xercesc::DOMXPathExpression Class Reference

The DOMXPathExpression interface represents a parsed and resolved XPath expression. More...

#include <DOMXPathExpression.hpp>

Inheritance diagram for xercesc::DOMXPathExpression:

[legend]List of all members.

Public Member Functions
Destructor
virtual	~DOMXPathExpression ()
	Destructor.
Functions introduced in DOM Level 3
virtual DOMXPathResult *	evaluate (const DOMNode *contextNode, DOMXPathResult::ResultType type, DOMXPathResult *result) const =0
	Evaluates this XPath expression and returns a result.
Non-standard Extension
virtual void	release ()=0
	Called to indicate that this DOMXPathExpression is no longer in use and that the implementation may relinquish any resources associated with it.
Protected Member Functions
Hidden constructors
	DOMXPathExpression ()

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Detailed Description

The DOMXPathExpression interface represents a parsed and resolved XPath expression.

Since:

DOM Level 3

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Constructor & Destructor Documentation

xercesc::DOMXPathExpression::DOMXPathExpression (   )  [inline, protected]

virtual xercesc::DOMXPathExpression::~DOMXPathExpression (   )  [inline, virtual]

Destructor.

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Member Function Documentation

virtual DOMXPathResult* xercesc::DOMXPathExpression::evaluate (  const DOMNode *  contextNode, DOMXPathResult::ResultType  type, DOMXPathResult *  result )  const [pure virtual]

Evaluates this XPath expression and returns a result. Parameters: contextNode  of type DOMNode The 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 a DOMDocument, DOMElement, DOMAttribute, DOMText, DOMCDATASection, DOMComment, DOMProcessingInstruction, or XPathNamespace. If the context node is a DOMText or a DOMCDATASection, 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: <code>DOMXPathException</code>  TYPE_ERR: Raised if the result cannot be converted to return the specified type. <code>DOMException</code>  WRONG_DOCUMENT_ERR: The DOMNode is from a document that is not supported by the XPathEvaluator that created this DOMXPathExpression. NOT_SUPPORTED_ERR: The DOMNode is not a type permitted as an XPath context node or the request type is not permitted by this DOMXPathExpression.

virtual void xercesc::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. Implemented in XQillaExpression.

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The documentation for this class was generated from the following file:

• DOMXPathExpression.hpp

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