class Service |
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\class Service nepomukservice.h Nepomuk/Service
Base class for all Nepomuk services. A %Nepomuk service is intended to perform some kind of operation on the %Nepomuk data storage. This can include data gathering, data enrichment, or enhanced data query. %Nepomuk services are started and managed by the %Nepomuk server. Very much like KDED modules a %Nepomuk service has autostart and start-on-demand properties. In addition a %Nepomuk service can define an arbitrary number of dependencies which are necessary to run the service. These dependencies name other services. To create a new %Nepomuk service one derives a new class from Nepomuk.Service and exports it as a standard KDE module, i.e. plugin.
class MyService : public Nepomuk.Service { // do fancy stuff }; Export it as a %Nepomuk service plugin:
_SERVICE(MyService, "mynepomukservice") A desktop file describes the service's properties:
[Desktop Entry] Type=Service X-KDE-ServiceTypes=NepomukService X-KDE-Library=mynepomukservice X-KDE-Nepomuk-autostart=true X-KDE-Nepomuk-start-on-demand=false # Dependencies default to 'nepomukstorage' X-KDE-Nepomuk-dependencies=nepomukfoobar Name=My fancy Nepomuk Service Comment=A Nepomuk service that does fancy things The %Nepomuk server will automatically export all D-Bus interfaces defined on the service instance. Thus, the simplest way to export methods via D-Bus is by marking them with .
Author Sebastian Trueg \since 4.1 |
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Create a new Service.
parent - The parent object delayedInitialization - If true the service will not be usable until setServiceInitialized has been called. This allows to design services that need to perform long initialization tasks. |
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Returns A wrapper model which provides a connection to the %Nepomuk server. |
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A %Nepomuk service can make use of a warmup phase in which
it is not usable yet. Call this method once your service
is fully initialized.
Most services do not need to call this method. success - Set to true if initialization was successful, false otherwise. See also Service.Service |