les ressources système disponibles. Les tâches asynchrones sont un excellent outil pour améliorer la réactivité de ton application en évitant les goulets d'étranglement en matière de performances.
Java 8 a introduit le nouveau type générique, CompletableFuture<T>, qui a amélioré le type Future<T> précédemment disponible pour créer des tâches asynchrones en utilisant une approche déclarative et fonctionnelle.
Ce chapitre explique pourquoi et comment utiliser la programmation asynchrone et comment CompletableFuture<T> constitue une approche plus souple et plus fonctionnelle des tâches asynchrones que ce qui était inclus dans le JDK auparavant.
Synchrone ou asynchrone
Le concept de tâches synchrones et asynchrones ne se limite pas au développement de logiciels.
Par exemple, une réunion en personne ou une conférence téléphonique est une activité synchrone, du moins si tu y prêtes attention. Tu ne peux rien faire d'autre que participer et éventuellement prendre des notes. Toute autre tâche est bloquée jusqu'à ce que la réunion/conférence soit terminée. Si laréunion/conférence avait été un e-mail à la place - comme la plupart de mes réunions pourraient et devraient l'être - ta tâche actuelle n'est pas interrompue car ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.