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Catmandu::Store::Hash - An in-memory store

Catmandu::Store::Hash(3pm) User Contributed Perl Documentation Catmandu::Store::Hash(3pm)

NAME

Catmandu::Store::Hash - An in-memory store

SYNOPSIS

   use Catmandu;
   my $store = Catmandu->store('Hash');
   my $obj1 = $store->bag->add({ name => 'Patrick' });
   printf "obj1 stored as %s\n" , $obj1->{_id};
   # Force an id in the store
   my $obj2 = $store->bag->add({ _id => 'test123' , name => 'Nicolas' });
   my $obj3 = $store->bag->get('test123');
   $store->bag->delete('test123');
   $store->bag->delete_all;
   # All bags are iterators
   $store->bag->each(sub { ... });
   $store->bag->take(10)->each(sub { ... });

DESCRIPTION

A Catmandu::Store::Hash is an in-memory Catmandu::Store backed by a hash for fast retrieval combined with a doubly linked list for fast traversal.

METHODS

new([init_data => [...] ])

Create a new Catmandu::Store::Hash. Optionally provide as init_data an array ref of data:
    my $store = Catmandu->store('Hash', init_data => [
           { _id => 1, data => foo } ,
           { _id => 2, data => bar }
    ]);
    # or in a catmandu.yml configuration file:
    ---
    store:
       hash:
         package: Hash
         options:
            init_data:
               - _id: 1
                 data: foo
               - _id: 2
                 data: bar

INHERITED METHODS

This Catmandu::Store implements:
Catmandu::Store
Catmandu::Droppable
Catmandu::Transactional
Each Catmandu::Bag in this Catmandu::Store implements:
Catmandu::Bag
Catmandu::Droppable
2017-10-01 perl v5.26.0