Ask for some understanding

[hispeedsurfer]

I know Seam for a while, but have some questions regarding things like @Scope. @Stateful and Interfaces.

If I create a Bean with @Stateful and @Scope(ScopeType.SESSION) annotation for example I have to implement an interface to access fields and methods from my JSF page. If I create a Bean without @Stateful annotation but with @Scope(ScopeType.SESSION) I don't need an interface for access.

Now, why I should use @Stateful annotation or is ther any benefit, because I can reach goal without interfaces?


I would be grateful to hear ...

[christian.douven]

With the interface marked with "Stateful/Stateless" you make your bean a containermanaged bean and can access the containers services. Without it, it will stay a simple POJO.

So it depends on what you like your bean to be.

[hispeedsurfer]

ok christian,

thank you for help. Now it's clear.