Urho3D::XPathQuery Class Reference

XPath query. More...

#include <Urho3D/Resource/XMLElement.h>

Collaboration diagram for Urho3D::XPathQuery:

Public Member Functions
	XPathQuery ()
	Construct empty.
	XPathQuery (const String &queryString, const String &variableString=String::EMPTY)
	Construct XPath query object with query string and variable string. The variable string format is "name1:type1,name2:type2,..." where type is one of "Bool", "Float", "String", "ResultSet".
	~XPathQuery ()
	Destruct.
void	Bind ()
	Bind query object with variable set.
bool	SetVariable (const String &name, bool value)
	Add/Set a bool variable. Return true if successful.
bool	SetVariable (const String &name, float value)
	Add/Set a float variable. Return true if successful.
bool	SetVariable (const String &name, const String &value)
	Add/Set a string variable. Return true if successful.
bool	SetVariable (const char *name, const char *value)
	Add/Set a string variable. Return true if successful.
bool	SetVariable (const String &name, const XPathResultSet &value)
	Add/Set an XPath query result set variable. Return true if successful.
bool	SetQuery (const String &queryString, const String &variableString=String::EMPTY, bool bind=true)
	Set XPath query string and variable string. The variable string format is "name1:type1,name2:type2,..." where type is one of "Bool", "Float", "String", "ResultSet".
void	Clear ()
	Clear by removing all variables and XPath query object.
bool	EvaluateToBool (XMLElement element) const
	Evaluate XPath query and expecting a boolean return value.
float	EvaluateToFloat (XMLElement element) const
	Evaluate XPath query and expecting a float return value.
String	EvaluateToString (XMLElement element) const
	Evaluate XPath query and expecting a string return value.
XPathResultSet	Evaluate (XMLElement element) const
String	GetQuery () const
	Return query string.
pugi::xpath_query *	GetXPathQuery () const
	Return pugixml xpath_query.
pugi::xpath_variable_set *	GetXPathVariableSet () const
	Return pugixml xpath_variable_set.

Private Attributes
String	queryString_
	XPath query string.
UniquePtr< pugi::xpath_query >	query_
	Pugixml xpath_query.
UniquePtr < pugi::xpath_variable_set >	variables_
	Pugixml xpath_variable_set.

Detailed Description

XPath query.

Member Function Documentation

XPathResultSet Urho3D::XPathQuery::Evaluate

(

XMLElement

element

)

const

Evaluate XPath query and expecting an XPath query result set as return value. Note: The XPathResultSet return value must be stored in a lhs variable to ensure the underlying xpath_node_set* is still valid while performing XPathResultSet::FirstResult(), XPathResultSet::operator [], and XMLElement::NextResult().

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The documentation for this class was generated from the following files:

• Source/Urho3D/Resource/XMLElement.h
• Source/Urho3D/Resource/XMLElement.cpp