How to cascade sleep

Question

I have objects A and B.

Object A is similar to

class A{ Set<B> } 

Now when I save A, I want all the objects in Set<B> of A to be automatically saved to the database. How can i do this?

Answer 1

 // Use the cascade option in your annotation @OneToMany(cascade = {CascadeType.ALL}, orphanRemoval = true) public List<FieldEntity> getB() { return fields; } 

Answer 2

The question from Ransom will work if you work through EntityManager and use pure JPA annotations. But if you use Hibernate directly, you need to use your own annotation for cascading.

 import org.hibernate.annotations.Cascade; import org.hibernate.annotations.CascadeType; ... @OneToMany @Cascade({CascadeType.SAVE_UPDATE, CascadeType.DELETE}) public List<FieldEntity> getB() { return fields; }