one to optional one relationship in EclipseLink

Question

I've database where I'm joining tables O...1 that is one to optional one.

What tag should I use in persistence Entity class @OneToOne or @OneToMany relationship?

Thanks for your help.

Answer 1

@OneToOne is what you're looking for. Its optional attribute is used to tell if its a 1-0..1 or a 1-1. By default, optional is true, so it means that it's a 1-0..1.