learn-jpa-hibernate-L2-caching

Learn JPA Hibernate

TL;DR Level 2 Caching HOW-TO

To enable Hibernate Level 2 caching:

1. Include hibernate-ehcache in your project
2. Create an ehcache.xml file in src/main/resources that defines each type of cache that you want; you can define both entity and relationship caches
3. Update spring.jpa.properties.hibernate in application.yml to enable second level caching with ehcache
4. Annotate each cacheable entity bean with @Cacheable and@org.hibernate.annotations.Cache as shown in the Course entity bean
5. Annotate each cacheable relationship with @org.hibernate.annotations.Cache again as shown in Course::students
6. Queries are cached by annotating finder methods in repository beans with @QueryHints as shown in TeacherRepository
7. Verify via a test case that the configuration works