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Java: ChronicleMap Part 3, Fast Microservices

Standard Java Maps needs to be initialized upon startup. Learn how to leverage ChronicleMaps that is initializable from a file and reduce microservice startup times significantly and how to share Maps between JVMs. The built-in Map implementations, such as HashMap and ConcurrentHashMap are fast but they must be initialized with mappings before they can be used for looking up values. ...

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Kogito, ergo Rules — Part 1: Bringing Drools Further

The Kogito initiative is our pledge to bring our business automation suite to the cloud and the larger Kubernetes ecosystem. But what does this mean for our beloved rule engine, Drools? In this post we introduce modular rule bases using rule units: a feature that has been experimental for a while in Drools 7, but that will be instrumental for ...

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Microservices for Java Developers: Deployment and Orchestration

In this post, we feature a comprehensive article on Microservices for Java Developers: Deployment and Orchestration. 1. Introduction These days more and more organizations are relying on cloud computing and managed service offerings to host their services. This strategy has a lot of benefits but you still have to choose the best deployment game plan for your microservices fleet. Using ...

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Java Microservices with Spring Boot and Spring Cloud

spring-interview-questions-answers

Friends don’t let friends write user auth. Tired of managing your own users? Try Okta’s API and Java SDKs today. Authenticate, manage, and secure users in any application within minutes. Java is a great language to use when developing a microservice architecture. In fact, some of the biggest names in our industry use it. Have you ever heard of Netflix, ...

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Local Microservices: First-Class Procedures

This is the third article in a three part series on local microservices.  The first two articles looked at: Object Orientation Behaviour Coupling ProblemBreaking the Jigsaw These articles identified the method coupling of Object Orientation creates a monolithic jigsaw of different shaped objects.  Microservices are breaking these into more manageable, smaller jigsaws that appear similar in shape. This article continues ...

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Microservices for Java Developers: API Gateways and Aggregators

1. Introduction In this post, we feature a comprehensive article on Microservices API Gateways and Aggregators. In the last part of the tutorial we were talking about the different means of how services in the microservices architecture discover each other. Hopefully it was a helpful discussion, but we left completely untouched the topic of how other consumers, like desktop, web ...

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Local Microservices: Breaking up the Jigsaw

This is part two in a three part series looking at local microservices running in the same process.  Part one identified the coupling problems in Object Orientation behaviour (found here).  This article will look at how microservices are helping reduce the coupling problem. Part Two: Breaking up the Jigsaw Part one identified that object behaviour coupling is similar to a ...

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Local Microservices: Object Orientation Behaviour Coupling Problem

This is the first in a three part series on how I see microservices are helping in relieving the Object Orientation behaviour coupling problems.  In looking at this problem, it identifies the ability for “local” microservices. The three part series will look at the following: Identifying the Object Orientation behaviour coupling problemHow microservices are reducing this coupling problemHow local microservices ...

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Microservices for Java Developers: Configuration, Service Discovery and Load Balancing

1. Configuration, Service Discovery and Load Balancing – Introduction Slowly but steadily we are moving towards getting our microservices ready to be deployed in production. In this section of the tutorial we are going to talk about three main subjects: configuration, service discovery and load balancing. Our goal is to understand the essential basic concepts rather to cover every option ...

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