| XPath | 
 XPath provides access to the XPath evaluation environment and expressions. 
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| XPathEvaluationResult | 
 The XPathEvaluationResult interface represents the result of the
 evaluation of an XPath expression within the context of a particular node. 
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| XPathEvaluationResult.XPathResultType | 
 XPathResultType represents possible return types of an XPath evaluation. 
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| XPathException | 
 XPathException represents a generic XPath exception. 
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| XPathExpression | 
 XPathExpression provides access to compiled XPath expressions. 
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| XPathExpressionException | 
 XPathExpressionException represents an error in an XPath expression. 
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| XPathFactory | 
An  XPathFactory instance can be used to create
  XPath objects.  
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| XPathFactoryConfigurationException | 
 XPathFactoryConfigurationException represents
 a configuration error in a XPathFactory environment. 
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| XPathFunction | 
 XPathFunction provides access to XPath functions. 
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| XPathFunctionException | 
 XPathFunctionException represents an error with an XPath function. 
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| XPathFunctionResolver | 
 XPathFunctionResolver provides access to the set of user defined XPathFunctions. 
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| XPathVariableResolver | 
 XPathVariableResolver provides access to the set of user defined XPath variables. 
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