Net::DBus::Object - Implement objects to export to the bus
# Connecting an object to the bus, under a service package main; use Net::DBus; # Attach to the bus my $bus = Net::DBus->find; # Acquire a service org.demo.Hello my $service = $bus->export_service("org.demo.Hello"); # Export our object within the service my $object = Demo::HelloWorld->new($service); ....rest of program... # Define a new package for the object were going # to export package Demo::HelloWorld; # Specify the main interface provided by our object use Net::DBus::Exporter qw(org.example.demo.Greeter); # Were going to be a DBus object use base qw(Net::DBus::Object); # Export a Greeting signal taking a stringl string parameter dbus_signal("Greeting", ["string"]); # Export Hello as a method accepting a single string # parameter, and returning a single string value dbus_method("Hello", ["string"], ["string"]); sub new { my $class = shift; my $service = shift; my $self = $class->SUPER::new($service, "/org/demo/HelloWorld"); bless $self, $class; return $self; } sub Hello { my $self = shift; my $name = shift; $self->emit_signal("Greeting", "Hello $name"); return "Said hello to $name"; } # Export Goodbye as a method accepting a single string # parameter, and returning a single string, but put it # in the org.exaple.demo.Farewell interface dbus_method("Goodbye", ["string"], ["string"], "org.example.demo.Farewell"); sub Goodbye { my $self = shift; my $name = shift; $self->emit_signal("Greeting", "Goodbye $name"); return "Said goodbye to $name"; }
This the base for implementing objects which are directly exported to
the bus. The methods implemented in a subclass are mapped to methods on
the bus. By using this class, an application is directly tieing the RPC
functionality into its object model. Applications may thus prefer to use
the Net::DBus::ProxyObject class which allows the RPC
functionality to be maintained separately from the core object model, by
proxying RPC method calls.
This creates a new DBus object with an path of $path
registered within the service $service. The
$path parameter should be a string complying with the usual
DBus requirements for object paths, while the $service
parameter should be an instance of Net::DBus::Service. The latter is
typically obtained by calling the export_service method on
the Net::DBus object.
This creates a new DBus child object with an path of
$subpath relative to its parent $parentobj.
The $subpath parameter should be a string complying with
the usual DBus requirements for object paths, while the
$parentobj parameter should be an instance of
Net::DBus::BaseObject or a subclass.
Daniel P. Berrange
Copyright (C) 2005-2011 Daniel P. Berrange
Net::DBus, Net::DBus::Service, Net::DBus::BaseObject, Net::DBus::ProxyObject, Net::DBus::Exporter, Net::DBus::RemoteObject