Richfaces:same trees in separate windows (or tabs) being in sync?

I have a newbie question in JSF, and particular in Richfaces.

I need my JSF application to have two pages showing the same tree, meaning that:

• The two trees should be showing the same data
• If I change something in one of the trees (i.e. 开发者_StackOverflow社区open/close/add a node) the second tree should be automatically updated.

Is this possible? If yes, could you give me a brief outline?

UPDATE: Let me give some more details: two of the pages of the application will have this tree in their left pane. The first page will make the second one as a popup when a button is clicked. I want the two pages to show the same tree in sync.

Thanks!

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You can use <a4j:push> to notify your trees about any changes.

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Another option for others looking to be sure a part of their page is always up to date, check out the ajaxRendered attribute.