We need this for arbitrary nodes that are entered at runtime.
---------- Original Message ----------------------------------
From: Christian Niles <[EMAIL PROTECTED]>
Date: Wed, 19 Nov 2003 15:39:12 -0500
>To risk stating the obvious, you look for the node ;) In essence, you'd
>just hand-code the XPath using the DOM4J methods such as
>Element.element(String).
>
>So, to search for the /html/head element,
>
>Document doc = new SAXReader().read("http://www.dom4j.org/";);
>Element htmlElem = doc.getRootElement();
>Element headElem = htmlElem.element("head");
>if (headElem != null) {
> // node exists
>}
>
>This is more efficient, but requires you to know the document structure
>beforehand. Use XPath to either save yourself coding when performance
>isn't an issue, or when you need to be able to search for an arbitrary
>node.
>
>christian.
>
>On Wednesday, November 19, 2003, at 12:39 AM, David Thielen wrote:
>
>>
>>
>> ----- Original Message -----
>> From: David Thielen
>> To: [EMAIL PROTECTED]
>> Sent: Sunday, November 16, 2003 2:59 PM
>> Subject: Re: [dom4j-user] [dom4j] - Does node exist
>>
>> Actually this doesn't always work either. The best I have some up with
>> is:
>>
>> node.selectNodes(text).size() > 0
>>
>> which I am assuming is not very efficient.
>>
>> Is there a better way????
>>
>> thanks - dave
>>
>>
>>
>> ----- Original Message -----
>> From: David Thielen
>> To: [EMAIL PROTECTED]
>> Sent: Sunday, November 16, 2003 1:45 PM
>> Subject: [dom4j-user] [dom4j] - Does node exist
>>
>> Hi;
>>
>> What is the most efficient way to determine if a node exists. The only
>> way I have founs so far is:
>>
>> if (node.matches(text))
>>
>> where text is the xpath to the node I am looking for and node is a
>> Node I start the search from.
>>
>> thanks - dave
>>
>
>
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