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Leveraging new features in Drill 1.2 – ANSI SQL Analytic/Window functions

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Today we are very excited to announce the latest version of Apache Drill, 1.2,) as part of the MapR distribution. Drill 1.2 packages for MapR can be downloaded http://doc.mapr.com/display/MapR/Apache+Drill+on+MapR You can experiment with the release using MapR sandbox and various hands on tutorials at https://www.mapr.com/products/mapr-sandbox-hadoop/download-sandbox-drill Apache Drill has been gaining significant user adoption and community momentum since its initial Beta ...

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Docker Java App Deployment – 4 App Stacks: Tomcat, GlassFish, Jetty and JBoss

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Sign Up for FREE on http://DCHQ.io to get access to out-of-box multi-tier Java application templates (including the Movie Store app on Tomcat, JBoss, GlassFish and Jetty) along with application lifecycle management functionality like monitoring, container updates, scale in/out and continuous delivery. Background Java developers and DevOps professionals have long struggled to automate the deployment of enterprise Java applications. The complex ...

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jOOQ Tuesdays: Markus Winand is on a Modern SQL Mission

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Welcome to the jOOQ Tuesdays series. In this series, we’ll publish an article on the third Tuesday every other month where we interview someone we find exciting in our industry from a jOOQ perspective. This includes people who work with SQL, Java, Open Source, and a variety of other related topics. We are excited to talk with Markus Winand in ...

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FREE Slides Framework Licenses Giveaway from Java Code Geeks and Designmodo (total value of $498)!

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Want to create beautiful animated websites? Then we have something especially for you! We are running a contest giving away FREE licenses for the kick-ass Slides framework. The best way to showcase your product is a presentation and Slides is the perfect way to present your ideas. Slides provides a step-by-step way for you tell a story about your product ...

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A beginner’s guide to read and write skew phenomena

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Introduction In my article about ACID and database transactions, I introduced the three phenomena described by the SQL standard: dirty read non-repeatable read phantom read While these are good to differentiate the four isolation levels (Read Uncommitted, Read Committed, Repeatable Read and Serializable), in reality, there are more phenomena to take into consideration as well. The 1995 paper (A Critique ...

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Ctrl+1 in the Eclipse XML Editor

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The XML Editor is included in several of the Eclipse IDE downloads. It has two view modes: in design mode, you can edit your XML as a tree; in source mode, you edit as text. By default, it opens in design mode, which may seem a little weird (I’ve added Bug 480036 to the list of EclipseCon Europe 2015 Hackathon bugs ...

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Scala extractors infix sample with Rational numbers

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I keep coming back to the awesome introductory material on Scala put together by Daniel Westheide. One of the examples that he provides for extractors using an infix operation pattern is the Streams API – val xs = 58 #:: 43 #:: 93 #:: Stream.empty xs match {   case first #:: second #:: _ => first - second   ...

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Basics of scaling Java EE applications

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To be honest, ‘scalability’ is an exhaustive topic and generally not well understood. More often than not, its assumed to be same as High Availability. I have seen both novice programmers and ‘experienced’ architects suggest ‘clustering‘ as the solution for scalability and HA. There is actually nothing wrong with it, but the problem is that it is often done by ...

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Spring Boot Oauth2 Security

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This post is an enhancement for my previous post which talks about how to secure your REST API using Spring security oauth2. In case if you missed it, here is the place to grab: http://blog.rajithdelantha.com/2015/09/secure-your-rest-api-with-spring.html Spring boot is one of the new inventions from Spring framework that makes developers’ lives easier when building large scale applications. Here is a good ...

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