package Foo;

use Moose::Role;

requires 'table_name';

has 'name' => (is => 'rw');

1;

##</code><code>##

package Abc;

use Moose;

with 'Foo';

sub table_name { 'ABC_TABLE' }

1;

##</code><code>##

package NoTableName;

use Moose;

with 'Foo';

1;

##</code><code>##

use strict;
use warnings;
use Abc;

my $obj = Abc->new(name => 'Steve');
printf "My name is %s\n", $obj->name; 

##</code><code>##

C:\Users\arun>perl abc.t
My name is Steve

##</code><code>##

use strict;
use warnings;
use NoTableName;

my $obj = NoTableName->new(name => 'Bob');
printf "My name is %s\n", $obj->name; 

##</code><code>##

C:\Users\arun>perl -c notablename.t
'Foo' requires the method 'table_name' to be implemented by 'NoTableName' at C:/Perl/site/lib/Moose/Meta/Role/Application.pm line 59
	Moose::Meta::Role::Application::apply('Moose::Meta::Role::Application::ToClass=HASH(0x23ea6a4)', 'Moose::Meta::Role=HASH(0x379d674)', 'Moose::Meta::Class=HASH(0x368b944)') called at C:/Perl/site/lib/Moose/Meta/Role/Application/ToClass.pm line 18
	Moose::Meta::Role::Application::ToClass::apply('Moose::Meta::Role::Application::ToClass=HASH(0x23ea6a4)', 'Moose::Meta::Role=HASH(0x379d674)', 'Moose::Meta::Class=HASH(0x368b944)') called at C:/Perl/site/lib/Moose/Meta/Role.pm line 448
	Moose::Meta::Role::apply('Moose::Meta::Role=HASH(0x379d674)', 'Moose::Meta::Class=HASH(0x368b944)') called at C:/Perl/site/lib/Moose/Util.pm line 94
	Moose::Util::apply_all_roles('Moose::Meta::Class=HASH(0x368b944)', 'Foo') called at C:/Perl/site/lib/Moose.pm line 77
	Moose::with('NoTableName', 'Foo') called at C:/Perl/site/lib/Moose/Exporter.pm line 201
	Moose::with('Foo') called at NoTableName.pm line 5
	require NoTableName.pm called at notablename.t line 3
	main::BEGIN() called at NoTableName.pm line 0
	eval {...} called at NoTableName.pm line 0
Compilation failed in require at notablename.t line 3.
BEGIN failed--compilation aborted at notablename.t line 3.