Java Best Practices

Caching is like coffee for your Java application—it keeps things running faster and smoother. And when it comes to caching libraries, Caffeine is the double espresso of the Java world. Built to replace Guava Cache, Caffeine is a high-performance, flexible caching solution with a Java-friendly API and thoughtful design choices. In this blog post, we’ll dive into the nuts and bolts of Caffeine and show you how to configure it with practical examples. ...

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! ...