O&B Insights: #jpa

Transformative Ideas for Leaders in the Fourth Industrial Revolution

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Changing The Way We Use JPA

June 24, 2021 - I’ve been updating some training materials recently, and thinking about better ways of teaching and talking about JPA. One of the things I’ve been thinking...
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Eclipselink 2.5.2 (JPA 2.1.0): Determining Fetch State

December 21, 2017 - This discussion made use of JPA 2.1.0 and Eclipselink 2.5.2. Specs and implementation and may change in future releases. It might be helpful to test with different versions by...
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Isolating the Domain Logic

January 4, 2017 - Lorenzo explains the reason why code in applications is arranged and split in a certain way, and provides tips for arranging your application. In one...
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Architectural Layers and Modeling Domain Logic

November 14, 2016 - Lorenzo corrects the impression that the domain model pattern is always the best to use. He provides options and tips on when to use (and...
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JPA Pitfalls / Mistakes

September 13, 2016 - Learn the common pitfalls/mistakes encountered that caused some problems in Java-based systems that use JPA. From my experience, both in helping teams and conducting training,...
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Spring-managed Transactions Explained – Part 1 (JDBC)

September 13, 2016 - Learn how transactions work in plain-vanilla JDBC and how Spring manages JDBC-based transactions. I’ve been meaning to write about this for quite some time now....
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Mapping a Map in JPA

July 14, 2014 - It’s common to see a java.util.List being used for a to-many mapping (with ORM). And it’s also common to need to get an element in that list using some...