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Enterprise Java
JPA Tutorial: Mapping Entities – Part 2
In my last post I showed a simple way of persisting an entity. I explained the default approach that JPA…
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Software Development
Logical vs physical clock optimistic locking
Introduction In my previous post I demonstrated why optimistic locking is the only viable solution for application-level transactions. Optimistic locking…
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Agile
Six Tips for Interviewing Scrum Masters, Part 2
Now that you know what you expect from your Scrum Master’s job (the deliverables), and you know the essential and…
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Software Development
Chained Access Delegation Pattern
Suppose a medium-scale enterprise that sells bottled water has a RESTful API (Water API) that can be used to update…
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Enterprise Java
Trace output with Drools
Drools 6 includes a trace output that can help get an idea of what is going on in your system,…
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Core Java
Don’t Miss out on Writing Java 8 SQL One-Liners with jOOλ or jOOQ
More and more people are catching up with the latest update to our platform by adopting functional programming also for…
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Agile
Six Tips for Interviewing Scrum Masters, Part 1
People want to know the “secret sauce” for hiring Scrum Masters and agile coaches. I wish it was easy to…
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Enterprise Java
Jar Hell made Easy – Demystifying the classpath with jHades
Some of the hardest problems a Java Developer will ever have to face are classpath errors: ClassNotFoundException, NoClassDefFoundError, Jar Hell,…
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