
Collection::Utl::Mirror - Mirror two collections.

use Collection::Utl::Mirror;
my $coll1 = ( new Collection::Utl::Mem:: mem => \%h1 );# fast but nonstable source ( Memcached )
my $coll2 = ( new Collection::Utl::Mem:: mem => \%h2 );# slow but stable source ( database )
my $mirror_coll1 = new Collection::Utl::Mirror:: $coll1, $coll2 ;

Mirror two collections.
Fetch keys from collection1. And then from collection2
create items
Return union of keys from collection1 and collection2


Zahatski Aliaksandr, <zag@cpan.org>

Copyright (C) 2005-2009 by Zahatski Aliaksandr
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available.