NAME

       KiokuDB::Role::ID::Content - Content dependent object IDs

VERSION

       version 0.56

SYNOPSIS

           package BLOB;
           use Moose;

           use Digest::SHA1;

           with qw(KiokuDB::Role::ID::Content);

           sub kiokudb_object_id {
               my $self = shift;
               sha1_hex($self->data);
           }

           has data => (
               isa => "Str",
               is  => "ro",
               required => 1,
           );

DESCRIPTION

       This is a role for KiokuDB::Role::Immutable objects whose IDs depend on their content, or
       in other words content addressable objects.

       A canonical example is a string identified by its SHA-1 hash, as is demonstrated in the
       "SYNOPSIS".

       Objects which do this role are never updated in the database just like
       KiokuDB::Role::Immutable objects.

       Additionally, it is not an error to insert such objects twice since the objects are
       assumed to be identical.

AUTHOR

       Yuval Kogman <nothingmuch@woobling.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2013 by Yuval Kogman, Infinity Interactive.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.