Simple examples needed

[mortena]

I need to do the following:

Create a form, where I can edit the Credentials of a User and the user.

User.java has properties:

String firstName,
String surName
Credential credential

Credential.java has properties:

username,
password.

Now I'm creating a form where I can edit the firstName and surName of the user and the users credentials.

How can I create an input field where i can edit the credentials of the user?

I've tried:

<h:inputText required="true"
value="#{userHome.instance.credential.username}"/>

But it gives an error saying that the credentials are null:

Target Unreachable, 'credential' returned null on 'com.tmn.smile.model.User'".

Any hints on where I can find simple examples showing how these things should be done?

[damianharvey]

Look at the 'examples' folder in your Seam directory.

For your problem you just need to instantiate a Credential when you create a new User in UserHome. Try doing this in createInstance().

Cheers,

Damian.

[mortena]

I Changed the following in UserHome generated by seam-gen:

@Override @Begin
 public void create() {
 super.create();
 }

to:

@Override @Begin
 public void create() {
 super.create();
 super.getInstance().setCredential(new Credential());
 }

Added a line where I manually create a new credential.

Now it works.

[mortena]

I was a little too fast there.

Make sure you only set the credentials if the credentials are null.

Else they'll be overwritten.

[ivan.tufegdzic]

When you create User in that moment you must create Credential. After that link that entities.
user.setCredential(that new credential);