Home  >  Blog  >  Java

Category: Java

Event Driven Microservices: Outbox Pattern with Spring Boot

Published date 6 August 2023 Categories Blog / Java / Spring Boot

In microservices architectures, maintaining data consistency and ensuring reliable communication between services is critical. The Outbox Pattern is an event-driven approach that addresses these challenges by introducing an additional layer for handling events. In this tutorial, we will delve into the Outbox Pattern, explaining its principles and benefits, and guide you through implementing it with a practical Spring Boot example...

READ MORE Event Driven Microservices: Outbox Pattern with Spring Boot

Database-Based Authentication in Spring Security: A Step-by-Step Tutorial

Published date 6 August 2023 Categories Blog / Java / Spring Boot

In this tutorial, we will explore how to implement database-based authentication using Spring Security. We’ll create a simple web application with user registration, login, and access control. Table of Content: Setting Up the Project Let’s start by setting up a new Spring Boot project. You can do this manually or use Spring Boot Initializr to generate the project structure. Ensure...

READ MORE Database-Based Authentication in Spring Security: A Step-by-Step Tutorial

How to Audit JPA Entities Using Envers in a Spring Boot Application

Published date 6 August 2023 Categories Blog / Java / Spring Boot

In this tutorial, we will walk through the process of setting up auditing for JPA entities using Envers in a Spring Boot application. We will create an example Spring Boot project, define JPA entities, configure Hibernate Envers, and demonstrate how to retrieve audit information from the database. In modern applications, tracking data changes is crucial, especially in critical systems handling...

READ MORE How to Audit JPA Entities Using Envers in a Spring Boot Application

Joining Unrelated Entities with JPA and Hibernate in Spring Boot

Published date 6 August 2023 Categories Blog / Java / Spring Boot

In this tutorial, we will explore how to join unrelated entities using JPA (Java Persistence API) and Hibernate in a Spring Boot application. The process of joining unrelated entities allows us to retrieve data from different tables that have no direct association using a single database query. By the end of this tutorial, you will have a better understanding of...

READ MORE Joining Unrelated Entities with JPA and Hibernate in Spring Boot

Implementing the Strategy Pattern using Lambda Expressions in Java 8

Published date 5 August 2023 Categories Blog / Java

In this tutorial, we will explore how to implement the Strategy Pattern in Java 8 using lambda expressions, which will significantly simplify our code and make it more concise. Table of Content: Understanding Strategy Pattern The Strategy Pattern is a behavioral design pattern that focuses on encapsulating a family of algorithms, making them interchangeable, and allowing clients to select the...

READ MORE Implementing the Strategy Pattern using Lambda Expressions in Java 8

Understanding the Difference Between Float and Double in Java

Published date 4 August 2023 Categories Blog / Java

In Java, when dealing with numeric values that require decimal points, developers have two primary data types at their disposal: float and double. While both are used to represent floating-point numbers, they differ in precision and size. Understanding the distinctions between these data types is crucial to writing efficient and accurate Java programs. In this blog post, we’ll dive into...

READ MORE Understanding the Difference Between Float and Double in Java

Meltdown! How to Understand Complexities in Java Programming: First Look on the Navigating Challenges with Confidence

Published date 3 August 2023 Categories Blog / Java / Microservice / Spring Boot

Table of Contents Introduction Java, one of the most popular programming languages, is known for its versatility and wide range of applications. However, as Java programs grow in size and complexity, developers often encounter various challenges that can hinder productivity and performance. In this article, we will explore some common complexities in Java programming and discuss strategies to overcome them....

READ MORE Meltdown! How to Understand Complexities in Java Programming: First Look on the Navigating Challenges with Confidence

SOLID thing (Principles): A Guide to Empower Writing a Better Maintainable and High Extensible Code

Published date 3 August 2023 Categories Blog / Java / Microservice / Spring Boot

Introduction: In the world of software development, writing code that is easy to understand, maintain, and extend is crucial. The SOLID principles offer a set of guidelines to achieve these goals. SOLID is an acronym for five principles: In this article, we will explore each of these principles and provide Java code examples to illustrate their application. 1. Single Responsibility...

READ MORE SOLID thing (Principles): A Guide to Empower Writing a Better Maintainable and High Extensible Code

The 15-Factor Way of App: Overcome the First Challenge to Building Cloud-Native Applications

Published date 3 August 2023 Categories Blog / Java / Microservice / Spring Boot

Table of Contents Introduction The 12 Factor App and the 15 Factors are both sets of principles for building cloud-native applications. The 12 Factor App was published in 2011, and the 15 Factor was published in 2017 and they are designed to make applications easier to deploy, scale, and maintain in the cloud. What are the 12 and 15 Factors?...

READ MORE The 15-Factor Way of App: Overcome the First Challenge to Building Cloud-Native Applications

Understanding UUID in Java: A Universally Unique Identifier

Published date 12 July 2023 Categories Blog / Java

In Java, a universally unique identifier (UUID) is a commonly used data type for generating and representing unique identifiers. UUIDs are particularly useful in distributed systems, as they provide a reliable means of identifying resources without relying on centralized coordination or database systems. In this article, we will delve into the concept of UUIDs in Java, their structure, generation methods,...

READ MORE Understanding UUID in Java: A Universally Unique Identifier