Hi, I'm wondering if I'm doing things straight regarding this subject.
I have an Entity A with PK properties a1, a2. There is another entity B with PK properties b1, b2. Between them there is an association class AB (with PK a1, a2, b1, b2). Let's suppose I have a Form for editing A objects, in which the user can choose many B values by means of a CheckBoxMultipleChoice cbmc, with model object and choice list of type List<B>. In the form's submit method, I create as many as necessary AB objects, combining selected B's id's with current A's id. class APanel extends Panel(){ private List<B> selectedBs; public APanel(){ }