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

       Yuval Kogman <nothingmuch@woobling.org>

       This software is copyright (c) 2014 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.

perl v5.34.0                                       2022-05-23                    KiokuDB::Role::ID::Content(3pm)

       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.

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

           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,
           );

       version 0.57