NAME

Zing::Store::Temp - Temp Storage

ABSTRACT

Temp Storage Abstraction

SYNOPSIS

  use Zing::Store::Temp;
  use Zing::Encoder::Dump;

  my $temp = Zing::Store::Temp->new(
    encoder => Zing::Encoder::Dump->new
  );

  # $temp->drop;

DESCRIPTION

This package provides an in-memory (only) storage adapter for use with data persistence abstractions.

INHERITS

This package inherits behaviors from:

Zing::Store::Disk

LIBRARIES

This package uses type constraints from:

Zing::Types

METHODS

This package implements the following methods:

decode

  decode(Str $data) : HashRef

The decode method decodes the JSON data provided and returns the data as a hashref.

decode example #1
  # given: synopsis

  $temp->decode('{"status"=>"ok"}');

drop

  drop(Str $key) : Int

The drop method removes (drops) the item from the datastore.

drop example #1
  # given: synopsis

  $temp->drop('zing:main:global:model:temp');

encode

  encode(HashRef $data) : Str

The encode method encodes and returns the data provided as JSON.

encode example #1
  # given: synopsis

  $temp->encode({ status => 'ok' });

keys

  keys(Str @keys) : ArrayRef[Str]

The keys method returns a list of keys under the namespace of the datastore or provided key.

keys example #1
  # given: synopsis

  my $keys = $temp->keys('zing:main:global:model:temp');
keys example #2
  # given: synopsis

  $temp->send('zing:main:global:model:temp', { status => 'ok' });

  my $keys = $temp->keys('zing:main:global:model:temp');

lpull

  lpull(Str $key) : Maybe[HashRef]

The lpull method pops data off of the top of a list in the datastore.

lpull example #1
  # given: synopsis

  $temp->lpull('zing:main:global:model:items');
lpull example #2
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });

  $temp->lpull('zing:main:global:model:items');

lpush

  lpush(Str $key, HashRef $val) : Int

The lpush method pushed data onto the top of a list in the datastore.

lpush example #1
  # given: synopsis

  $temp->lpush('zing:main:global:model:items', { status => '1' });
lpush example #2
  # given: synopsis

  $temp->lpush('zing:main:global:model:items', { status => '0' });

recv

  recv(Str $key) : Maybe[HashRef]

The recv method fetches and returns data from the datastore by its key.

recv example #1
  # given: synopsis

  $temp->recv('zing:main:global:model:temp');
recv example #2
  # given: synopsis

  $temp->send('zing:main:global:model:temp', { status => 'ok' });

  $temp->recv('zing:main:global:model:temp');

rpull

  rpull(Str $key) : Maybe[HashRef]

The rpull method pops data off of the bottom of a list in the datastore.

rpull example #1
  # given: synopsis

  $temp->rpull('zing:main:global:model:items');
rpull example #2
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 1 });
  $temp->rpush('zing:main:global:model:items', { status => 2 });

  $temp->rpull('zing:main:global:model:items');

rpush

  rpush(Str $key, HashRef $val) : Int

The rpush method pushed data onto the bottom of a list in the datastore.

rpush example #1
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });
rpush example #2
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });

send

  send(Str $key, HashRef $val) : Str

The send method commits data to the datastore with its key and returns truthy.

send example #1
  # given: synopsis

  $temp->send('zing:main:global:model:temp', { status => 'ok' });

size

  size(Str $key) : Int

The size method returns the size of a list in the datastore.

size example #1
  # given: synopsis

  my $size = $temp->size('zing:main:global:model:items');
size example #2
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });

  my $size = $temp->size('zing:main:global:model:items');

slot

  slot(Str $key, Int $pos) : Maybe[HashRef]

The slot method returns the data from a list in the datastore by its index.

slot example #1
  # given: synopsis

  my $model = $temp->slot('zing:main:global:model:items', 0);
slot example #2
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });

  my $model = $temp->slot('zing:main:global:model:items', 0);

test

  test(Str $key) : Int

The test method returns truthy if the specific key (or datastore) exists.

test example #1
  # given: synopsis

  $temp->rpush('zing:main:global:model:items', { status => 'ok' });

  $temp->test('zing:main:global:model:items');
test example #2
  # given: synopsis

  $temp->drop('zing:main:global:model:items');

  $temp->test('zing:main:global:model:items');

AUTHOR

Al Newkirk, awncorp@cpan.org

LICENSE

Copyright (C) 2011-2019, Al Newkirk, et al.

This is free software; you can redistribute it and/or modify it under the terms of the The Apache License, Version 2.0, as elucidated in the "license file".

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