@In and @Factory

[gersonk]

Code example:

...
@Name("componentA")
@Stateful
public class ComponentA{

 @In(required=false)
 @Out(required=false, scope=PAGE)
 private Integer x;

 @Factory("x")
 public void initX(){
 x = 1;
 }

 public void someMethod(){
 ... // why is 'x' null here?
 }

}

How I can tell Seam to invoke the Factory Method whenever someMethod() is called if 'x' is null?

[nickarls]

if (x == null) {
 initX();
}

;-)

If think that if someMethod is called before "x" has been referenced, it can be null.

[norman.richards]

Factories are not for initializing your state for your own use. You could probably self-inject x or call Component.getInstance() or something. If you are really trying to expose that state outside your object and need it internally, put an @Create on that @Factory method.