TXPathUnionNode class

In unit Laz2_XPath

Represents a Union Expression node.

Declaration

pascal

TXPathUnionNode = class(TXPathBinaryNode)

Inheritance

TXPathUnionNode
TXPathBinaryNode
TXPathExprNode

Description

TXPathUnionNode is a TXPathBinaryNode descendant used to represent a Union expression in the XPath syntax. For example:

./child::*|./attribute::*

TXPathUnionNode provides a constructor used to set the operands for the Union expression. An overridden Evaluate method is provided to evaluate node sets generated for the XPath expression. It ensures that the selected node sets for each operand are in document order.

Methods

`Create`	public	Constructor for the class instance.
`Evaluate`	public	Evaluates the XPath expression.

Inherited

From TXPathBinaryNode (1)

Destroy

From TXPathExprNode (1)

EvalPredicate

An experiment, built from Lazarus main 2dfa93c66e of 10-22-2026. Not the official Lazarus documentation.