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Fixing The Android Camera API

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The other day I participated in a company hackathon and I decided to make use of the Android camera. I’ve always said that the Android APIs are very bad (to put it mildly), but I’ve never actually tried to explicitly say what is wrong and how it could be better. Until now. So, the Camera API is crappy. If you ...

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Abstract Class Versus Interface in the JDK 8 Era

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In The new Java 8 Date and Time API: An interview with Stephen Colebourne, Stephen Colebourne tells Hartmut Schlosser, “I think the most important language change isn’t lambdas, but static and default methods on interfaces.” Colebourne adds, “The addition of default methods removes many of the reasons to use abstract classes.” As I read this, I realized that Colebourne is ...

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Secure DevOps – Seems Simple

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The DevOps security story is deceptively simple. It’s based on a few fundamental, straight forward ideas and practices: Smaller Releases are Safer One of these ideas is that smaller, incremental and more frequent releases are safer and cause less problems than big bang changes. Makes sense. Smaller releases contain less code changes. Less code means less complexity and fewer bugs. ...

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Base64 in Java 8 – It’s Not Too Late To Join In The Fun

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Finally, Java 8 is out. Finally, there’s a standard way to do Base64 encoding. For too long we have been relying on Apache Commons Codec (which is great anyway). Memory-conscious coders will desperately use sun.misc.BASE64Encoder and sun.misc.BASE64Decoder just to avoid adding extra JAR files in their programs, provided they are super sure of using only Sun/Oracle JDK. These classes are ...

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Introduction to Nashorn

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Java 8 introduced and new javascript engine named “Nashorn”. Nashorn is based on Da Vinci Machine, a project with aim of adding dynamic language support to JVM. Nashorn is a nice milestone to make the hybrid softwares easier than before. The nice features of this engine makes you able to make a full duplex communication between your java (any other compiled ...

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db.person.find( { “role” : “DBA” } )

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Wow! it has been a while since I posted something on my blog post. I have been very busy, moving to MongoDB, learning, learning, learning…finally I can breath a little and answer some questions. Last week I have been helping my colleague Norberto to deliver a MongoDB Essentials Training in Paris. This was a very nice experience, and I am ...

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Getters and setters gone wrong

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Conventions are great when you can speed up your coding and automatically provide self-documenting and standard solutions and that’s probably one of the main reasons why the Convention over configuration pattern got so popular and extended. And that’s fine, unless you abuse or misuse them, as usual, breaking user (or reader) expectations and therefore increasing confusion and time consuming (that ...

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Notes to students doing research about Agile

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The dissertation/thesis writing season is approaching so I expect the recent set of questions from a student is the first of many. Actually they occur all year round but March to September is the busy period. So, to pre-empt any students bearing questions about Agile – and so I can just repeat my stock answers – here are some ideas ...

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Custom Git Commands in 3 Steps

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I’m lazy and so I seek ways to reduce repetitious activities. For instance, I’ve spent a lot of time in a terminal typing Git commands. A few of the more common commands, I’ve aliased. If I want to see a list of branches, I used to type:                 Listing Git branches $> git ...

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Careful With Native SQL in Hibernate

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I really like Hibernate, but I also don’t know a tool that would be nearly as powerful and deceptive at the same time. I could write a book on surprises in production and cargo cult programming related to Hibernate alone. It’s more of an issue with the users than with the tool, but let’s not get too ranty. So, here’s ...

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