SEAM context questions

[jack70_chen]

To me, the extra contexts provided by seam are very useful for web application development, especially the conversation context. but I have some questions on the session context.

similar to the message list example provided by Seam, I have a paged and sortable list page. I use a session-scoped stateful bean , but the message list can be big and can use a lot of memory.

1. what's the best way to do this?
2. If i have to use session-scoped stateful seam component, since Seam hide the details (request, response, session etc) how can i remoe it from the session?


thanks
Jack

[bambata]

Its better to use the conversation-context, because then you can exactly control how long the state exists and you don´t have to remove it manually from the context. If you have a long message-list with a lot of data the session context is not appropriate. The session-context should be used only for data needed for the whole session, like user date for example.

Anyhow, you can access the session-context with:

Contexts.getSessionContext().remove(...);

import org.jboss.seam.contexts.Contexts;


hans

[jack70_chen]

thanks for the help. I know a long message list with a lot of data is not good for the session context. but the conversational context is not appropriate either. because for the list page, use can do a lot of things, like sorting, paging, and there is really no clear place to end the conversation.

[jack70_chen]

i think that's also why the message list example provided in the Seam download uses session component.