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Independent Singleton Node and Business Graphics

Hi all,

I am wondering why the Business Graphics are working fine.

I am binding my businees graphics to an independent Singleton Node of the ViewControllerContext. How is it possible that although it is a sinleton node it can dislay all the nodeelements in the business graphic?

Thanks a million

Bye

Jan

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1 Answer

  • Posted on Dec 03, 2004 at 12:49 PM

    That is a common misunderstanding concerning singleton and the cardinality. The cardinality describes how many elements a node may have. But the singleton describes the relation to the parent node. If a node is singleton, it exists only <b>once per parent node</b>, regardless how many elements this parent may have.

    It always shows data relatively to the lead selection element of the parent node. This has the consequence that is has to change its content every time the parent changes its lead selection. This is the reason that for singleton child nodes a supply function is recommended.

    Regards,

    Uwe

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