John Drago > Class-DBI-Lite > Class::DBI::Lite::CacheManager::InMemory

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Class-DBI-Lite-1.034.tar.gz

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NAME ^

Class::DBI::Lite::CacheManager::InMemory - Cache in RAM.

SYNOPSIS ^

  package app::user;
  
  use strict;
  use warnings 'all';
  use base 'app::model';
  use Class::DBI::Lite::CacheManager::InMemory;
  
  __PACKAGE__->set_up_table('users');
  
  __PACKAGE__->set_cache(
    Class::DBI::Lite::CacheManager::Memcached->new(
      lifetime        => '30s',
      class           => __PACKAGE__,
      do_cache_search => 1,
    )
  );
  
  __PACKAGE__->cache->cache_searches_containing(qw(
    email
    password
  ));

Then, someplace else...

  # This will be cached...
  my ($user) = app::user->search(
    email     => 'alice@wonderland.net',
    password  => 'whiterabbit',
  );

...later - within 30 seconds...

  # This won't hit the database - the result will come from the cache instead:
  my ($user) = app::user->search(
    email     => 'alice@wonderland.net',
    password  => 'whiterabbit',
  );

A create, update or delete invalidates the cache:

  $user->delete; # Cache is emptied now.

DESCRIPTION ^

Class::DBI::Lite::CacheManager::InMemory will store the results of searches in RAM for a specific length of time. This is helpful if you find that your application's performance is suffering because of oft-repeated queries.

So, if your data requirements are such that you find objects of a specific class are getting called up frequently enough to warrant caching - you can now do that on a per-class basis.

You can even specify the kinds of search queries that should be cached.

You can specify the length of time that cached data should be available.

NOTE: More documentation and complete examples TBD.

AUTHOR ^

Copyright John Drago <jdrago_999@yahoo.com>. All rights reserved.

LICENSE ^

This software is Free software and may be used and redistributed under the same terms as perl itself.

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