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<?php |
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namespace Smoren\Containers\Structs; |
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class GraphLink |
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{ |
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/** |
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* @var GraphItem left item |
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*/ |
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protected GraphItem $leftItem; |
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/** |
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* @var GraphItem right item |
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*/ |
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protected GraphItem $rightItem; |
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/** |
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* @var string link type |
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*/ |
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protected string $type; |
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/** |
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* GraphItemLink constructor. |
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* @param GraphItem $leftItem left item |
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* @param GraphItem $rightItem right item |
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* @param string $type link type |
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*/ |
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public function __construct(GraphItem $leftItem, GraphItem $rightItem, string $type) |
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{ |
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$this->leftItem = $leftItem; |
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$this->rightItem = $rightItem; |
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$this->type = $type; |
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} |
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/** |
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* Swaps left and right items |
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* @param bool $clone need clone items |
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* @return $this |
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*/ |
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public function swap(bool $clone = false): self |
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{ |
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$lhs = $clone ? clone $this->leftItem : $this->leftItem; |
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$rhs = $clone ? clone $this->rightItem : $this->rightItem; |
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$this->leftItem = $rhs; |
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$this->rightItem = $lhs; |
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return $this; |
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} |
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/** |
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* @return GraphItem |
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*/ |
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public function getLeftItem(): GraphItem |
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{ |
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return $this->leftItem; |
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} |
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/** |
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* @return GraphItem |
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*/ |
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public function getRightItem(): GraphItem |
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{ |
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return $this->rightItem; |
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} |
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/** |
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* @return string |
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*/ |
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public function getType(): string |
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{ |
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return $this->type; |
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} |
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/** |
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* Clones items |
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* @return $this |
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*/ |
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public function cloneItems(): self |
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{ |
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$this->leftItem = clone $this->leftItem; |
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$this->rightItem = clone $this->rightItem; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getId(): string |
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{ |
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return "{$this->leftItem->getId()}_{$this->rightItem->getId()}"; |
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} |
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/** |
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* Representates as array |
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* @param bool $itemIdsOnly |
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* @return array |
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*/ |
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public function toArray(bool $itemIdsOnly = false): array |
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{ |
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if($itemIdsOnly) { |
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return [$this->leftItem->getId(), $this->rightItem->getId(), $this->type]; |
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} |
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return [$this->leftItem->toArray(), $this->rightItem->toArray(), $this->type]; |
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} |
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} |
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