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<?php |
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/** |
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* Part of the Fusion.Collection package. |
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* |
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* @license MIT |
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*/ |
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declare(strict_types=1); |
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namespace Fusion\Collection; |
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use Fusion\Collection\Contracts\CollectionInterface; |
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use Fusion\Collection\Contracts\CollectionValidationInterface; |
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/** |
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* An implementation of a type-specific collection. |
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* |
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* A type-specific collection holds values internally with a numeric index. Upon construction the |
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* consumer of this class must specify the fully qualified name of a class or interface that this |
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* collection will accept. This collection will only hold values that have this type or a |
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* `CollectionException` will be thrown. |
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* |
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* Type-specific collections are traversable and can be looped or accessed directly using array |
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* index notation. |
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* |
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* @since 1.0.0 |
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*/ |
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class TypedCollection extends Collection |
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{ |
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private $acceptedType; |
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/** |
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* Creates a type-specific collection that will allow instances of the `acceptedType`. |
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* |
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* Optionally, an array of starter items of the `acceptedType` can also be provided. The |
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* constructor will throw a `CollectionException` if an empty string is provided for |
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* `acceptedType` or if any of the starter items are not an instance of the `acceptedType`. |
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* |
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* @param \Fusion\Collection\Contracts\CollectionValidationInterface $validator |
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* @param string $acceptedType The fully qualified name of instances the collection will accept. |
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* @param array $items A set of items to populate the collection with. |
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* |
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* @throws \Fusion\Collection\Exceptions\CollectionException |
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*/ |
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public function __construct(CollectionValidationInterface $validator, string $acceptedType, array $items = []) |
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{ |
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$validator->validateNonEmptyAcceptedType($acceptedType); |
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$this->acceptedType = $acceptedType; |
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parent::__construct($validator, $items); |
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} |
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/** |
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* Adds a value to the collection. |
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* |
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* This method will throw a `CollectionException` if the value is not an instance of the |
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* `acceptedType`. |
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* |
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* @param mixed $value |
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* |
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* @return \Fusion\Collection\Contracts\CollectionInterface |
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* |
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* @throws \Fusion\Collection\Exceptions\CollectionException |
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*/ |
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public function add($value): CollectionInterface |
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{ |
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$this->validator->validateValueIsAcceptedType($value, $this->acceptedType); |
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return parent::add($value); |
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} |
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/** |
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* Replaces a value in the collection at the given key. |
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* |
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* This method will throw a `CollectionException` if the value give is not an instance of the |
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* `acceptedType`. |
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* |
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* @param int $key |
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* @param mixed $value |
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* |
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* @return \Fusion\Collection\Contracts\CollectionInterface |
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* |
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* @throws \Fusion\Collection\Exceptions\CollectionException |
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*/ |
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public function replace(int $key, $value): CollectionInterface |
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{ |
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$this->validator->validateValueIsAcceptedType($value, $this->acceptedType); |
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return parent::replace($key, $value); |
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} |
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/** |
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* Sets a value at the given offset. |
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* |
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* This method will throw a `CollectionException` if the value is not an instance of the |
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* accepted type, if the offset does not exist, or if the offset is not an integer. |
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* |
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* @see \Fusion\Collection\Collection::offsetSet() |
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* @link http://php.net/manual/en/arrayaccess.offsetset.php |
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* |
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* @param mixed $offset |
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* @param mixed $value |
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* |
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* @return void |
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* |
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* @throws \Fusion\Collection\Exceptions\CollectionException |
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*/ |
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public function offsetSet($offset, $value): void |
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{ |
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$this->validator->validateValueIsAcceptedType($value, $this->acceptedType); |
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parent::offsetSet($offset, $value); |
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} |
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} |
FusionPHP /
collection
