Unwrap vs Out

[soares]

Can somebody explain a little bit about @Unwrap and @Out annotations?
Which one is more performatic? And what is the best pratices to use these annotaions?
Which one is more appropriated for each case?

[asookazian]

A good way to understand this is to read the Seam ref doc or a Seam book and then search the Seam core source or Seam example source code for examples of when/how to use those two annotations.

@Out is a direct outjection to a specified (or default) scope whereas @Unwrap is associated with the manager component pattern.

The @Unwrap method is called every time the component's name is referenced in a JSF, for example.  Outjection occurs for all @Out annotated context variables after a business method successfully completes.

The concern is not performance, they are used for different scenarios...