Hi,


I have an object Services that have 3 attributes : the name, the number and a collection of Person.
A Person has 3 properties : name, surname and age adn is identified by her name and surname.
The update of Person is made by cascade update when I update the Services.

Now, I have hibernate that extracts from a database all the Persons linked
to an Service and returns them to me in a Set.

Then I put the set through another tier of the application.

I make changes over the Person with the name

Use the cascade all for your object Set.
And for update you can use the session.update(POJO)