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A beginner’s guide to JPA/Hibernate flush strategies

Introduction In my previous post I introduced the entity state transitions Object-relational mapping paradigm. All managed entity state transitions are translated to associated database ...
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Feature Toggles are one of the worst kinds of Technical Debt

Feature flags or config flags aka feature toggles aka flippers are an important part of Devops practices like dark launching (releasing features immediately and incrementally), A/B ...
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Test Attribute #8 – Truthiness

I want to thank Steven Colbert for coining a word I can use in my title. Without him, all this would still be possible, had I not given up looking for a better word after a few minutes. Tests ...
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Introducing Hadoop Development Tools

Few days back Apache Hadoop Development Tools a.k.a. HDT was released.  The projects aims at bringing plugins in eclipse to simplify development on Hadoop platform. This blog aims ...
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Getting A List of Available Cryptographic Algorithms

How do you learn what cryptographic algorithms are available to you? The Java spec names several required ciphers, digests, etc., but a provider often offers more than that. Fortunately ...
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A new proximity query for Lucene, using automatons

The simplest Apache Lucene query, TermQuery, matches any document that contains the specified term, regardless of where the term occurs inside each document. Using BooleanQuery you ...
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Spring Batch as Wildfly Module

For a long time, the Java EE specification was lacking a Batch Processing API. Today, this is an essential necessity for enterprise applications. This was finally fixed with the JSR-352 ...
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Writing Tests for Data Access Code – Don’t Forget the Database

When we write tests for our data access code, we must follow these three rules:                    Our tests must use the real database ...
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Getting started with SwitchYard 2.0.0.Alpha1 on WildFly 8.1.0.Final

I’ve been sticking my head into some hot RedHat technologies lately and among the many interesting parts I found SwitchYard. Without being disrespectful towards everybody wrapping ...
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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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