Cache

Cache adds features to Doctrine Cache implementation

• Default lifetime
• Fetch with a namespace
• Save with a namespace
• Cache invalidation through namespace strategy
• CacheProvider Builder

Installation

The easiest way to install Cache is via composer.

Create the following composer.json file and run the php composer.phar install command to install it.

{
    "require": {
        "openclassrooms/cache": "*"
    }
}

<?php
require 'vendor/autoload.php';

use OpenClassrooms\Cache\Cache\Cache;

//do things

Usage

Instantiation

OC Cache needs a Doctrine CacheProvider to be instantiate.

$cacheProvider = new ArrayCache();

$cache = new Cache($cacheProvider);

A Cache builder can be used.

// Default builder, build a cache using ArrayCache Provider
$cache = new CacheBuilderImpl()->build();

// Using a CacheProvider
$cache = new CacheBuilderImpl()
    ->withCacheProvider($redisCache)
    ->build();

// Optional default lifetime
$cache = new CacheBuilderImpl()
    ->withCacheProvider($redisCache)
    ->withDefaultLifetime(300)
    ->build();

Default lifetime

$cache->setDefaultLifetime(300);
$cache->save($id, $data);

Fetch with namespace

$data = $cache->fetchWithNamespace($id, $namespaceId);

Save with namespace

// Namespace and life time can be null
$data = $cache->saveWithNamespace($id, $data, $namespaceId, $lifeTime);

Cache invalidation

$cache->invalidate($namespaceId);

CacheProvider Builder

The library provides a CacheProvider Builder

// Memcache
$cacheProvider = new CacheProviderBuilderImpl()
    ->create(CacheProviderType::MEMCACHE)
    ->withHost('127.0.0.1')
    ->withPort(11211) // Default 11211
    ->withTimeout(1) // Default 1
    ->build();

// Memcached
$cacheProvider = new CacheProviderBuilderImpl()
    ->create(CacheProviderType::MEMCACHED)
    ->withHost('127.0.0.1')
    ->withPort(11211) // Default 11211
    ->build();

// Redis
$cacheProvider = new CacheProviderBuilderImpl()
    ->create(CacheProviderType::REDIS)
    ->withHost('127.0.0.1')
    ->withPort(6379) // Default 6379
    ->withTimeout(0.0) // Default 0.0
    ->build();

// Array
$cacheProvider = new CacheProviderBuilderImpl()
    ->create(CacheProviderType::ARRAY_CACHE)
    ->build();