Four states of entity class objects in Hibernate

1. Temporary status (transient):
Created with the new statement, it is not persisted and is not in the session's cache.
ID: OID is null, no relationship is established with session.
2. Persistent State (persistent):
is scheduled to be persisted and added to the session's cache. (Why plan: If a transaction has been committed because of a transaction issue)
ID: OID is not NULL, establishes a relationship with session.
3, delete the state (removed):(can regardless, if said three states, is not this kind)
is not in the session cache, and the session is scheduled to delete it from the database.
Identity: OID is not null and is scheduled to be removed from session.
4. Off-tube status (detached):
has been persisted, not in the session cache
ID: OID is not NULL, no relationship is established with session.

Four states of entity class objects in Hibernate