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java-design-patterns/async-method-invocation
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Anurag Agarwal 6d1c0b1563 Resolves checkstyle errors for ambassador, async-method-invocation, balking, bridge, builder (#1058) 
* Decreases checkstyle errors for ambassador pattern

* Reduces checkstyle errors in async-method-invocation

* Reduces checkstyle errors in balking

* Reduces checkstyle errors in bridge

* Reduces checkstyle errors in builder
2019-11-09 21:03:22 +02:00
..
etc
#190 Remove urm plugin
2017-11-28 20:55:52 +02:00
src
Resolves checkstyle errors for ambassador, async-method-invocation, balking, bridge, builder (#1058)
2019-11-09 21:03:22 +02:00
pom.xml
Update license headers
2019-10-12 20:05:54 +03:00
README.md
#190 Remove pumlids from readmes
2017-11-28 21:28:53 +02:00

README.md

layout, title, folder, permalink, categories, tags
layout title folder permalink categories tags
pattern Async Method Invocation async-method-invocation /patterns/async-method-invocation/ Concurrency
Java
Difficulty-Intermediate
Functional
Reactive

Intent

Asynchronous method invocation is pattern where the calling thread is not blocked while waiting results of tasks. The pattern provides parallel processing of multiple independent tasks and retrieving the results via callbacks or waiting until everything is done.

alt text

Applicability

Use async method invocation pattern when

  • you have multiple independent tasks that can run in parallel
  • you need to improve the performance of a group of sequential tasks
  • you have limited amount of processing capacity or long running tasks and the caller should not wait the tasks to be ready

Real world examples