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Clean Code: Don’t mix different levels of abstractions


We spend more time on reading code than writing. So if the code is more readable then obviously it will increase the developer productivity. Many people associate readability of code with coding conventions like following standard naming conventions, closing file, DB resources etc etc. When it comes to code reviews most of the people focus on these trivial things only, ...

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The bad Agile demand curve


In explaining the Agile Demand curve I told a good news story in the previous entry. This time I want to tell a bad news story. This is every classical Project Managers’ fear about Agile, its story we don’t tell often but it can happen. Once I’ve told this story we can proceed to the proper analysis of the Agile ...

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Ruby 2.1 Released


Ruby 2.1 is officially released. According to Ruby 2.1.0 Released, Delivering new GC Ruby 2.1 release has brought changes in garbage collector that will improve performance. The “Mark & Sweep” implementation of previous versions is now replaced by the RGenGC (Restricted Generational Garbage Collection) implementation. As Ruby developer Koichi Sasada had observed in April 2013, the challenge was to implement ...

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Project Student: Business Layer


This is part of Project Student. Other posts are Webservice Client With Jersey, Webservice Server with Jersey and Persistence with Spring Data. The third layer of the RESTful webapp onion is the business layer. This is the guts of the application – well-written persistence and webservice layers are constrained but anything goes in the business layer. We’re only implementing CRUD ...

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Attitudes of a Great Software Developer !!!


Software development is an art, not just a science.  You can learn all the technicalities of software development, but you need to be absolutely passionate about coding and perceive it as an art to be extremely good at it.  If you are one such person, I will introduce you to the journey of becoming a “Great Developer”.  The objective of ...

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Deployment with Drools 6.0


KieScanner The 6.0 KieScanner replaces the 5.x KnowledgeAgent. It uses embedded Maven to allow the resolving and retrieving of jars at runtime. 6.0 applications can now easily support dependencies and transitive dependencies; using well known Maven semantics for versioning. It allows for deployment on the class path and also dynamically at runtime. Currently it supports manual “scanNow” and interval polling, ...

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Reactive Cassandra


Or an adventure on reading data reactively from Cassandra. Overview Let’s first try to define what reactive means from programming point of view. Functional reactive programming is programming paradigm for reactive programming using the building blocks of functional programming. Functional programming is a programming paradigm, a style of building the structure and the elements of computer programs, that treats computation, ...

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10 Persona Tips for Agile Product Management


1. Start with Provisional Personas As its name suggests, a provisional persona is not a fully-fledged, detail rich user model, but a first version that is good enough to start discovering the right user experience and the right product features. Working with sketchy but good enough personas is particularly helpful in an agile and lean context where we want to ...

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Java, the Steam controller and me


Do you ever wondered if you could use existing stuff for something new? I saw some footage of the so-called ‘Steam controller’ (SC from now on) and looked at my game pad. Asking myself if it would be possible to use it in a steamy-like way, I’ve found some Java libraries and created a project that I’d like to share ...

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Significant Software Development Developments of 2013


At the end of each calendar year, I like to summarize some of the most significant developments in the software development industry that happened during the year that is ending. The choice of these is entirely subjective and obviously colored by my own experience, background, perceptions, and preferences. Not worrying about the opinionated content of such a post, I now ...

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