Advanced Software
Engineering
Made Simple

It’s been a while now since the first specifications of JSTL. Since then it emerged as a standard for the presentation layer in web applications, replacing the ugly scriptlets with nice looking tags that resembles the HTML or XML markup. JSTL provides tags for typical presentation layer tasks, such as iterations, conditional content, data formatting, XML manipulation and database access, and its expression language makes working with dynamic attribute values a lot easier.

After some years of Hibernate or Spring+Hibernate, it was time to try something new. Not for the sake of trying something new, but more out of the need. The problem Think of a legacy database, very generic, without a clear business model representation. As a metadata storage database, different business objects persisted in the same data structures. The solution Navigating…
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The problem: Import a large number of items into a database, commit valid ones, and keep track of invalid ones. All in a single transaction. Traditional solution: Tedious to write. Programatically start a transaction and set a savepoint for each processed item. Rollback to savepoint if an exception occurs or commits if all ok. Spring solution: Easy, just modifying the…
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