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<?php |
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namespace GenericCollections\Abstracts; |
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use GenericCollections\Exceptions\InvalidElementTypeException; |
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use GenericCollections\Interfaces\CollectionInterface; |
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use GenericCollections\Internal\DataArray; |
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use GenericCollections\Traits\CollectionMethods; |
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/** |
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* This is a partial implementation of CollectionInterface |
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* The main Collection object extends this class but types methods |
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* |
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* Use this class to implement your own collection class. |
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* You will need to implement the getElementType method on your concrete case. |
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* |
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* @package GenericCollections\Abstracts |
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*/ |
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abstract class AbstractCollection extends DataArray implements CollectionInterface |
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{ |
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use CollectionMethods; |
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public function add($element) |
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{ |
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if ($this->optionUniqueValues() && $this->contains($element)) { |
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return false; |
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} |
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if (! $this->checkElementType($element)) { |
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throw new InvalidElementTypeException('collection', $this->getElementType(), get_class($this)); |
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} |
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$this->data[] = $element; |
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return true; |
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} |
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public function contains($element) |
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{ |
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return in_array($element, $this->data, $this->optionComparisonIsIdentical()); |
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} |
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public function remove($element) |
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{ |
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$index = array_search($element, $this->data, $this->optionComparisonIsIdentical()); |
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if (false === $index) { |
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return false; |
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} |
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unset($this->data[$index]); |
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if ($index < count($this->data)) { |
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$this->data = array_values($this->data); |
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} |
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return true; |
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} |
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public function retainAll(array $elements) |
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{ |
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$changed = false; |
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foreach ($this->data as $index => $element) { |
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if (! in_array($element, $elements, $this->optionComparisonIsIdentical())) { |
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unset($this->data[$index]); |
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$changed = true; |
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} |
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} |
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if ($changed) { |
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$this->data = array_values($this->data); |
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} |
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return $changed; |
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} |
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public function removeAll(array $elements) |
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{ |
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$changed = false; |
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foreach ($elements as $element) { |
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do { |
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$removed = $this->remove($element); |
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if ($removed) { |
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$changed = true; |
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} |
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} while ($removed); |
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} |
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return $changed; |
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} |
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public function removeIf(callable $callable) |
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{ |
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$changed = false; |
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foreach ($this->data as $element) { |
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if (true === call_user_func($callable, $element)) { |
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if ($this->remove($element)) { |
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$changed = true; |
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} |
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} |
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} |
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return $changed; |
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} |
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} |
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