Isolating the Domain Logic

In one design patterns class, I had an interesting discussion about modelling domain logic. Specifically, it was about isolating the…

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Architectural Layers and Modeling Domain Logic

As I was discussing the PoEAA patterns used to model domain logic (i.e. transaction script, table module, domain model), I…

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One-shot Delete with Hibernate (JPA)

In older versions of Hibernate, I can see the one-shot delete indicated in the manual. But newer versions no longer…

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Reference by Identity in JPA

In a previous post, I mentioned that I opted to reference other aggregates by their primary key, and not by…

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Spring-managed Transactions Explained – Part 2 (JPA)

In the first part of the series, I showed how transactions work in plain-vanilla JDBC. And then I showed how…

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One Thing Good Spring Developers Know

In my recent training sessions on the (core) Spring Framework, I was asked, “If there was one thing that a…

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JPA Pitfalls / Mistakes

From my experience, both in helping teams and conducting training, here are some pitfalls/mistakes I have encountered that caused some…

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