Java Annotations

In modern backend development, asynchronous processing plays a crucial role in improving performance and responsiveness. Spring Boot provides a powerful mechanism for executing tasks asynchronously using the @Async annotation. This blog post will explore how to use @Async, its configuration, best practices, and some real-world use cases. What is @Async in Spring Boot? The @Async annotation in Spring allows methods to run asynchronously in a separate thread, enabling non-blocking execution. This is particularly useful when handling long-running tasks, such as sending emails, making API calls, or processing large amounts of data without blocking the main thread. ...

Imagine this: Your Java application is set up to run scheduled tasks at specific intervals, but there’s a catch—during maintenance mode, you want to temporarily disable these jobs. Modifying each job individually to check for a maintenance flag can be tedious, repetitive, and error-prone. This is where Aspect-Oriented Programming (AOP) comes to the rescue. In this post, we’ll dive into Aspect-Oriented Programming in Java and explore how you can use it to conditionally run cron jobs based on a property, such as a “maintenance mode” flag. Let’s start by understanding AOP and then dissect a practical example. ...

If you’ve been coding in Java for a while, you’ve likely faced a situation where you needed to perform cross-cutting tasks—like logging, caching, or security checks—across multiple parts of your application. Wouldn’t it be nice to handle these tasks elegantly, without cluttering your core business logic? Enter Aspect-Oriented Programming (AOP). In this post, we’ll dive into the basics of AOP in Java and show you how to use it with a practical example: automatically invalidating a cache after saving a user. Let’s go! ...