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For All You Know, It’s Just a Java Library


Blast from the past… I wrote this in May, 2008… and I’ve gotta say, I was pretty spot-on including Java 8 adopting some of Scala’s better features: It’s starting to happen… the FUD around Scala. The dangers of Scala. The “operational risks” of using Scala. It started back in November when I started doing lift and Scala projects for hire. ...

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ChoiceFormat: Numeric Range Formatting


The Javadoc for the ChoiceFormat class states that ChoiceFormat “allows you to attach a format to a range of numbers” and is “generally used in a MessageFormat for handling plurals.” This post describes java.text.ChoiceFormat and provides some examples of applying it in Java code. One of the most noticeable differences between ChoiceFormat and other “format” classes in the java.text package ...

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3 Essential Ways To Start Your JBoss BPM Process


This episode of tips and tricks will help you to understand the best way to initiate your process instances for your needs. Planning your projects might include process projects, but have you thought about the various ways that you can initiate your process? Maybe you have JBoss BPM Suite running locally in your architecture, maybe you have it running in ...

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Preventing lost updates in long conversations


Introduction All database statements are executed within the context of a physical transaction, even when we don’t explicitly declare transaction boundaries (BEGIN/COMMIT/ROLLBACK). Data integrity is enforced by the ACID properties of database transactions. Logical vs Physical transactions An logical transaction is an application-level unit of work that may span over multiple physical (database) transactions. Holding the database connection open throughout ...

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Who Needs Side Projects?


The topic of side projects or personal projects for software professionals (commonly in the form of mobile apps, websites, various GitHub repos, and even technical blogs) has been fairly well-documented in the past few years. The concept of side projects as hiring barometer is still a relatively nascent industry phenomenon that emerged in parallel with the rising popularity and eventual ubiquity of open source ...

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JPA tutorial: Mapping Entities – Part 1


In this article I will discuss about the entity mapping procedure in JPA. As for my examples I will use the same schema that I used in one of my previous articles. In my two previous articles I explained how to set up JPA in a Java SE environment. I do not intend to write the setup procedure for a ...

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How to build and clear a reference data cache with singleton EJBs and MBeans


In one of my projects I had a requirement to load reference data from several sources in a Java EE 6 WebLogic environment, with EclipseLink as ORM framework. Since I couldn’t find an annotation in the Java EE world comparable to the [email protected] from Spring YET, I had to write my “own” caching solution. Although reference data barely changes over time, ...

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