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Accurest and Stub Runner 1.1.0.M3

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Currently at the Spring Team we’re polishing our libraries for the upcoming final release of the Brixton train. It should happen soon :) Until then I’m spending a lot of my after work, free time on Accurest and Stub Runner. Today’s post will be about the new stuff that you will be able to profit from in the upcoming 1.1.0 ...

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Application Modules and Entity Cache

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Any ADF developer with some basic knowledge of ADF Business Components would be familiar with the following diagram: It represents the core building blocks of ADF Business Components at run-time. There is an instance of a root application module containing view object instances. View object instances might be backed up by entity objects that are stored in entity collection or in other words entity ...

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Microservices are about applying a group of Best Practices

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Microservices Denial A number of times clients have said; they can’t imagine their organisation using Microservices. I found this surprising as I know those people are using many of the principles of Microservices already. I can understand that they feel no need to join the hype around microservices, but the reality is, like it or not, you are most likely ...

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Scalaz features for everyday usage part 2: Monad Transformers and the Reader Monad

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For the second article of the “Scalaz features for everyday usage” we’ll look at the subject of Monad transformers and the Reader monad.Let’s start with Monad Transformers. Monad transformers come in handy when you have to deal with nested Monads, which happens suprisingly often. For instance when you have to work with nested Future[Option] or Future[Either], your for-comprehensions can quickly ...

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Spring Boot and Database initialization

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Spring boot is hands down a great framework, saving the developer a lot of time and energy when developing a spring application. One of its great features is database initialization. You can use spring boot in order to initialize your sql database. We will start with the gradle file group 'com.gkatzioura' version '1.0-SNAPSHOT' apply plugin: 'java' sourceCompatibility = 1.5 buildscript { repositories ...

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Async systems with sync clients

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As the Reactive Manifesto says Reactive systems are: Responsive, Resilient, Elastic and Message Driven. The last principle often goes together with non-blocking async protocols. This style of communication “allows recipients to only consume resources while active, leading to less system overhead”. This fits perfectly with new demands of efficiency derived from the elastic model of cloud providers. However not every ...

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Limitations of a Monolithic application and need for adapting Micro services Architecture

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If you get hold of any earlier software architectures, you will see that they have always been built in a Monolithic way.                 1. So what is this Monolithic architecture all about? According to Wikipedia, Monolithic definition goes as below: In software engineering, a monolithic application describes a single-tiered software application in which the user interface and data access code ...

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CLDB Monitoring Using JMX as a Modern Alternative to Ganglia

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There are many options for monitoring the performance and health of a MapR cluster. In this post, I will present the lesser-known method for monitoring the CLDB using the Java Management Extensions (JMX). According to one of the most highly regarded MapR Data Engineers, Akihiko Kusanagi, using JMX to get CLDB metrics can be seen as a more modern and ...

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The Top 10 Advanced Java Talks You Should See to Stay Relevant

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One of the main resources for learning about new things in software development, is online talks and videos. You can find Java experts sharing their experience with you, without getting off the couch. In the following post we’ve gathered 10 of our favorite speakers and topics that we believe every Java developer should watch. Get the popcorn, sit back and ...

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