Natural Born Coder

Year: 2013

  • Test Credit Card Numbers

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    doozer
    in

    A while back now I had to write a system to process credit cards. Since the software was capturing the card number itself it could perform some initial checking on the number to ensure that the user hadn’t made a trivial typing error.

  • Joomla and PageSpeed

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    doozer
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    A while back I installed the PageSpeed module for Apache in an effort to improve my sites performance. How much of an affect it has is debatable but the site scores more highly on the Google PageSpeed score which is a good thing since now it won’t suffer a listing penalty for being slow.

  • Subtle Subversion Problem

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    doozer
    in ,

    Here’s a problem you don’t see everyday which really shows up the stupidity of the whole case sensitive / insensitive filesystem battle between Windows and Unix like operating systems. Fortunately a lot of work has been done to make the two different schools of thought play together nicely but occasionally something falls through the cracks…

  • JavaFX 2 with JPA 2 and Drag and Drop – Part 3

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    doozer
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    This article will cover a method that can be used to include more than one entity type in a tree (the same system will work for other widgets such as lists and tables) by using a proxy holder. The previous articles in this series covered setting up the demo application and getting started with JPA.

  • Installing mod_pagespeed on Ubuntu

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    doozer
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    The mod_pagespeed extension is designed to reduce the load time of pages on a web site by performing certain optimizations such as  optimizing images and minifying CSS and JavaScript. This guide covers installing mod_pagespeed on an Apache server running under Ubuntu 12.04. The process should be the same for later versions of Ubuntu as well.

  • JavaEE 7 – A First Look

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    doozer
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    Now that JavaEE 7 is out of the starting blocks and running free I thought I’d have a first look. I decided that as I’ve not had a look at the JavaEE tutorial for a while I’d work my way through it as both a refresher and to find out about the new API’s available.…

  • SampleFX – Updating a Label

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    doozer
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    The humble label is probably one of the most used widgets in the UI designers toolkit so getting to know it inside and out is important. A common task it is to update a label to display some new information depending on the state of the application. Depending on where that new information comes from…

  • SampleFX Mini-Demos

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    doozer
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    I’ve taken a short break from the JavaFX and JPA series of articles because I wanted to start a new project that demonstrates common day to day tasks in JavaFX. I’ve called this project SampleFX5 and you can download it here.

  • JavaFX 2 with JPA 2 and Drag and Drop – Part 2

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    doozer
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    In the first part of this series I gave an over view of the project and how to install and run it. Now I’ll cover the JPA aspects of the project.

  • JavaFX 2 with JPA 2 and Drag and Drop – Part 1

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    doozer
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    After a bit of a break away doing other things I’m back on a project that uses JavaFX 2. So far this project hasn’t required much in the way of persistence either for settings or data but a new feature I’m working on makes use of a database. I use JPA 2 for web based…

  • XPath, JAXP and the Default Namespace

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    doozer
    in ,

    So you’ve just finished parsing a document with your validating namespace aware document factory and you’ve gone to select some nodes using XPath and nothing has appeared (no nodes where selected). You’ve tried changing the XPath expression, making it simpler and simpler and still nothing. Chances are it’s not he XPath that’s at fault it’s…

  • PrimeFaces p:fileUpload not Appearing

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    doozer
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    I hit this issue with the PrimeFaces p:fileUpload component this morning and it had me going for about an hour until I figured out what was wrong. A good googling shows that more than a few people have hit this problem but no one had reported a solution, there was even a bug report closed…