Backoff is a strategy for dealing with failures, conflicts, or resource competition.
The core logic is: when an operation fails or encounters a limitation, it will pause for a period of time before trying again, and the retry interval is usually adjusted dynamically to avoid increasing system pressure or conflicts.
let’s see how spring-framework implement it.
in Spring-Framework 7.0, Spring team redesigned a minimal core retry feature in spring-core. inspired by the Spring Retry project.
currently only with 3 classes & 4 interfaces.
let’s deep into it.
Referneces:
Introduce minimal retry functionality as a core framework feature
Introduce @Retryable AOP support (based on core.retry and Reactor retry functionality)
when I try to read the spring-integration code, I find it is essential to know spring-messaging first. some concepts are same like message channel, pollable / subscribable channel, asynchronious, integration, etc.
spring-messaging is a sub-module under spring-framework. it highly abstracts the components when two systems needs to communicate via messages.
The more design patterns we talk about, the less powerful a language is.
The more powerful a language is, the more we will use integrated features than design patterns.
list few design patterns which are really excited to use with the evolution of Java.
Reflection or runtime introspection is a powerful feature in Java. some cool features we use in Spring like copyProperties, core concepts are come from Jdk only.
Under JDK java.beans package, there are some key classes used for reflection.