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Mapping with Orika 1. Overview Orika is a Java Bean mapping framework that recursively copies data from one object to another. It can be very useful when developing multi-layered applications. While moving data objects back and forth between these layers it is common to find that we need to convert… Continue Reading orika-mapping
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An Intro to Spring Cloud Security 1. Overview The Spring Cloud Security module provides features related to token-based security in Spring Boot applications. Specifically, it makes OAuth2-based SSO easier – with support for relaying tokens between Resource Servers, as well as configuring downstream authentication using an embedded Zuul proxy. In… Continue Reading spring-cloud-security
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Introduction to Lettuce – the Java Redis Client 1. Overview This article is an introduction to Lettuce, a Redis Java client. Redis is an in-memory key-value store that can be used as a database, cache or message broker. Data is added, queried, modified, and deleted with commands that operate on… Continue Reading java-redis-lettuce
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Java Web Weekly, Issue 170 Lots of interesting writeups on Java 9 this week. Here we go… 1. Spring and Java ===== >> Java Finalization to be Deprecated? [infoq.com] It looks like Object.finalize() might be getting deprecated. [t-bg-white .l-pa2 .l-d-i#>> #]Java’s Ternary Operator in Three Minutes [sitepoint.com] A short but… Continue Reading java-web-weekly-170
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Spring Cloud Series – The Gateway Pattern 1. Overview So far, in our cloud application, we’ve used the Gateway Pattern to support two main features. First, we insulated our clients from each service, eliminating the need for cross-origin support. Next, we implemented locating instances of services using Eureka. In this… Continue Reading spring-cloud-gateway-pattern
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Introduction to javax.measure 1. Overview In this article, we’ll introduce the Units of Measurement API – which provides a unified way of representing measures and units in Java. While working with a program containing physical quantities, we need to remove the uncertainty about units used. It’s essential that we manage… Continue Reading javax-measure
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@Component vs @Repository and @Service in Spring 1. Introduction In this quick tutorial, we’re going to learn about the differences between @Component, @Repository, @Service annotations, in the Spring Framework. Further reading: Guide to Spring @Autowired A guide to the most commonest usage of Springs @Autowired annotation and qualifiers Read more → The… Continue Reading spring-component-repository-service
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A Guide to the Java API for WebSocket 1. Overview WebSocket provides an alternative to the limitation of efficient communication between the server and the web browser by providing bi-directional, full-duplex, real-time client/server communications. The server can send data to the client at any time. Because it runs over TCP,… Continue Reading java-websockets
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Java 8 Adoption in March 2016 Java 8 Adoption Trend Java 8 was released on 18 March 2014 and has seen a strong adoption trend right from the start. In October 2014, Typesafe released early numbers which had the adoption rate of the new version of the language at 27%.… Continue Reading java-8-adoption-march-2016
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Combining Observables in RxJava 1. Introduction In this quick tutorial, we’ll discuss different ways of combining Observables in RxJava. If you’re new to RxJava, definitely check out this intro tutorial first. Now, let’s jump right in. 2. Observables Observable sequences, or simply Observables, are representations of asynchronous data streams. These’re… Continue Reading rxjava-combine-observables
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