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Java EE Workflows on OpenShift (Tech Tip #64)

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                        This webinar shows how create a Java EE workflow on OpenShift using WildFly, JBoss Tools, Forge, Arquillian, and OpenShift. Specifically it talks about: How a Java EE application can be easily developed using JBoss Developer Studio and deployed directly to OpenShift Set up Test and Production instances on OpenShift ...

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JavaFX in the browser

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Lately Carl Dea and I have started a new project to bring JavaFX 8 into the browser. Today I want to introduce the first two proof-of-concepts that we created to see if this idea is feasible at all. For the impatient, here are the links to the PoCs. But be warned, startup time is horrible at this point. It can ...

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Implementing the ‘Git flow’

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Git can be used in a variety of ways which is cool. But still, when working within a team, it is good to have a consensus on a common, shared approach in order to avoid conflicts. This article quickly explains how we implemented the “git flow” pattern in one of our projects. Git-flow… …is a popular strategy which works around ...

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Patching Weld 3 in WildFly 8.2 – First Experimental RI of Java EE 8

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Java EE 8 is moving along and several new component JSRs have been filed. JSR 365 will define the specification for CDI 2.0. Red Hat has already started working on the implementation prototype in Weld 3 and Alpha3 was released recently. The Java EE 8 compliant application server from Red Hat will be WildFly where all the different technologies will be implemented. In the meanwhile, ...

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Grails domain classes and special presentation requirements

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In Grails we often use our domain objects directly as backing model for presentation purposes and only for specialized situations we create value holder objects or DTOs. Beginning Grails developers know how to display individual entity properties pretty easy in a GSP, such as the name of a fictional domain class…             <g:each in=”${breedingGoals}” var=”breedingGoal”> ...

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Run Java EE Tests on Docker using Arquillian Cube

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Tech Tip #61 showed how to run Java EE 7 Hands-on Lab using Docker. The Dockerfile used there can be used to create a new image that can deploy any Java EE 7 WAR file to the WildFly instance running in the container. For example github.com/arun-gupta/docker-images/blob/master/javaee7-test/Dockerfile can be copied to the root directory of javaee7-samples and be used to deploy jaxrs-client.war file to the container. Of course, ...

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Message Processing with Spring Integration

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Spring Integration provides an extension of the Spring framework to support the well-known Enterprise Integration Patterns. It enables lightweight messaging within Spring-based applications and supports integration with external systems. One of the most important goals of Spring Integration is to provide a simple model for building maintainable and testable enterprise integration solutions.             Main Components ...

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Accessing Meetup’s streaming API with RxNetty

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This article will touch upon multiple subjects: reactive programming, HTTP, parsing JSON and integrating with social API. All in one use case: we will load and process new meetup.com events in real time via non-bloking RxNetty library, combining the power of Netty framework and flexibility of RxJava library. Meetup provides publicly available streaming API that pushes every single Meetup registered ...

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Don’t be “Clever”: The Double Curly Braces Anti Pattern

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From time to time, I find someone using the double curly braces anti pattern (also called double brace initialisation) in the wild. This time on Stack Overflow:                 Map source = new HashMap(){{ put("firstName", "John"); put("lastName", "Smith"); put("organizations", new HashMap(){{ put("0", new HashMap(){{ put("id", "1234"); }}); put("abc", new HashMap(){{ put("id", "5678"); }}); }}); ...

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Creating a REST API with Spring Boot and MongoDB

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Spring Boot is an opinionated framework that simplifies the development of Spring applications. It frees us from the slavery of complex configuration files and helps us to create standalone Spring applications that don’t need an external servlet container. This sounds almost too good to be true, but Spring Boot can really do all this. This blog post demonstrates how easy ...

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