Net::DBus::Object(3pm)User Contributed Perl DocumentatioNet::DBus::Object(3pm)NAMENet::DBus::Object - Implement objects to export to the bus
SYNOPSIS
# 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 we're going
# to export
package Demo::HelloWorld;
# Specify the main interface provided by our object
use Net::DBus::Exporter qw(org.example.demo.Greeter);
# We're 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";
}
DESCRIPTION
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.
METHODS
my $object = Net::DBus::Object->new($service, $path)
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.
my $object = Net::DBus::Object->new($parentobj, $subpath)
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.
AUTHOR
Daniel P. Berrange
COPYRIGHT
Copyright (C) 2005-2011 Daniel P. Berrange
SEE ALSO
Net::DBus, Net::DBus::Service, Net::DBus::BaseObject,
Net::DBus::ProxyObject, Net::DBus::Exporter, Net::DBus::RemoteObject
perl v5.26.0 2017-07-22 Net::DBus::Object(3pm)
