Mercurial > pub > Impl
view Lib/IMPL/ORM.pm @ 16:75d55f4ee263
Окончательная концепция описания схем и построения DOM документов
author | Sergey |
---|---|
date | Tue, 08 Sep 2009 17:29:07 +0400 |
parents | 03e58a454b20 |
children | 16ada169ca75 |
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package IMPL::ORM; use strict; use warnings; use base qw(IMPL::Object); use IMPL::Class::Property; use Scalar::Util qw(weaken refaddr); use IMPL::Exception; our $Depth = 1; # + 1 our $UseProxy = 1; BEGIN { private property _ObjectCache => prop_all; private property _MapInstances => prop_all; private property _WorkUnit => prop_all; public property Schema => prop_all; } sub ObjectInfoById { my ($this,$oid) = @_; return $this->_ObjectCache->{$oid}; } sub ObjectInfo { my ($this,$inst) = @_; die new IMPL::InvalidOperationException("This method can be used only for a reference") unless ref $inst; return $this->_MapInstances->{refaddr $inst}; } 1; __END__ =pod =head1 SYNOPSIS use IMPL::ORM::Sql; my $DB = new IMPL::ORM::Sql("connection string"); local $IMPL::ORM::Depth = 1; # load childs only, no more my $artist = $DB->Lookup( Artist => { name => 'Beatles' } ); my $order = new Order(); $order->AddItem($_) foreach $artist->Albums->List; $DB->Save($order); my $label = $artist->Albums->Index(0)->Label; $DB->Populate($label); #load $label =head1 DESCRIPTION =head2 MEMBERS =level 4 =back =head2 Variables =head2 INTERNALS =head3 Object Representation , . Foo entityFoo Bar entityBar Baz entityBaz - , - . Foo public virtual property Name => prop_all, {Type => String}; entityFoo string m_Name - string v_Name - . , . =head3 Object Cache , . , . ObjectInfo => { instance => weak ref _id => data source dependent id state => {persistent|null|new|deleted} work_unit => ref to the work unit where object is acting } ObjectInfoById ObjectInfo =head3 Type mapping , , . : =level 4 =item 1 , =item ( , ..) =item , , . =back =cut