Beginner question - action method and parameters

[rdc2001]

Hello,
In working my way through the JBoss Seam book I was excited that I could 'pass' an object into my action method:
<h:commandButton value=Join action="#{Membership.join(member)}"/ >

However, this only appears to work if I declare a member variable in my action with create=true (action class below). This doesn't quite seem right to me. Defining a member variable defeats the purpose of passing it into the action method. Am I missing an annotation somewhere?
I am running on Tomcat - no EJBs.

Thanks,
-Ryan

@Name("Membership")
public class Membership {
  @In(create=true)
  private Member member;
  publicc String join(Member member) {
   ...
  }
}

@Name("member")
public class Member {
// to be persisted
}

[dhinojosa]

Hey Ryan, Welcome....

In the future can you use the tick marks so that the code can format better?  I should look something like this:

@Name("Membership") 
public class Membership { 
   @In(create=true) private Member member;
   public String join(Member member) { ... } 
}

@Name("member") 
public class Member { // to be persisted } 

Also, do you have other information?  Is the member coming in as null?  Is this a single page action?  Are the scopes of these objects conversations?

You also need to make sure that parameters are
1.Seam components
2.Should be available on the next request.

[dan.j.allen]

As you learn Seam, there is something very important to remember. The argument that is passed into the method is a context variable. That means, it has to be in scope when the method is invoked. If you have to use create=true, that means that member is no longer in scope when the action executes (and Seam has to go create a brand new instance). Likely you need to store member in page or conversation scope to ensure it is still around when the action is invoked.