Dev news digest for January 11, 2013

Links for good and bad practices when developing APIs

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Java EE 7 Public Draft was Published.

In terms of completeness, the Web Profile offers a complete stack, with technologies addressing presentation and state management. (JavaServer Faces, JavaServer Pages), core web container functionality (Servlet), business logic (Enterprise JavaBeans Lite), transactions (Java Transaction API), persistence (Java Persistence API) and more.

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Selecting your Collections Library

As often happens with of our articles – in 95% of your problems at hand the libraries introduced here will not add anything besides complicating your setup. But on the rare occasions when you need additional features or need to squeeze out the last bit of performance – it is good to be familiar with the landscape. And make an educated choice before writing a half-baked solution yourself.

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NoSQL or Traditional Databases: Not Much Difference

I have spent considerable time tuning SQL statements and indexes, but in the end the best optimizations have always been those on the application and how the application uses the database. SQL Tuning almost always adds complexity and often is a workaround over bad application or data structure design. In the NoSQL world “SQL statement” tuning for the most part is a task of the past, but Data Structure Design has retained its importance! At the same time logic that traditionally resided in the database is now in the application layer, making application design even more important than before. So while some things have shifted, from an Application Performance Engineering Perspective I have to say: nothing really changed, it’s still about the application. Now more than ever!

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