QOpcUaExpandedNodeId Class

The OPC UA ExpandedNodeId. 更多...

头：	#include <QOpcUaExpandedNodeId>
qmake:	QT += opcua

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公共函数

	QOpcUaExpandedNodeId (const QString & namespaceUri , const QString & nodeId , quint32 serverIndex = 0)
	QOpcUaExpandedNodeId (const QString & nodeId )
	QOpcUaExpandedNodeId (const QOpcUaExpandedNodeId & rhs )
QOpcUaExpandedNodeId &	operator= (const QOpcUaExpandedNodeId & rhs )
QString	namespaceUri () const
QString	nodeId () const
quint32	serverIndex () const
void	setNamespaceUri (const QString & namespaceUri )
void	setNodeId (const QString & nodeId )
void	setServerIndex (quint32 serverIndex )
QVariant	operator QVariant () const
bool	operator== (const QOpcUaExpandedNodeId & rhs ) const

详细描述

An expanded node id is a node id where the namespace index can be given as index or as a string URI. A list of namespaces and their indices on the server is provided by QOpcUaClient::namespaceArray ().

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QOpcUaExpandedNodeId:: QOpcUaExpandedNodeId (const QString & namespaceUri , const QString & nodeId , quint32 serverIndex = 0)

Constructs an expanded node id from namespace URI namespaceUri , node id string nodeId and server index serverIndex .

另请参阅 setServerIndex .

QOpcUaExpandedNodeId:: QOpcUaExpandedNodeId (const QString & nodeId )

Constructs an expanded node id from node id string nodeId .

QOpcUaExpandedNodeId:: QOpcUaExpandedNodeId (const QOpcUaExpandedNodeId & rhs )

Constructs an expanded node id from rhs .

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

设置值从 rhs in this expanded node id.

QString QOpcUaExpandedNodeId:: namespaceUri () const

Returns the namespace URI of the node id. If this value is specified, the namespace index in nodeId is 0 and must be ignored.

另请参阅 setNamespaceUri ().

QString QOpcUaExpandedNodeId:: nodeId () const

Returns the node id. If namespaceUri is specified, the namespace index is invalid.

另请参阅 setNodeId ().

quint32 QOpcUaExpandedNodeId:: serverIndex () const

Returns the index of the server containing the node. This index maps to an entry in the server's server table. The index of the local server is always 0 . All remote servers have indexes greater than 0 .

另请参阅 setServerIndex ().

void QOpcUaExpandedNodeId:: setNamespaceUri (const QString & namespaceUri )

Sets the namespace URI to namespaceUri .

另请参阅 namespaceUri ().

void QOpcUaExpandedNodeId:: setNodeId (const QString & nodeId )

Sets the node id to nodeId .

另请参阅 nodeId ().

void QOpcUaExpandedNodeId:: setServerIndex ( quint32 serverIndex )

Sets the server index to serverIndex . The index of the local server is always 0 . All remote servers have indexes greater than 0 .

另请参阅 serverIndex ().

QVariant QOpcUaExpandedNodeId:: operator QVariant () const

Converts this expanded node id to QVariant .

bool QOpcUaExpandedNodeId:: operator== (const QOpcUaExpandedNodeId & rhs ) const

返回 true if this expanded node id has the same value as rhs .