Namespaces on sillysky.net

CWellKnownNID

Tue, 14 Oct 2025 00:00:00 +0000

Some namespaces are used by the kernel or supplied plugins. The definition of the namespace IDs and their names is done in this class.

ID	Function
SYSTEM	The most important namespace, always present
TRANSPORT	Namespace for network functions, always present when the network plugin is loaded
TCP	Namespace for the transport layer, always present when the TCP plugin is loaded
TEST	Namespace for TESTS, always present when the test plugin was loaded
REMOTE_SKIN	Namespace for the RemoteSkin UI

INamespace

Tue, 14 Oct 2025 00:00:00 +0000

A namespace provides a working environment for a plug-in, application, or microservice. It provides threads, registers targets, and has a local nano service registry. It encapsulates this environment from other namespaces so that, for example, hundreds of instances of the same application can operate simultaneously in the same node.

A number of namespaces are always registered in a node. However, the initialization of all packages is asynchronous. So it can happen that the own package is initialized, but the namespace is not available yet. So it is advisable to add needed namespaces to the dependencies of your own service starter. This ensures that the required namespaces are available when the own package is initialized.

INamespaceFactory

Tue, 14 Oct 2025 00:00:00 +0000

Namespace creation is a complex process. Therefore, a factory is used for this purpose, the namespace factory. This factory is registered as a service in the service registry.

Get the factory

The factory is fetched as a singleton from the service registry:

final INamespaceFactory nf = CServiceRegistry.getInstance()
                                             .getService(INamespaceFactory.class);

As always, make sure that the service starter of your package has a dependency on the INamespaceFactory to ensure that the factory already exists.

The creation of namespaces

To create a namespace, we need a namespace ID that has not yet been assigned and a short description of the new namespace.