Java
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How does Spring @Transactional Really Work?
In this post we will do a deep dive into Spring transaction management. We will go over on how does…
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Java 8 Optional: How to Use it
Java 8 comes with a new Optional type, similar to what is available in other languages. This post will go…
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How to use a JPA Type Converter to encrypt your data
A few days ago, I read an interesting article by Bear Giles about Database encryption using JPA listeners from 2012.…
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ActiveMQ – Network of Brokers Explained – Part 4
In the previous part 3 , we have seen how ActiveMQ helps distinguish remote consumers from local consumers which helps…
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Spring 4: @DateTimeFormat with Java 8 Date-Time API
@DateTimeFormat annotation that was introduced in Spring 3.0 as a part of Formatter SPI can be used to to parse…
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Writing Clean Tests – Replace Assertions with a Domain-Specific Language
It is pretty hard to figure out a good definition for clean code because everyone of us has our own…
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Java 8 Friday: Most Internal DSLs are Outdated
At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled…
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Java EE7 and Maven project for newbies – part 4 – defining the ear module
Resuming from the previous parts Part #1 Part #2 Part #3 We are resuming for the 4th part, our simple…
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Simplifying trading system with Akka
My colleagues are developing a trading system that processes quite heavy stream of incoming transactions. Each transaction covers one Instrument…
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