Get and Set SessionInstance in ConversationInstance

[nimo22]

How can I retrieve or manipulate (for example) a list from a ConversationContext. The list is stored in my SessionContext.

@Name("sessionContext")
@Scope(SESSION)
public class MySession {

        
@In(required=false)
@Out (required = false)
private List<String> sessionList;
        
        
@Factory(value="thisSession")
public void init(){

}
        
}

and that:

@Name("conversationContext")
@Scope(CONVERSATION)
public class MyConversation {

        
@In(required=false)
@Out (required = false)
private List<String> sessionList;
        
public void accessSessionContext()
{

//I want access to my sessionContext

org.jboss.seam.core.contexts.sessionContext("sessionContext")

//or that?

(List<String>) Component.getInstance("sessionList")).put("hello");


}
        
}

How can I get/set the SessionInstance via my ConversationInstance?

[nimo22]

This does not work:

@Name("conversationContext")
@Scope(CONVERSATION)
public class MyConversation {

MySession mySession;
        
@In(required=false)
@Out (required = false)
private List<String> sessionList;
        
public void accessSessionContext()
{

//I want access to my sessionContext

mySession = (MySession) Contexts.getSessionContext().get("sessionContext");
mySession.sessionList.add("hello");

}

Anything is wrong..

[nimo22]

Okay...now it works!!

I can get the Session-Instance from my Conversation-Instance:

first case:

sessionContext= (MySession) Contexts.getSessionContext().get("sessionContext");
sessionContext.getSessionList();

or I can get mySessionList directly:

second case:

List<String> mySessionList = (List<String>) Component.getInstance("mySessionList", ScopeType.SESSION);

both works.

But what, when I do not provide getter/setter in my sessionContext and use the first case. How can I retrieve mySessionList via my Contexts ?

sessionContext= (MySession) Contexts.getSessionContext().get("sessionContext");
sessionContext.XXX ?

[nimo22]

What is the difference of this. I invoke both in a Conversation-Scope:

List<String> myStrings = (List<String>) Component.getInstance("mySessionList", ScopeType.SESSION);

and that:

myStrings = (List<String>)Contexts.getSessionContext().get("mySessionList");

Is the shorter one, the better one?

Another point is, when I want to put some values into myString:

List<String> myStrings = (List<String>) Component.getInstance("mySessionList", ScopeType.SESSION);
myStrings.add("hello");

then a NullPointerException occurs.

Any suggestions?