OneToMany - view

[mortena]

I've just started using Seam and needs to implement the following scenarios as one of the first:

Entities:
Person - has(1-*) Address.

implemented it's something like:

public class Person{

@OneToMany
List addresses;

}

I would like to be able to:

Create a new Person with a default address in one form.
Add new addresses to an existing Person.

How do I do that?

Can seam-gen handle relationships between entities?

[pmuir]

"mortena" wrote:
Create a new Person with a default address in one form.
Add new addresses to an existing Person.

How do I do that?

You probably want to extend the createInstance() method of PersonHome generated by seam-gen to add the default address to the person.

@Override
protected Person createInstance() {
 Person person = new Person();
 Address address = // lookup default address
 person.getAddresses().add(address);
 return person;
}

Though I would normally make address an embedded entity.

Can seam-gen handle relationships between entities?

Yes

[mortena]

One Person can have many addresses.

Morten