>From the documentation for the @Out annotation:
Specifies the scope to outject to. If no scope is explicitly specified, the
default scope depends upon whether the value is an instance of a Seam
component. If it is, the component scope is used. Otherwise, the scope of the
component with the @Out attribute is used. But if the component scope is
STATELESS, the EVENT scope is used. -
http://www.redhat.com/docs/manuals/jboss/jboss-eap-4.2/doc/seam/api/org/jboss/seam/annotations/Out.html
Here is how I understand it
If scope is explicitly specified:
| the specified scope is used
| otherwise:
| if the outjected variable is a seam component:
| The seam component's scope is used
| otherwise
| If scope of the component outjecting the variable is stateless
| event scope is used
| otherwise
| the scope of the component outjecting the variable is used
Looking at my example I would say that the List I am trying to outject is not a
seam component. (The objects contained in the list are seam components, but the
List being outjected is not). That is based on my understanding that a Seam
component is declared with the @Name annotation. Is this correct? If anyone can
confirm this or set me straight I would appreciate it.
This brings up more questions.
1. What is the difference between doing this:
@Stateless
| @Name("clientTransmittalLineItemAction")
| public class MySessionBeanImpl implements MySessionBean
| {
and this?:
@Stateful
| @Name("clientTransmittalLineItemAction")
| @Scope(ScopeType.STATELESS)
| public class MySessionBeanImpl implements MySessionBean
| {
2. Is the second option even possible?
3. T or F? if you have a stateless session bean there is not any point in using
the @Scope annotation.
4. T or F? If you have a stateful session bean you can specify any scope using
the @Scope annotation other than ScopeType.STATELESS
It seems that 90% of Seam examples in books and online all use SFSB. I am
trying to understand when and how a SLSB would be better to use than a SFSB.
Any help is appreciated.
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