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Defines the base class used to evaluate XPath expressions.
Source position: laz2_xpath.pas line 86
type TXPathExprNode = class |
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protected |
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function EvalPredicate(); |
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Evaluates an XPath Predicate Expression. |
public |
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function Evaluate(); virtual; abstract; |
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Specifies the method used to evaluate an XPath Predicate Expression. |
end; |
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Defines the base class used to evaluate XPath expressions. |
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TObject |
TXPathExprNode is a class used to evaluate an XPath expression. XPath expressions are evaluated relative to a context node, and the XPath environment. The XPath environment may contain variable bindings, the XPath core functions, and other functions loaded from other namespaces.
TXPathExprNode provides the abstract Evaluate method which is used to perform XPath expression evaluation. It must be re-implemented in descendent classes which provide support for specific expression types that can occur in XPath syntax.
| Version 4.0 | Generated 2025-05-03 | Home |