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   FW: Node & NodeList

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  • From: "Weiguang (Bill) Qiu" <wqiu@delanotech.com>
  • To: "'xml-dev@xml.org'" <xml-dev@xml.org>
  • Date: Fri, 16 Jun 2000 10:00:46 -0400

>  -----Original Message-----
> From: 	Weiguang (Bill) Qiu  
> Sent:	Friday, June 16, 2000 9:55 AM
> To:	'xerces-j-dev@xml.apache.org'
> Subject:	Node & NodeList
> Hi all,
> Everyone should have used org.w3c.dom.Node's method getChildNodes(), the
> return should be NodeList, right? But I found out that it is also an
> instance of Node, I know the reason, because NodeImpl implements both Node
> and NodeList interface. But it caused one problem for me, for example, I
> have a function which accepts either Node or NodeList as parameter, but if
> somebody calls getChildNodes() first, and then use the returning NodeList
> as parameter for my function, how could I know the input is Node or
> NodeList? 
> Is there anyone who has the same experience, could you let me know your
> way to differ Node and NodeList, thanks a lot.
> Looking forward to any useful answer.
> Bill

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