QOpcUaExpandedNodeId Class

The OPC UA ExpandedNodeId. More...

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

Public Functions

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

Detailed Description

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().

Member Function Documentation

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.

See also 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)

Sets the values from 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.

See also setNamespaceUri().

QString QOpcUaExpandedNodeId::nodeId() const

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

See also 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.

See also setServerIndex().

void QOpcUaExpandedNodeId::setNamespaceUri(const QString &namespaceUri)

Sets the namespace URI to namespaceUri.

See also namespaceUri().

void QOpcUaExpandedNodeId::setNodeId(const QString &nodeId)

Sets the node id to nodeId.

See also 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.

See also serverIndex().

QVariant QOpcUaExpandedNodeId::operator QVariant() const

Converts this expanded node id to QVariant.

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

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

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