NAME

IOC::Container::MethodResolution - An IOC Container object which support method resolution of services

SYNOPSIS

            

              
              
use IOC::Container;
my $container = IOC::Container->new();
$container->register(IOC::Service::Literal->new('log_file' => "logfile.log"));
$container->register(IOC::Service->new('logger' => sub { 
    my $c = shift; 
    return FileLogger->new($c->log_file());
}));
$container->register(IOC::Service->new('application' => sub {
    my $c = shift; 
    my $app = Application->new();
    $app->logger($c->logger());
    return $app;
}));
$container->application()->run();     
# or a more complex example
# utilizing a tree-like structure
# of services
my $logging = IOC::Container->new('logging');
$logging->register(IOC::Service->new('logger' => sub {
    my $c = shift;
    return My::FileLogger->new($c->root()->filesystem()->filemanager()->openFile($c->log_file()));
}));
$logging->register(IOC::Service::Literal->new('log_file' => '/var/my_app.log')); 
my $database = IOC::Container->new('database');
$database->register(IOC::Service->new('connection' => sub {
    my $c = shift;
    return My::DB->connect($c->dsn(), $c->username(), $c->password());
}));
$database->register(IOC::Service::Literal->new('dsn'      => 'dbi:mysql:my_app'));
$database->register(IOC::Service::Literal->new('username' => 'test'));
$database->register(IOC::Service::Literal->new('password' => 'secret_test'));          
my $file_system = IOC::Container->new('filesystem');
$file_system->register(IOC::Service->new('filemanager' => sub { return My::FileManager->new() })); 
         
my $container = IOC::Container->new(); 
$container->addSubContainers($file_system, $database, $logging);
$container->register(IOC::Service->new('application' => sub {
    my $c = shift; 
    my $app = My::Application->new();
    $app->logger($c->root()->logging()->logger());
    $app->db_connection($c->root()->database()->connection());
    return $app;
})); 
$container->application()->run();
            
          

DESCRIPTION

In this IOC framework, the IOC::Container::MethodResolution object holds instances of keyed IOC::Service objects which can be called as methods.

            

              
              
         +----------------+
         | IOC::Container |
         +----------------+
                 |
                 ^
                 |
+----------------------------------+
| IOC::Container::MethodResolution |
+----------------------------------+
            
          

METHODS

There are no new methods for this subclass, but when a service is registered, the name of the service becomes a valid method for this particular container instance.

TO DO

Work on the documentation

BUGS

None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.

CODE COVERAGE

I use Devel::Cover to test the code coverage of my tests, see the CODE COVERAGE section of IOC for more information.

SEE ALSO

AUTHOR

stevan little, <stevan@iinteractive.com>

COPYRIGHT AND LICENSE

Copyright 2004-2007 by Infinity Interactive, Inc.

http://www.iinteractive.com

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.