Thanks for your reply. I guess I got it.
My understaning is that Foo->hello & hello are basically the same except the former is calling class method and passing 'Foo' to hello as the first arg, but the later is calling a subroutine and will not pass 'Foo'. How do you think?

I ask this question is because I see the following Item class generated by catalyst's create script using several _PACKAGE__->...() inside its package. I think the purpose of these class method calls is to initialize some class variables (data structures) instead of object variables for Item's parent class, which is DBIx::Class. Am I right ?
Thanks. 

package Result::Item;

use strict;
use warnings;

use base 'DBIx::Class';

__PACKAGE__->load_components( "InflateColumn::DateTime", "Core" );
__PACKAGE__->table("item");
__PACKAGE__->add_columns(
    "id",
    {
        data_type     => "INTEGER",
        default_value => undef,
        is_nullable   => 0,
        size          => undef,
    },
);
1;

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In reply to Re^2: Question about __PACKAGE__ by sman
in thread Question about __PACKAGE__ by sman

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