From: David Kamholz <dkamholz@cpan.org>
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-Tag: v0.05005~67
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=aba1fd3305b5d22711d801f0522595dfc8aa2050;p=dbsrgits%2FDBIx-Class.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<DBIx::Class> 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<cache>. It can be set to any object that 
-implements the required C<get>, C<set>, and C<remove> 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 <dkamholz@cpan.org>
-
-=head1 LICENSE
-
-You may distribute this code under the same terms as Perl itself.
-
-=cut