Hibernate cache Level

Session cache:

• A series of Java collections are included in the implementation of the session interface, which forms the session cache, so that objects stored in its cache do not end the life cycle as long as the session instance does not have an end-of-life cycle and the cache is not cleaned up.

• Session caching can reduce the frequency with which hibernate applications access the database. In this test code, only the database is accessed once, and the second time is accessed through the cache.

• The news object has three references: Session cache, NEWS1, news2.

Operation Session Cache:

• Flsush (): When an object in the session cache changes, flush () is automatically called, and an SQL statement (Update/insert/delete) is eventually invoked to synchronize the session cache with the database.

Hibernate cache Level