Qt Remote Objects 网络 (主机/注册) 节点。 更多...
| 头： | #include <QRemoteObjectRegistryHost> |
| qmake: | QT += remoteobjects |
| 继承： | QRemoteObjectHostBase |
| QRemoteObjectRegistryHost (const QUrl & registryAddress = QUrl(), QObject * parent = nullptr) |
| virtual bool | setRegistryUrl (const QUrl & registryUrl ) override |
The QRemoteObjectRegistryHost class provides an entry point to a QtRemoteObjects network. A network can be as simple as two Nodes, or an arbitrarily complex set of processes and devices.
A QRemoteObjectRegistryHost has the same capability that a QRemoteObjectHost has (which includes everything a QRemoteObjectNode supports), and in addition is the owner of the Registry. Any QRemoteObjectHost node that connects to this Node will have all of their Source objects made available by the Registry.
Nodes only support connection to one registry ，调用 QRemoteObjectNode::setRegistryUrl when a Registry is already set is considered an error. For something like a secure and insecure network (where different Registries would be applicable), the recommendation is to create separate Nodes to connect to each, in effect creating two independent Qt Remote Objects networks.
节点可以相互直接连接使用 connectToNode ，或者它们可以使用 QRemoteObjectRegistry 以简化连接。
The QRemoteObjectRegistry is a special Replica available to every Node that connects to the Registry Url. It knows how to connect to every QRemoteObjectSource object on the network.
另请参阅 QRemoteObjectNode and QRemoteObjectHost .
Constructs a new QRemoteObjectRegistryHost Node with the given parent . RegistryHost Nodes have the same functionality as QRemoteObjectHost Nodes, except rather than being able to connect to a QRemoteObjectRegistry , the provided Host QUrl ( registryAddress ) becomes the address of the registry for other Nodes to connect to.
[override virtual]
bool
QRemoteObjectRegistryHost::
setRegistryUrl
(const
QUrl
&
registryUrl
)
重实现访问函数为特性： QRemoteObjectNode::registryUrl .
This method can be used to set the address of this Node to registryUrl (used for other Nodes to connect to this one), if the QUrl isn't set in the constructor. Since this Node becomes the Registry, calling this setter method causes this Node to use the url as the host address. All other Node's use the QRemoteObjectNode::setRegistryUrl method initiate a connection to the Registry.
返回
true
if the registry address is set, otherwise
false
.
另请参阅 QRemoteObjectRegistryHost () 和 QRemoteObjectNode::setRegistryUrl .