Understanding @In and contexts (page and session)

[gzoller.greg.zoller.aviall.com]

Hello,

I have a page-scoped component in which I'm trying to inject a session-scoped component.

I tried the following, but cart is null, even though I can go to the debug page and clearly see it in my session scope.

@Name("lineScroller")
@Scope(ScopeType.PAGE)
public class CartLinesScrollerVO {     
     @In private CartVO cart; // cart is null, even though it exists in session scope

But this works:

@Name("lineScroller")
@Scope(ScopeType.PAGE)
public class CartLinesScrollerVO {
     private CartVO cart = (CartVO) Contexts.lookupInStatefulContexts("cart");

Why does this work but the first one won't?

Thanks,
Greg

[amitev]

What's the @Name of CartVO component?

[gzoller.greg.zoller.aviall.com]

Ah... that was it!

I had no @Name.  The CartVO object was @Out-jected in a session-scoped object.  I added a @Name to CartVO and then my @In worked as it should.

Thanks for the help!
Greg

[gzoller.greg.zoller.aviall.com]

D'oh!  I lied.  That wasn't the solution... still seeing the problem.

Here's the code that creates the outjected CartVO:

@Name("cartMgr")
@Scope(ScopeType.SESSION)
public class CartMgr {
     @Out private CartVO cart;
     private int count = 500;

     public CartMgr() {
          this.cart = new CartVO();
          this.cart.setOrder(new OrderBO(count));
     }
     
     public int getCount() {
          return count;
     }
}

This appears to work.  If I go to the debug page I do see a cart object in the session context as I expect.  Just don't know why my other class is having trouble injecting it.

Greg