Mastering JPA Performance

Demo code for my "Mastering JPA Performance" talk at Oracle Code on 25-10-2018.

All code is written in JUnit 5 and runs by default using a H2 in-memory database.

It's organized following the CRUD scheme

• Create CreateTest.java
• Read ReadTest.java including Caching
• Update UpdateTest.java
• Delete DeleteTest.java

All Tests run successfully in the default configuration, except CreateTest.java which needs to be optimized. Changing the mapping of entities may affect other tests as well.

You can

• turn off SQL output, gathering statistics or switch databases in src/test/resources/persistence.xml
• change Hibernate dependencies in pom.xml