6 posts tagged with "Java"

How to Create Entity Classes for Relational Tables​

When working with Java Persistence API (JPA), defining entity classes is a critical step to map relational database tables to Java objects. In this post, we’ll explore how to create entity classes for a relational schema, focusing on best practices and solving common challenges such as composite keys.

Introduction​

Spring Boot starters are predefined templates or dependencies that simplify the process of setting up a Spring Boot application. They eliminate the need to manually define numerous dependencies, ensuring compatibility and reducing configuration effort.

Here’s a list of commonly used Spring Boot starters and their purposes:

Spring Framework​

The Spring Framework is a comprehensive and widely-used framework in the Java ecosystem for building enterprise-level applications. Its core feature is dependency injection (DI), which helps with the loose coupling of components, making applications easier to manage and test. Spring provides many modules for various tasks, like web development, data access, messaging, and more, making it highly modular and suitable for a variety of projects.

Introduction​

In modern distributed systems, observability is crucial for monitoring application performance and troubleshooting issues. OpenTelemetry (OTel) is a powerful tool for collecting telemetry data such as traces, metrics, and logs. In this guide, we'll walk through how to instrument a Spring Boot application with OpenTelemetry without using the Java agent, and how to export the telemetry data to Jaeger using Docker.

Introduction​

A sequence of elements in Java that supports several methods that can be pipelined to achieve a desired outcome is called a stream. Originally included in Java 8 as a component of the java.util.stream package, streams are a part of the Java Collections Framework. They are made to manipulate data declaratively, much like SQL does with information kept in tables.

Overview​

This blog post introduces Jib, a powerful tool for building optimized Docker images for Java applications. Jib stands out by eliminating the need for a Docker daemon and expertise in Docker best practices, making it a convenient option for developers. Integrated as a plugin in Gradle or Maven projects, Jib simplifies the process of containerizing Java applications.