Java Resources

Introduction to Spring Data JPA, Part 3: Unidirectional One to Many Relations

In this tutorial, we take a look at unidirectional one-to-many realations and how to enable the removal of user records without removing role records.

April 14, 2020

by Vinu Sagar

· 20,594 Views · 6 Likes

Working With Data in Microservices

In this post, I will focus on Ballerina’s support for processing and sharing data over the network.

April 14, 2020

by Lakmal Warusawithana

· 11,624 Views · 5 Likes

Unit-API: What, How, and Why

Learn more about the complexity of using units and the best practices around them, as well as how to build a cloud-portable application.

April 13, 2020

by Otavio Santana

CORE

· 11,003 Views · 2 Likes

Spring Tips: Apache RocketMQ

Learn how to get started using Apache RocketMQ with Java code in this example Spring Boot app.

April 13, 2020

by Josh Long

· 5,397 Views · 2 Likes

Spring Data JPA - Part 1

Take a look at this tutorial that demonstrates how Java Object Relational Mapping works as a method of managing relational databases in Java.

April 9, 2020

by Vinu Sagar

· 13,552 Views · 9 Likes

Introduction to Reactive Programming

This introduction to Reactive programming discusses the observable and oberserver model, as well as the operators and an example.

April 8, 2020

by Tiago Albuquerque

· 26,421 Views · 15 Likes

Complete Guide To Access Forms In Selenium With Java

This article will help you understand how you can access forms in Selenium to automate browser testing of your web application.

Updated April 8, 2020

by Aditya Dwivedi

· 12,829 Views · 4 Likes

Kafka Stream (KStream) vs Apache Flink

In this article, we take a look at two of the most popular stream processing frameworks, Flink and Kafka's Stream API, to see which is right for you.

April 7, 2020

by Preetdeep Kumar

CORE

· 31,023 Views · 12 Likes

Frequently Used Annotations in Spring Boot Applications

Take a look at this cheatsheet of some of the most frequently used annotations in Spring applications, including Core Spring, tests, and security.

April 7, 2020

by Yevgen Pikus

· 31,742 Views · 9 Likes

NGINX With Eureka Instead of Spring Cloud Gateway or Zuul

In this article, we discuss how to use NGINX and Eureka instead of Spring Cloud Gateway or Zuul for your microservices.

April 6, 2020

by Triphon Penakov

CORE

· 34,128 Views · 8 Likes

JDK 11 HTTP Client API - Handling Request/Response Body Types

In this article, we discuss how to deal with requests and response body types in an HTTP client API in Java.

Updated April 6, 2020

by Anghel Leonard

CORE

· 32,714 Views · 9 Likes

Alexa Proactive Notification Java Client Sender

In this article, we discuss how to use a Java client to easily send notifications from an Alexa Skill to your users.

April 2, 2020

by Xavier Portilla Edo

CORE

· 7,055 Views · 4 Likes

Apache Flink With Kafka - Consumer and Producer

See an example of how to share an example of consuming records from Kafka through FlinkKafkaConsumer and records to Kafka using FlinkKafkaProducer.

April 2, 2020

by Preetdeep Kumar

CORE

· 24,932 Views · 6 Likes

Microservice: Async Rest Client to DynamoDB using Spring Boot

In this post, I will be exploring using asynchronous DynamoDB API and Spring Webflux by building a simple reactive REST application.

April 2, 2020

by Yegor Bondarenko

· 13,126 Views · 6 Likes

Hexagonal Architecture in Java

In this article we discuss the benefits of hexagonal architecture and how to implement it with a simple example in Java.

April 1, 2020

by Ravi Sharma

· 20,580 Views · 19 Likes

Distributed and Guaranteed Executor Service

An overview.

Updated April 1, 2020

by Arun Lingala

· 8,375 Views · 6 Likes

How to Publish Docker Images on Private Nexus Repository Using Jib Maven Plugin

In this article, see how to publish Docker images on a private Nexus repository using Jib Maven plugin.

March 31, 2020

by Awkash Agrawal

· 9,448 Views · 3 Likes

Clean Unit Testing

In this article, I outline several tips that aim to improve the readability, maintainability and the quality of your unit tests.

Updated March 30, 2020

by Alex Staveley

· 14,679 Views · 15 Likes

How to Empty Cache memoryIdempotentRepository in Apache Camel (DSL Java)

In this article, we provide a brief tutorial on how to clear the cache memoryIdempotentRepository in an Apache Camel application.

Updated March 27, 2020

by Dr. Julia Förster

· 8,952 Views · 3 Likes

Deep Dive Into Apache Flink's TumblingWindow — Part 2

In this post, I am going to provide examples of overriding these TumblingWindow defaults and handling late values.

Updated March 27, 2020

by Preetdeep Kumar

CORE

· 14,598 Views · 6 Likes

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