Spring Data JPA Auditing

Author: AnghelLeonard

HibernateSpringBootAudit/README.md

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+**[Spring Data JPA Auditing](https://github.com/AnghelLeonard/Hibernate-SpringBoot/tree/master/HibernateSpringBootAudit)**
+ 
+**Description:** Auditing is useful for maintaining history records. This can later help us in tracking user activities. 
+
+**Key points:**\
+     - create an abstract base entity (e.g., `BaseEntity`) and annotate it with `@MappedSuperclass` and `@EntityListeners({AuditingEntityListener.class})`\   
+     - in this base entity, add the following fields that will be automatically persisted: `@CreatedDate protected LocalDateTime createdAt;`, `@LastModifiedDate protected LocalDateTime updatedAt;`, `@CreatedBy protected U createdBy;` and `@LastModifiedBy protected U modifiedBy;`\
+     - enable auditing via `@EnableJpaAuditing(auditorAwareRef = "auditorAware")`\
+     - provide an implementation for `AuditorAware` (this is needed for persisting the user that performed the modification; use Spring Security to return the currently logged-in user)\
+     - expose this implementation via `@Bean`\
+     - entites that should be audited should extend the base entity
+          
+-------------------------------
+
+**You may like to try as well:**
+<a href="https://leanpub.com/java-persistence-performance-illustrated-guide"><p align="center"><img src="https://github.com/AnghelLeonard/Hibernate-SpringBoot/blob/master/Java%20Persistence%20Performance%20Illustrated%20Guide.jpg" height="410" width="350"/></p></a>
+