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Re: How to get Node value In a DOM Tree

• To: Chris Burdess <dog@b...>
• Subject: Re: How to get Node value In a DOM Tree
• From: Seetha Rama Krishna <ram_kurra@y...>
• Date: Wed, 31 May 2006 15:29:02 +0100 (BST)
• Cc: xml-dev@l...
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• In-reply-to: <3400AC2C-18A7-42DA-A7B9-39D287F830B9@b...>

Seetha Rama Krishna wrote:
> I am trying to create a DOM Tree. I had create Node's for the DOM
> Tree. I want to know how to set the Values to these Nodes.
>
> Element root = null;
> DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
> DocumentBuilder builder = factory.newDocumentBuilder();
> Document document = builder.newDocument();
> root = document.createElement(Root_Element);
> document.appendChild(root);
> Element applicationElement =document.createElement
> (Application_Element);
> applicationElement.setNodeValue("krish");
> root.appendChild(applicationElement);
>
>
> Now when I try to get the This Node Value , I am getting null
> Pointer Exception.
> Here is my code of retrieving the node value
>
> NodeList applicationNodeList = null;
> applicationNodeList =finalElement.getElementsByTagName
> ("application");
> System.out.println("applicationNodeList
> size"+applicationNodeList.getLength());
>
> for(int i = 0; i<= applicationNodeList.getLength();i++)
> {
> System.out.println("eachApplicaiton in the
> DOM"+applicationNodeList.item(i).getNodeValue());
>
> }
>
>
> I am getting NodeList size is 1 , but I the node Value I am getting
> as Null.

http://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-1950641247

"In cases where there is no obvious mapping of these attributes for a
specific nodeType (e.g., nodeValue for an Element or attributes for a
Comment), this returns null."

Probably you want a Text node. Read the DOM specification.
--
犬 Chris Burdess
"They that can give up essential liberty to obtain a little safety
deserve neither liberty nor safety." - Benjamin Franklin

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