From: David Kamholz Date: Tue, 31 Jan 2006 23:35:26 +0000 (+0000) Subject: remove ObjectCache, does not work anymore, so doesn't belong in 0.05 release X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=aba1fd3305b5d22711d801f0522595dfc8aa2050;p=dbsrgits%2FDBIx-Class-Historic.git remove ObjectCache, does not work anymore, so doesn't belong in 0.05 release --- diff --git a/lib/DBIx/Class/ObjectCache.pm b/lib/DBIx/Class/ObjectCache.pm deleted file mode 100644 index 3dd8ec0..0000000 --- a/lib/DBIx/Class/ObjectCache.pm +++ /dev/null @@ -1,108 +0,0 @@ -package DBIx::Class::ObjectCache; - -use strict; -use warnings; - -use base qw/DBIx::Class/; - -__PACKAGE__->mk_classdata('cache'); - -=head1 NAME - - DBIx::Class::ObjectCache - Cache rows by primary key (EXPERIMENTAL) - -=head1 SYNOPSIS - - # in your class definition - use Cache::FastMmap; - __PACKAGE__->cache(Cache::FastMmap->new); - -=head1 DESCRIPTION - -This class implements a simple object cache. It should be loaded before most (all?) other -L components. Note that, in its current state, this code is rather experimental. -The only time the cache is made use of is on calls to $obj->find. This can still result in a -significant savings, but more intelligent caching, e.g. of the resultset of a has_many call, -is currently not possible. It is not difficult, however, to implement additional caching -on top of this module. - -The cache is stored in a package variable called C. It can be set to any object that -implements the required C, C, and C methods. - -=cut - -sub insert { - my $self = shift; - $self->next::method(@_); - $self->_insert_into_cache if $self->cache; - return $self; -} - -sub find { - my ($self,@vals) = @_; - return $self->next::method(@vals) unless $self->cache; - - # this is a terrible hack here. I know it can be improved. - # but, it's a start anyway. probably find in PK.pm needs to - # call a hook, or some such thing. -Dave/ningu - my ($object,$key); - my @pk = $self->primary_columns; - if (ref $vals[0] eq 'HASH') { - my $cond = $vals[0]->{'-and'}; - $key = $self->_create_ID(%{$cond->[0]}) if ref $cond eq 'ARRAY'; - } elsif (@pk == @vals) { - my %data; - @data{@pk} = @vals; - $key = $self->_create_ID(%data); - } else { - $key = $self->_create_ID(@vals); - } - if ($key and $object = $self->cache->get($key)) { - #warn "retrieving cached item $key"; - return $object; - } - - $object = $self->next::method(@vals); - $object->_insert_into_cache if $object; - return $object; -} - -sub update { - my $self = shift; - my $new = $self->next::method(@_); - $self->_insert_into_cache if $self->cache; - return; -} - -sub delete { - my $self = shift; - $self->cache->remove($self->ID) if $self->cache; - return $self->next::method(@_); -} - -sub _row_to_object { - my $self = shift; - my $new = $self->next::method(@_); - $new->_insert_into_cache if $self->cache; - return $new; -} - -sub _insert_into_cache { - my ($self) = @_; - if (my $key = $self->ID) { - my $object = bless { %$self }, ref $self; - $self->cache->set($key,$object); - } -} - -1; - -=head1 AUTHORS - -David Kamholz - -=head1 LICENSE - -You may distribute this code under the same terms as Perl itself. - -=cut