The DOMXPathExpression interface represents a parsed and resolved XPath expression.  
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#include <xercesc/dom/DOMXPathExpression.hpp>
The DOMXPathExpression interface represents a parsed and resolved XPath expression. 
- Since
- DOM Level 3 
◆ DOMXPathExpression()
  
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          | DOMXPathExpression::DOMXPathExpression | ( |  | ) |  |  | protected | 
 
 
◆ ~DOMXPathExpression()
  
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          | virtual DOMXPathExpression::~DOMXPathExpression | ( |  | ) |  |  | virtual | 
 
 
◆ evaluate()
Evaluates this XPath expression and returns a result. 
- Parameters
- 
  
    | contextNode | of type DOMNodeThe context is context node for the evaluation of this XPath expression. If the XPathEvaluator was obtained by casting the Document then this must be owned by the same document and must be aDOMDocument,DOMElement,DOMAttribute,DOMText,DOMCDATASection,DOMComment,DOMProcessingInstruction, orXPathNamespace. If the context node is aDOMTextor aDOMCDATASection, then the context is interpreted as the whole logical text node as seen by XPath, unless the node is empty in which case it may not serve as the XPath context. |  | type | If a specific type is specified, then the result will be coerced to return the specified type relying on XPath conversions and fail if the desired coercion is not possible. This must be one of the type codes of DOMXPathResult. |  | result | of type DOMXPathResult* The result specifies a specific result object which may be reused and returned by this method. If this is specified as nullor the implementation does not reuse the specified result, a new result object will be constructed and returned. |  
 
- Returns
- DOMXPathResult* The result of the evaluation of the XPath expression. 
- Exceptions
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    | <code>DOMXPathException</code> | TYPE_ERR: Raised if the result cannot be converted to return the specified type. |  | <code>DOMException</code> | WRONG_DOCUMENT_ERR: The DOMNodeis from a document that is not supported by theXPathEvaluatorthat created thisDOMXPathExpression. NOT_SUPPORTED_ERR: The DOMNode is not a type permitted as an XPath context node or the request type is not permitted by thisDOMXPathExpression. |  
 
 
 
◆ release()
  
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          | virtual void DOMXPathExpression::release | ( |  | ) |  |  | pure virtual | 
 
Called to indicate that this DOMXPathExpression is no longer in use and that the implementation may relinquish any resources associated with it. 
Access to a released object will lead to unexpected result. 
 
 
The documentation for this class was generated from the following file: