QOpcUaAttributeOperand Class

OPC UA AttributeOperand 类型。 更多...

头：	#include <QOpcUaAttributeOperand>
CMake:	find_package(Qt6 REQUIRED COMPONENTS OpcUa) target_link_libraries(mytarget PRIVATE Qt6::OpcUa)
qmake:	QT += opcua

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公共函数

	QOpcUaAttributeOperand ()
	QOpcUaAttributeOperand (const QOpcUaAttributeOperand & rhs )
QString	alias () const
QOpcUa::NodeAttribute	attributeId () const
QList<QOpcUaRelativePathElement>	browsePath () const
QList<QOpcUaRelativePathElement> &	browsePathRef ()
QString	indexRange () const
QString	nodeId () const
void	setAlias (const QString & alias )
void	setAttributeId (QOpcUa::NodeAttribute attributeId )
void	setBrowsePath (const QList<QOpcUaRelativePathElement> & browsePath )
void	setIndexRange (const QString & indexRange )
void	setNodeId (const QString & nodeId )
QVariant	operator QVariant () const
QOpcUaAttributeOperand &	operator= (const QOpcUaAttributeOperand & rhs )

相关非成员

(从 6.7 起) bool	operator!= (const QOpcUaAttributeOperand & lhs , const QOpcUaAttributeOperand & rhs )
(从 6.7 起) bool	operator== (const QOpcUaAttributeOperand & lhs , const QOpcUaAttributeOperand & rhs )

详细描述

The AttributeOperand is defined in OPC UA 1.05 part 4, 7.7.4.4. It has the same purpose as QOpcUaSimpleAttributeOperand but has more configurable options.

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QOpcUaAttributeOperand:: QOpcUaAttributeOperand ()

Default constructs an attribute operand with no parameters set.

QOpcUaAttributeOperand:: QOpcUaAttributeOperand (const QOpcUaAttributeOperand & rhs )

Constructs an attribute operand from rhs .

QString QOpcUaAttributeOperand:: alias () const

Returns the alias for this QAttributeOperand.

另请参阅 setAlias ().

QOpcUa::NodeAttribute QOpcUaAttributeOperand:: attributeId () const

Returns the attribute id for an attribute of the node browsePath is pointing to.

另请参阅 setAttributeId ().

QList < QOpcUaRelativePathElement > QOpcUaAttributeOperand:: browsePath () const

Returns the browse path.

另请参阅 setBrowsePath ().

QList < QOpcUaRelativePathElement > &QOpcUaAttributeOperand:: browsePathRef ()

Returns a reference to the browse path.

另请参阅 browsePath ().

QString QOpcUaAttributeOperand:: indexRange () const

Returns the index range string.

另请参阅 setIndexRange ().

QString QOpcUaAttributeOperand:: nodeId () const

Returns the node id of the type definition node.

另请参阅 setNodeId ().

void QOpcUaAttributeOperand:: setAlias (const QString & alias )

Sets the alias to alias . This allows using this instance as operand for other operations in the filter.

另请参阅 alias ().

void QOpcUaAttributeOperand:: setAttributeId ( QOpcUa::NodeAttribute attributeId )

Sets the attribute id to attributeId .

另请参阅 attributeId ().

void QOpcUaAttributeOperand:: setBrowsePath (const QList < QOpcUaRelativePathElement > & browsePath )

Sets the relative path to a node starting from nodeId () 到 browsePath .

另请参阅 browsePath ().

void QOpcUaAttributeOperand:: setIndexRange (const QString & indexRange )

Sets the index range string used to identify a single value or subset of the attribute's value to indexRange .

另请参阅 indexRange ().

void QOpcUaAttributeOperand:: setNodeId (const QString & nodeId )

Sets the node id of the type definition node to nodeId .

另请参阅 nodeId ().

QVariant QOpcUaAttributeOperand:: operator QVariant () const

Converts this attribute operand to QVariant .

QOpcUaAttributeOperand &QOpcUaAttributeOperand:: operator= (const QOpcUaAttributeOperand & rhs )

设置值从 rhs in this attribute operand.

相关非成员

[noexcept, since 6.7] bool operator!= (const QOpcUaAttributeOperand & lhs , const QOpcUaAttributeOperand & rhs )

返回 true if lhs has a different value than rhs .

该函数在 Qt 6.7 引入。

[noexcept, since 6.7] bool operator== (const QOpcUaAttributeOperand & lhs , const QOpcUaAttributeOperand & rhs )

返回 true if lhs has the same value as rhs .

该函数在 Qt 6.7 引入。

内容

• 公共函数

• 相关非成员

• 详细描述