Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!

 

1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

 

and many more ....

 

 

Cassandra At The Heart Of Globo’s Live Streaming Platform

apache-cassandra-logo

A couple of years ago my friend Juarez Bochi wrote a post, here on Planet Cassandra, sharing the challenges we had implementing Globo.com’s live streaming platform, specially with the migration from Redis to Cassandra. For those not familiar, Globo.com is the internet branch for Grupo Globo, one of the 5 largest media conglomerates in the world, producing content such as ...

Read More »

JSON Web Tokens With Spring Cloud Microservices

At Keyhole, we have published several blogs about Microservices. We’ve talked about architectural patterns used in a Microservices environment such as service discovery and circuit breaker. We’ve even posted blogs on platforms and tools, such as the recent blog on Service Fabric. One important piece of the architecture that we have glossed over is the security around Microservices. Specifically, authentication ...

Read More »

Microservices with Spring Boot, Axon CQRS/ES and Docker

docker-logo

In the last year or two, the pace of change in software architecture has rapidly advanced with new approaches like DevOps and Microservices becoming hot topics overnight. In this post, I want to introduce you to a project that I’ve been working on which combines two of the stand out architectural advances of the last few years: Microservices and the Command and Query Responsibility Separation ...

Read More »

JSON Web Tokens With Spring Cloud Microservices

spring-interview-questions-answers

At Keyhole, we have published several blogs about Microservices. We’ve talked about architectural patterns used in a Microservices environment such as service discovery and circuit breaker. We’ve even posted blogs on platforms and tools, such as the recent blog on Service Fabric. One important piece of the architecture that we have glossed over is the security around Microservices. Specifically, authentication ...

Read More »

Java Arrays Sort decoded

java-logo

Sorting is one the first algorithm that we learn in computer science. Sorting is such an interesting area that it has around 20+ algorithm and it is always difficult to decided which one is best. Sorting algorithm efficiency is measured in terms of time taken & space required. Some time bubble sort is best because it has no space requirement and for ...

Read More »

Creating Value Objects with Immutables

java-logo

In response to my recent post AutoValue: Generated Immutable Value Classes, Brandon suggested that it might be interesting to see how AutoValue compares to Project Lombok and Immutables and Kevin seconded this. I agree that this is a good idea, but I am first publishing this post as a brief overview of Immutables because I have already provided similar posts ...

Read More »

Thinking in Abstractions

software-development-2-logo

Recent issues of the Clojure Gazette have been discussing abstractions, and it’s got me thinking. I am wary of needless abstractions and have seen many codebases, some of them I contributed to, that are essentially a mindless mess of half-backed abstractions. Here’s what I’m thinking … Abstractions have a half-life Abstractions have a half-life, that is to say, there will ...

Read More »

Java 8: Default Method Resolution Rules

java-logo

With the introduction of default methods in Java 8, it is now possible for a class to inherit the same method from multiple places (such as another class or interface). The following rules can be used to determine which method is selected in such cases: A class or superclass method declaration always takes priority over a default method Otherwise, the ...

Read More »

Want to take your Java skills to the next level?

Grab our programming books for FREE!

Here are some of the eBooks you will get:

  • Advanced Java Guide
  • Java Design Patterns
  • JMeter Tutorial
  • Java 8 Features Tutorial
  • JUnit Tutorial
  • JSF Programming Cookbook
  • Java Concurrency Essentials