Why do I have to persist both objects if Address is nested in User?

Question

I am trying to better familiarize myself with JPA so I created a very simple project. I have a User Class and an Address class. It appears that I have to persist both even tho

Answer 1

Try the cascade element for the annotation.

@OneToMany(fetch=FetchType.LAZY, mappedBy="user", cascade=CascadeType.PERSIST) 
private List
 addresses; 

The documentation says that by default no operation is cascaded. It also states that the cascade operation is optional, so it really depends on the implementation that you are using.

Also, while setting the relationship, make sure you set both sides of the relationship. Set addresses to the user and user to the addresses.