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Searching made easy with Apache Lucene 4.3

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Lucene is a Full Text Search Engine written in Java which can lend powerful search capabilities to any application. At heart of Lucene lies a file based Full Text Index. Lucene provides APIs to create this index and then add and delete contents to this index. Further it allows search and retrieval of information from this index using powerful search ...

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Android Action Bar with Tab

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Action bar was introduced from API level 11. In this post I will explain how to create tab in action bar with fragments. The final result is shown below where user can move between tabs. Creating the Action bar and the tabs The first step is getting the action bar reference and add the tab to it: @Override protected void ...

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Alternative Jobs For Bored Web/App Developers

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I’ve recently seen a spate of engineers declaring boredom and/or dissatisfaction with their current roles and responsibilities, which leads them to openly question what options are available.  Perhaps building accounting software products or maintaining the web presence of an insurance firm just isn’t inspiring you to get out of bed anymore.  This problem isn’t unique to the software industry (and ...

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Java SE 7 Update 25 – Release-Notes explained.

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Yesterday was CPU day. Oracle released the Java SE update 25 with the June Java Critical Patch Update. After the last major update in April this is the last one which does not fit into the Oracle Critical Patch Update schedule along with all other Oracle products. Starting in October 2013, Java security fixes will follow the four annual security ...

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Java EE 7 launch – Feedback and Press Coverage

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Java EE 7 is a couple of days old already. We all have had a chance to either watch the live launch events or the available replays. The last MR releases finished pushing their stuff to the JCP and it basically is a wrap. Time to reflect on what happened and what I think about it. Community Participation within the ...

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Documenting Compliance – About TCKs, Specifications and Testing

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Working with software specifications is hard. No matter in which exact filed; you end up with the big question: Does everything ever specified is implemented and tested? Back in the days of waterfall driven methodologies this has been an issue and even today at the time of writing, agility and user-stories still don’t guarantee you the perfect fit. Many of ...

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Unit Testing Tip: Create Descriptive Tests

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Your unit tests should be as descriptive as possible. The feedback they give you should be so clear you don’t even need to fire up the debugger and step one by one through the code to inspect your local variables. Why? Because that takes time and we’re lazy, right? In order to do so you need to create descriptive tests. ...

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MOXy’s @XmlVariableNode – JSON Schema Example

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We are in the process of adding the ability to generate a JSON Schema from your domain model to EclipseLink MOXy.  To accomplish this we have created a new Variable Node mapping. In this post I will demonstrate the new mapping by mapping a Java model to a JSON Schema. You can try this out today using a nightly build ...

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