Created
July 26, 2012 16:46
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ZF2 DiC - Zend Cache Object
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composer.phar | |
vendor |
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{ | |
"minimum-stability": "dev", | |
"repositories": [ | |
{ | |
"type": "composer", | |
"url": "http://packages.zendframework.com/" | |
} | |
], | |
"require": { | |
"zendframework/zend-di": "2.0.*", | |
"zendframework/zend-cache": "2.0.*", | |
"zendframework/zend-servicemanager": "2.0.*", | |
"zendframework/zend-eventmanager": "2.0.*", | |
"zendframework/zend-config": "2.0.*" | |
} | |
} | |
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{ | |
"hash": "572a2b8fb2a55f4499722e4c1382081a", | |
"packages": [ | |
{ | |
"package": "zendframework/zend-cache", | |
"version": "2.0.0-rc1" | |
}, | |
{ | |
"package": "zendframework/zend-code", | |
"version": "2.0.0-rc1" | |
}, | |
{ | |
"package": "zendframework/zend-config", | |
"version": "2.0.0-rc1" | |
}, | |
{ | |
"package": "zendframework/zend-di", | |
"version": "2.0.0-rc1" | |
}, | |
{ | |
"package": "zendframework/zend-eventmanager", | |
"version": "2.0.0-rc1" | |
}, | |
{ | |
"package": "zendframework/zend-servicemanager", | |
"version": "2.0.0-rc1" | |
}, | |
{ | |
"package": "zendframework/zend-stdlib", | |
"version": "2.0.0-rc1" | |
} | |
], | |
"packages-dev": null, | |
"aliases": [ | |
], | |
"minimum-stability": "dev", | |
"stability-flags": [ | |
] | |
} |
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definition.class.Zend\Cache\Pattern\PatternOptions.setObject.object.type = "A" | |
definition.class.Zend\Cache\Pattern\PatternOptions.setObject.object.required = true | |
definition.class.Zend\Cache\Pattern\PatternOptions.setStorage.storage.type = "Zend\Cache\Storage\Adapter\AbstractAdapter" | |
definition.class.Zend\Cache\Pattern\PatternOptions.setStorage.storage.required = true | |
definition.class.Zend\Cache\Pattern\ObjectCache.setOptions.options.type = "Zend\Cache\Pattern\PatternOptions" | |
definition.class.Zend\Cache\Pattern\ObjectCache.setOptions.options.required = true | |
instance.alias.cache = Zend\Cache\Pattern\ObjectCache | |
instance.Zend\Cache\Pattern\PatternOptions.injections.setStorage.storage = 'Zend\Cache\Storage\Adapter\Memory' | |
instance.Zend\Cache\Pattern\PatternOptions.injections.setObject.object = 'A' | |
instance.cache.injections.setOptions.shared = 'Zend\Cache\Pattern\PatternOptions' |
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<?php | |
require_once __DIR__ . '/vendor/autoload.php'; | |
use Zend\Cache\PatternFactory; | |
class A { | |
/** | |
* @var B The B var | |
*/ | |
private $_b; | |
public function __construct(\B $b) { | |
$this->_b = $b; | |
} | |
public function intensiveTask($param1, $param2) { | |
return $param1 . " " . $this->_b->intensiveB() . " " . $param2; | |
} | |
} | |
class B { | |
private $_c; | |
public function __construct(\C $c) { | |
$this->_c = $c; | |
} | |
public function intensiveB() { | |
return $this->_c->compute(); | |
} | |
} | |
class C { | |
private $_c; | |
public function __construct() { | |
$this->_c = "Created C"; | |
} | |
public function compute() { | |
return $this->_c; | |
} | |
} | |
$c = new \C(); | |
$b = new \B($c); | |
$a = new \A($b); | |
$objectProxy = PatternFactory::factory('object', | |
array('object' => $a, 'storage' => 'memory')); | |
$computed = $objectProxy->intensiveTask("example", "complete"); | |
echo $computed . PHP_EOL; | |
// USING DI [SIMPLE 1] | |
$di = new \Zend\Di\Di(); | |
$c = $di->get("A"); | |
echo $c->intensiveTask("di", "ok") . PHP_EOL; | |
// Create this configuration | |
$c = new \C(); | |
$b = new \B($c); | |
$a = new \A($b); | |
$options = new \Zend\Cache\Pattern\PatternOptions(); | |
$options->setObject($a); | |
$storage = new \Zend\Cache\Storage\Adapter\Memory(); | |
$options->setStorage($storage); | |
$proxy = new \Zend\Cache\Pattern\ObjectCache(); | |
$proxy->setOptions($options); | |
echo $proxy->intensiveTask("A", "B") . PHP_EOL; | |
// Using Di | |
$di = new \Zend\Di\Di(); | |
$conf = new \Zend\Di\Config( | |
array( | |
'definition' => array( | |
'class' => array( | |
'Zend\Cache\Pattern\PatternOptions' => array( | |
'setObject' => array( | |
'object' => array( | |
'type' => 'A', | |
'required' => true | |
) | |
), | |
'setStorage' => array( | |
'storage' => array( | |
'type' => 'Zend\Cache\Storage\Adapter\AbstractAdapter', | |
'required' => true | |
) | |
) | |
), | |
'Zend\Cache\Pattern\ObjectCache' => array( | |
'setOptions' => array( | |
'options' => array( | |
'type' => 'Zend\Cache\Pattern\PatternOptions', | |
'required' => true | |
) | |
) | |
) | |
) | |
), | |
'instance' => array( | |
'alias' => array( | |
'cache' => 'Zend\Cache\Pattern\ObjectCache' | |
), | |
'Zend\Cache\Pattern\PatternOptions' => array( | |
'injections' => array( | |
'setStorage' => array("storage" => 'Zend\Cache\Storage\Adapter\Memory'), | |
'setObject' => array("object" => 'A') | |
) | |
), | |
'cache' => array( | |
'injections' => array( | |
'setOptions' => array('shared' => 'Zend\Cache\Pattern\PatternOptions') | |
) | |
) | |
) | |
) | |
); | |
$di->configure($conf); | |
$inj = $di->get("cache"); | |
echo $inj->intensiveTask("Di", "OKKKK") . PHP_EOL; | |
// DiC using ini files | |
$di = new \Zend\Di\Di(); | |
$ini = new \Zend\Config\Reader\Ini(); | |
$di->configure(new \Zend\Di\Config($ini->fromFile(__DIR__ . '/example.ini'))); | |
$proxy = $di->get("cache"); | |
echo $proxy->intensiveTask("Ini", "ok") . PHP_EOL; |
Thanks,
I agree with you that in Symfony it has more semantic mean at first sight. I try it out with symfony components to have a complete panorama.
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I find the idea very good, just the how to program this is way to complicated in my opinion. DIC always adds overhead for the configuration, but i don't think it should be that much overhead. Additionally array configurations of so many levels are very hard to understand, and i suppose there is little validation going on as well. For new users its very hard to understand whats going on.
In Symfony DIC this looks like this. Its roughly 20 lines of code, but it has semantic meaning. You can read and understand it without needing to know the internals very much.
With XML the definition is the following. XML is very helpful for such configuration, because it can add semantic meaning and grouping. This is rather bad in INI: