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Thorben Janssen

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titleconferencedate
Cause of Death: Spring Data JPASpring I/O 20252025-05-22
Spring Data JPA with Hibernate shows concrete failure modes and fixes: switching fetch to eager causes lazy initialization exception avoidance but creates N+1…
Talk on
Create Your Perfect Persistence StackJCON WORLD ONLINE 20232023-11-20
Shows a concrete stack: Hibernate for managed CRUD and lifecycle (avoid saveAndFlush, use @Generated for DB-generated columns), jOOQ for complex SQL via DSL…
Talk on
3 Patterns for Scalable MicroservicesJCON-ONLINE 20212021-10-05
Explains three patterns for keeping microservices scalable and consistent without distributed transactions: the Outbox Pattern, the View (read-model) Database…
Talk in German on
Cause of Death: Hibernate.Devoxx Ukraine 20202020-11-05
Shows concrete Hibernate pitfalls with code and numbers: eager fetch turns one query into N+1 (6 authors → 7 JDBC statements), list vs set causes wholesale…
Talk on
Cause of Death: HibernateJ-Fall Virtual 20202020-11-03
Shows concrete bugs and fixes: using fetch type eager causes an N+1 of one query per author, while one left join fetch eliminates it; modeling many-to-many…
Talk on
The Hibernate universe far from known CRUD galaxiesW-JAX 20182018-11-05
Overview of Hibernate and its extensions for enterprise needs beyond simple CRUD: Hibernate Search for full-text search and Hibernate Envers for auditing, plus…
Talk in German on
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