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<?php |
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/* |
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* This file is part of the Tidal/WampWatch package. |
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* (c) 2016 Timo Michna <timomichna/yahoo.de> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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*/ |
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namespace Tidal\WampWatch\Model\Property; |
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use InvalidArgumentException; |
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use Tidal\WampWatch\Model\Contract\Property\ObjectCollectionInterface; |
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class ObjectCollection extends Collection implements ObjectCollectionInterface |
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{ |
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private $objectConstrain; |
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/** |
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* Set a constrain on a class or interface name the collection's items must be an instance of. |
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* Paramater 1 $cls expects a fully qualified class name. |
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* |
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* @param string $cls A Fully qualified class name |
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*/ |
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public function setObjectConstrain($cls) |
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{ |
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if (!class_exists($cls) && !interface_exists($cls)) { |
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throw new InvalidArgumentException("Class or Interface '$cls' not found."); |
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} |
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$this->objectConstrain = $cls; |
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} |
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public function append($value) |
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{ |
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$this->validateObjectConstrain($value); |
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parent::append($value); |
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} |
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private function validateObjectConstrain($item) |
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{ |
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if (!isset($this->objectConstrain)) { |
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return; |
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} |
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if (!is_a($item, $this->objectConstrain)) { |
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throw new InvalidArgumentException("Item must be instance of '{$this->objectConstrain}'"); |
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} |
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} |
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public function offsetSet($index, $newValue) |
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{ |
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$this->validateObjectConstrain($newValue); |
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parent::offsetSet($index, $newValue); |
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} |
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} |
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tidal /
WampWatch
