# XPathExpression

`

###

    #include <DbXml.hpp>

    class DbXml::XPathExpression {
    public:
    	XPathExpression ()
    	virtual ~XPathExpression ()
    	XPathExpression (const XPathExpression &)
    	XPathExpression & operator= (const XPathExpression &)
    	...
    };

# Description

An XPathExpression represents a parsed XPath expression. They are created with XmlContainer::parseXPathExpression and evaluated with XmlContainer::queryWithXPath.

Parsed XPath expressions are useful as the cost of the expression parsing and optimization can be amortized over many evaluations.

# Class

XmlContainer, XmlDocument, XmlQueryContext

# See Also

XmlContainer::close, XmlContainer::declareIndex, XmlContainer::deleteDocument, XmlContainer::getDocument, XmlContainer::getName, XmlContainer::open, XmlContainer::putDocument and XmlContainer::queryWithXPath.

XmlDocument::getAttributeValue, XmlDocument::getContent, XmlDocument::getID, XmlDocument::getName, XmlDocument::getType, XmlDocument::setContent, XmlDocument::setName, and XmlDocument::setType.

`

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