Using PostgreSQL, why doesn't Hibernate/JPA create cascade constraints?

Question

I have an entity Bar:

@OneToMany(cascade = CascadeType.ALL, mappedBy = \"bar\")
private Set fooSet;

And an entity

Answer 1

Using

 cascade = CascadeType.ALL

causes hibernate to traverse this relationship if you perform any operation. It doesn't influence generated DLL.

If you want to delete all entities in fooSet add orphanRemoval attribute.

@OneToMany(cascade = CascadeType.ALL, mappedBy = "bar", orphanRemoval=true)

Also using

is good ONLY for development environment. Don't use it for production. (e.g. hibernate can't know how to change table schema if you for example rename a property/column wil create another column and maybe even drop the previous one).