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Re: Using Java for DOM processing

• To: Chisanga Mwelwa <sangz2000@h...>
• Subject: Re: Using Java for DOM processing
• From: Kal Ahmed <kal@t...>
• Date: Tue, 13 Apr 2004 16:09:54 +0100
• Cc: xml-dev@l...
• In-reply-to: <BAY12-F4095HfqR77bi000411ee@h...>
• References: <BAY12-F4095HfqR77bi000411ee@h...>
• User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624

Hi Chisanga,

The reason you are getting this output is that your Java code is not 
distinguishing between Text nodes and Element nodes when you process the 
content of the root node.  Your "formatted" XML includes whitespace 
(carriage returns and / or spaces and tabs) which are being noticed by 
the parser and inserted into the DOM tree. One way to solve this is to 
check the type of the Node using instanceof - see the modified snippet 
below.


>
> Java code snippet >>>
> ...
>         System.out.print( "Here is the document's root node:" );
>         System.out.println( " " + root.getNodeName() );
>
>         System.out.println( "Here are its child elements: " );
>         NodeList childNodes = root.getChildNodes();
>         Node currentNode;
> ...
>
>         for ( int i = 0; i < childNodes.getLength(); i++ ) {
>
>            currentNode = childNodes.item( i );

if (currentNode instanceof Element) {

>
>            // print node name of each child element
>            System.out.println( currentNode.getNodeName()); 

}

>
>         }
> ...

Hope this helps!

Cheers,

Kal

• References:
  • Using Java for DOM processing
    • From: "Chisanga Mwelwa" <sangz2000@h...>

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