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Net::DBus::ProxyObjectUser)Contributed Perl DocumenNet::DBus::ProxyObject(3pm)

NAME
       Net::DBus::ProxyObject - 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;

	 # Create our application's object instance
	 my $object = Demo::HelloWorld->new()

	 # Acquire a service 'org.demo.Hello'
	 my $service = $bus->export_service("org.demo.Hello");

	 # Finally export the object to the bus
	 my $proxy = Demo::HelloWorld::DBus->new($object);

	 ....rest of program...

	 # Define a new package for the object we're going
	 # to export
	 package Demo::HelloWorld;

	 sub new {
	     my $class = shift;
	     my $service = shift;
	     my $self = {};

	     $self->{sighandler} = undef;

	     bless $self, $class;

	     return $self;
	 }

	 sub sighandler {
	     my $self = shift;
	     my $callback = shift;

	     $self->[sighandler} = $callback;
	 }

	 sub Hello {
	   my $self = shift;
	   my $name = shift;

	   &{$self->{sighandler}}("Greeting", "Hello $name");
	   return "Said hello to $name";
	 }

	 sub Goodbye {
	   my $self = shift;
	   my $name = shift;

	   &{$self->{sighandler}}("Greeting", "Goodbye $name");
	   return "Said goodbye to $name";
	 }

	 # Define a new package for the object we're going
	 # to export
	 package Demo::HelloWorld::DBus;

	 # 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::ProxyObject);

	 # 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 $impl = shfit;
	     my $self = $class->SUPER::new($service, "/org/demo/HelloWorld", $impl);

	     bless $self, $class;

	     $self->sighandler(sub {
		 my $signame = shift;
		 my $arg = shift;
		 $self->emit_signal($signame, $arg);
	     });

	     return $self;
	 }

	 # 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");

DESCRIPTION
       This the base for creating a proxy between a bus object and an
       application's object. It allows the application's object model to
       remain separate from the RPC object model. The proxy object will
       forward method calls from the bus, to the implementation object. The
       proxy object can also register callbacks against the application
       object, which it can use to then emit signals on the bus.

METHODS
       my $object = Net::DBus::ProxyObject->new($service, $path, $impl)
	   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. The $impl parameter is the
	   application object which will implement the methods being exported
	   to the bus.

       my $object = Net::DBus::ProxyObject->new($parentobj, $subpath, $impl)
	   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. The $impl parameter is the
	   application object which will implement the methods being exported
	   to the bus.

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::ProxyObject(3pm)
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