About Keyhole Software

Keyhole is a midwest-based consulting firm with a tight-knit technical team. We work primarily with Java, JavaScript and .NET technologies, specializing in application development. We love the challenge that comes in consulting and blog often regarding some of the technical situations and technologies we face.

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Docker: VMs, Code Migration, and SOA Solved

It’s rare that a piece of software as new as Docker is readily adopted by startups along with huge, well established companies. dotCloud, the company that created and maintains Docker, ...
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Someday Is a Lie

“You don’t have a time machine— you’re living the same twenty-four hours we all are. You can barely make it through your day with all the current things there are to do; when ...
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Using PouchDB for Offline/Data Sync

Recently the term “Mobile First” received additional notoriety as the new CEO of Microsoft proclaimed the company’s shift in focus. As I’ve been researching mobile frameworks ...
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Java And The Sweet Science

When you have been developing in Java for 15 years and a coworker asks you to help them debug a null pointer exception, you don’t expect to be surprised. Usually it is quite obvious ...
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Don’t just randomize, truly randomize!

The state of web application cryptography has changed, and each development language provides its own way of working with it. I will touch on the current state of random number generation ...
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Processing Java Annotations Using Reflection

In my previous article covering Java Annotations, I outlined a recent use case and provided you with some examples of custom annotations and how they might be used. In this article, ...
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JAXB – A Newcomer’s Perspective, Part 2

In Part 1 of this series, I discussed the basics of loading data from an XML file into a database using JAXB and JPA. (If JSON is called for instead of XML, then the same idea should ...
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Functional Reactive Programming and JavaScript

Functional reactive programming (FRP) is an emerging programming paradigm that has recently gained popularity in the web world. That popularity isn’t just tied to fact that the video ...
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JavaScript Promises Are Cool

“And when I promise something, I never ever break that promise. Never.” ― Rapunzel Many languages have libraries of interesting schemes called promises, deferreds, or futures. ...
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JAXB – A Newcomer’s Perspective, Part 1

I know what a lot of you are already thinking, so let’s get this out of the way: “JAXB? As in XML? Come on, all the cool kids are using JSON.” The “XML vs. JSON” debate and ...
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