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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Spiral\Core; |
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use Interop\Container\ContainerInterface; |
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/** |
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* Basic spiral cell. Automatically detects if "container" property are presented in class or uses |
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* global container as fallback. |
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*/ |
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abstract class Component |
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{ |
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/** |
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* Global/static mainly used to resolve singletons outside of the runtime scope. |
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* Must be used as fallback only, or not used at all. All spiral components can |
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* behave well without it. |
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* |
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* @var ContainerInterface |
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*/ |
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private static $staticContainer = null; |
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/** |
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* Get instance of container associated with given object, uses global container as fallback |
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* if not. Method generally used by traits. |
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* |
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* @return ContainerInterface|null |
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*/ |
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protected function iocContainer() |
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{ |
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if ( |
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property_exists($this, 'container') |
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&& isset($this->container) |
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&& $this->container instanceof ContainerInterface |
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) { |
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return $this->container; |
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} |
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/* |
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* Technically your code can work without ever being using fallback container, all |
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* spiral components can do that and only few traits will require few extra parameters. |
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* |
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* I'm planning one day (update: DONE) to run spiral as worker and later in async mode (few app |
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* processes in memory), memory schemas might help a lot by minimizing runtime code by using |
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* pre-calculated behaviours. |
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*/ |
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return self::$staticContainer; |
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} |
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/** |
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* Get/set instance of global/static container, due this method must be used as few times as |
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* possible both getter and setter methods joined into one. Please use this method only as |
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* fallback. |
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* |
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* @internal Do not use for business logic. |
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* |
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* @param ContainerInterface $container Can be set to null. |
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* |
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* @return ContainerInterface|null |
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*/ |
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final protected static function staticContainer(ContainerInterface $container = null) |
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{ |
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if (func_num_args() === 0) { |
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1 |
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return self::$staticContainer; |
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} |
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//Exchanging values |
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$outer = self::$staticContainer; |
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self::$staticContainer = $container; |
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//Return previous container or null |
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return $outer; |
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} |
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} |
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spiral /
common
