Composite key and sequence generation

Author: AnghelLeonard

README.md

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 # Best Performance Practices Hibernate 5/6 & Spring Boot 2
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 - *Transaction (B)* wakes up and attempt to update the author but it cannot acquire the lock holded by *Transaction (A)*
 - DEADLOCK
 - database retry and succeeds after *Transaction (B)* releases the lock
+
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+
+279. **[How To Define A Composite Primary Key Having An Explicit Part and a Generated Part Via Sequence](https://github.com/AnghelLeonard/Hibernate-SpringBoot/tree/master/HibernateSpringBootCompositeKeySeqIdClass)**
+
+**Description:** This application is a proof of concept of how to define a composite key having an explicit part (`name`) and a generated part (`authorId` via `SEQUENCE` generator).
+
+**Key points:**
+- use `@IdClass`