C# Class Mvp.Xml.Common.XPath.IndexingXPathNavigator

IndexingXPathNavigator enables lazy or eager indexing of any XML store (XmlDocument, XPathDocument or any other IXPathNavigable XML store) thus providing an alternative way to select nodes using XSLT key() function directly from an index table instead of searhing the XML tree. This allows drastically decrease selection time on preindexed selections.

Author: Oleg Tkachenko, http://www.xmllab.net.

Contributors: Daniel Cazzulino, blog

See "XML Indexing Part 1: XML IDs, XSLT Keys and IndexingXPathNavigator" article for more info.

Inheritance: System.Xml.XPath.XPathNavigator

显示文件 Open project: Monobjc/monobjc-tools Class Usage Examples

Public Methods

Method	Description
AddKey ( string keyName, string match, string use ) : void	Adds named key for use with key() function.
BuildIndexes ( ) : void	Builds indexes according to defined keys.
Clone ( ) : XPathNavigator	Creates new cloned version of the IndexingXPathNavigator.
Compile ( string xpath ) : XPathExpression	Compiles XPath expressions using base XPathNavigator.Compile() method and set IndexingXsltContext instance to the result of the compilation so compiled expressions support key() extension function.
GetAttribute ( string localName, string namespaceURI ) : string	See XPathNavigator.GetAttribute.
GetNamespace ( string localname ) : string	See XPathNavigator.GetNamespace.
IndexingXPathNavigator ( XPathNavigator navigator ) : System	Creates IndexingXPathNavigator over specified XPathNavigator.
IsSamePosition ( XPathNavigator other ) : bool	See XPathNavigator.IsSamePosition.
MoveTo ( XPathNavigator other ) : bool	See XPathNavigator.MoveTo.
MoveToAttribute ( string localName, string namespaceURI ) : bool	See XPathNavigator.MoveToAttribute.
MoveToFirst ( ) : bool	See XPathNavigator.MoveToFirst.
MoveToFirstAttribute ( ) : bool	See XPathNavigator.MoveToFirstAttribute.
MoveToFirstChild ( ) : bool	See XPathNavigator.MoveToFirstChild.
MoveToFirstNamespace ( XPathNamespaceScope namespaceScope ) : bool	See XPathNavigator.MoveToFirstNamespace(XPathNamespaceScope).
MoveToId ( string id ) : bool	See XPathNavigator.MoveToId.
MoveToNamespace ( string @namespace ) : bool	See XPathNavigator.MoveToNamespace.
MoveToNext ( ) : bool	See XPathNavigator.MoveToNext().
MoveToNextAttribute ( ) : bool	See XPathNavigator.MoveToNextAttribute.
MoveToNextNamespace ( XPathNamespaceScope namespaceScope ) : bool	See XPathNavigator.MoveToNextNamespace(XPathNamespaceScope).
MoveToParent ( ) : bool	See XPathNavigator.MoveToParent.
MoveToPrevious ( ) : bool	See XPathNavigator.MoveToPrevious.
MoveToRoot ( ) : void	See XPathNavigator.MoveToRoot.
Select ( string xpath ) : XPathNodeIterator	Selects a node set using the specified XPath expression.

Method Details

AddKey() public method

Adds named key for use with key() function.

public AddKey ( string keyName, string match, string use ) : void
keyName	string	The name of the key
match	string	XPath pattern, defining the nodes to which /// this key is applicable
use	string	XPath expression used to determine /// the value of the key for each matching node
return	void

BuildIndexes() public method

Builds indexes according to defined keys.

public BuildIndexes ( ) : void
return	void

Clone() public method

Creates new cloned version of the IndexingXPathNavigator.

public Clone ( ) : XPathNavigator
return	System.Xml.XPath.XPathNavigator

Compile() public method

Compiles XPath expressions using base XPathNavigator.Compile() method and set IndexingXsltContext instance to the result of the compilation so compiled expressions support key() extension function.

public Compile ( string xpath ) : XPathExpression
xpath	string	XPath expression to complile
return	System.Xml.XPath.XPathExpression

GetAttribute() public method

See XPathNavigator.GetAttribute.

public GetAttribute ( string localName, string namespaceURI ) : string
localName	string
namespaceURI	string
return	string

GetNamespace() public method

See XPathNavigator.GetNamespace.

public GetNamespace ( string localname ) : string
localname	string
return	string

IndexingXPathNavigator() public method

Creates IndexingXPathNavigator over specified XPathNavigator.

public IndexingXPathNavigator ( XPathNavigator navigator ) : System
navigator	System.Xml.XPath.XPathNavigator	Core XPathNavigator
return	System

IsSamePosition() public method

See XPathNavigator.IsSamePosition.

public IsSamePosition ( XPathNavigator other ) : bool
other	System.Xml.XPath.XPathNavigator
return	bool

MoveTo() public method

See XPathNavigator.MoveTo.

public MoveTo ( XPathNavigator other ) : bool
other	System.Xml.XPath.XPathNavigator
return	bool

MoveToAttribute() public method

See XPathNavigator.MoveToAttribute.

public MoveToAttribute ( string localName, string namespaceURI ) : bool
localName	string
namespaceURI	string
return	bool

MoveToFirst() public method

See XPathNavigator.MoveToFirst.

public MoveToFirst ( ) : bool
return	bool

MoveToFirstAttribute() public method

See XPathNavigator.MoveToFirstAttribute.

public MoveToFirstAttribute ( ) : bool
return	bool

MoveToFirstChild() public method

See XPathNavigator.MoveToFirstChild.

public MoveToFirstChild ( ) : bool
return	bool

MoveToFirstNamespace() public method

See XPathNavigator.MoveToFirstNamespace(XPathNamespaceScope).

public MoveToFirstNamespace ( XPathNamespaceScope namespaceScope ) : bool
namespaceScope	XPathNamespaceScope
return	bool

MoveToId() public method

See XPathNavigator.MoveToId.

public MoveToId ( string id ) : bool
id	string
return	bool

MoveToNamespace() public method

See XPathNavigator.MoveToNamespace.

public MoveToNamespace ( string @namespace ) : bool
@namespace	string
return	bool

MoveToNext() public method

See XPathNavigator.MoveToNext().

public MoveToNext ( ) : bool
return	bool

MoveToNextAttribute() public method

See XPathNavigator.MoveToNextAttribute.

public MoveToNextAttribute ( ) : bool
return	bool

MoveToNextNamespace() public method

See XPathNavigator.MoveToNextNamespace(XPathNamespaceScope).

public MoveToNextNamespace ( XPathNamespaceScope namespaceScope ) : bool
namespaceScope	XPathNamespaceScope
return	bool

MoveToParent() public method

See XPathNavigator.MoveToParent.

public MoveToParent ( ) : bool
return	bool

MoveToPrevious() public method

See XPathNavigator.MoveToPrevious.

public MoveToPrevious ( ) : bool
return	bool

MoveToRoot() public method

See XPathNavigator.MoveToRoot.

public MoveToRoot ( ) : void
return	void

Select() public method

Selects a node set using the specified XPath expression.

public Select ( string xpath ) : XPathNodeIterator
xpath	string	A string representing an XPath expression
return	System.Xml.XPath.XPathNodeIterator