JavaEE7 Archives - Thorben Janssen

JavaEE7

Java EE Pitfalls #1: Ignore the default lock of a @Singleton

ByThorben Janssen

EJB Singleton Beans were introduced by the EJB 3.1 specification and are often used to store cached data. This means, we try to improve the performance of our application by using a Singleton. In general, this works quite well. Especially if there are not too many calls in parallel. But it changes if we ignore…

Testing with Aliens: How to test a JPA Attribute Converter with Arquillian

ByThorben Janssen

This post was written together with Aslak Knutsen (@aslakknutsen). JPA Attribute Converters provide an easy way to define how an entity attribute gets persisted to the database. You can use them to implement lots of different features, e.g. to encrypt your data as I showed in a previous post: How to use a JPA Attribute Converter…

JavaEE7

Java EE Pitfalls #1: Ignore the default lock of a @Singleton

Testing with Aliens: How to test a JPA Attribute Converter with Arquillian

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