Hibernate should update only certain fields in the database

Question

I have a database trigger which executes on insertion of data. From the application end, I use hibernate to update the same table which is update by the database TRIGGER. The data which was updated by Trigger gets overwritten by the older data when I update the data from the application end.I figured out that the cached value in hibernate is not in sych with the value from the database. Is there a proper way to get around this? The cache I am talking about is First level cache.

EDIT - Hibernate should update certain fields in the database and other fields in the database should be updated by the TRIGGER. Is this possible?

Answer 1

You can use refresh:

session.merge(entity);
session.flush();
//the trigger has been called
session.refresh(entity); 
//the entity will reflect the trigger changes

Answer 2

My issue was really what is mentioned in the EDIT of the question. The simple solution to the problem is as mentioned by Vlad in the comments. Mark the columns as @Column(name = "dob", insertable = false, updatable = false). This is help avoid any major surprises if hibernate updates the table.