Builder Class

Class Builder is declared in class QKnxNetIpDisconnectRequestProxy.

The QKnxNetIpDisconnectRequestProxy::Builder class provides the means to read a KNXnet/IP disconnection request from the generic QKnxNetIpFrame class and to create a disconnection request frame based on the information. More...

Public Functions

QKnxNetIpFrame create() const
Builder &setChannelId(quint8 channelId)
Builder &setControlEndpoint(const QKnxNetIpHpai &hpai)

Detailed Description

A KNXnet/IP client terminates a data channel connection to a KNXnet/IP server by sending a disconnection request to the server's control endpoint. The client should try to disconnect gracefully, even under error conditions.

The server may disconnect from the client by sending a disconnection request due to internal problems or reception of invalid data packets. However, it is recommended to let the client terminate the connection.

The KNXnet/IP device receiving the disconnection request acknowledges the operation with a KNXnet/IP disconnection response frame, QKnxNetIpDisconnectResponseProxy, which signals the final termination of a communication channel.

In most programs, this class will not be used directly. Instead, the QKnxNetIpTunnel or QKnxNetIpDeviceManagement class is used to establish a functional connection to a KNXnet/IP server.

The common way to create a disconnection request is:

auto netIpFrame = QKnxNetIpDisconnectRequestProxy::builder()
    .setChannelId(200)
    .setControlEndpoint(QKnxNetIpHpaiProxy::builder()
        .setHostAddress(QHostAddress::LocalHost)
        .setPort(3671).create())
    .create();

Member Function Documentation

QKnxNetIpFrame Builder::create() const

Creates and returns a KNXnet/IP disconnection request frame.

Note: The returned frame may be invalid depending on the values used during setup.

See also isValid().

Builder &Builder::setChannelId(quint8 channelId)

Sets the ID of the communication channel between the KNXnet/IP client and server to channelId and returns a reference to the builder.

Builder &Builder::setControlEndpoint(const QKnxNetIpHpai &hpai)

Sets the control endpoint of the KNXnet/IP device sending the disconnection request to hpai and returns a reference to the builder.

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