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<?php |
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namespace Graphp\Edge; |
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use Graphp\Vertex\VertexInterface; |
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/** |
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* Class DefaultEdge |
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* |
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* @package Graphp\Edge |
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*/ |
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class DefaultEdge implements EdgeInterface |
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{ |
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/** |
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* The edge unique hash |
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* |
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* @var string |
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*/ |
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private $hash; |
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/** |
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* The edge source vertex |
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* |
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* @var VertexInterface |
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*/ |
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protected $sourceVertex; |
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/** |
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* The edge target vertex |
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* |
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* @var VertexInterface |
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*/ |
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protected $targetVertex; |
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/** |
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* Construct a new edge |
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*/ |
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public function __construct() |
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{ |
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$this->hash = uniqid('', true); |
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} |
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/** |
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* Check if two edges are equal |
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* |
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* @param EdgeInterface $other - other edge to be compared |
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*/ |
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public function equals(?EdgeInterface $other = null): bool |
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{ |
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return !is_null($other) && $this->hash == $other->getHash(); |
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} |
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/** |
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* Get the edge hash |
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* |
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* @return string |
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*/ |
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public function getHash(): string |
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{ |
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return $this->hash; |
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} |
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/** |
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* Get the edge source vertex |
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* |
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* @return VertexInterface |
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*/ |
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public function getSource(): VertexInterface |
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{ |
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return $this->sourceVertex; |
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} |
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/** |
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* Get the edge target vertex |
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* |
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* @return VertexInterface |
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*/ |
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public function getTarget(): VertexInterface |
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{ |
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return $this->targetVertex; |
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} |
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/** |
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* Set the edge source vertex |
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* |
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* @param VertexInterface $vertex - the source vertex |
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*/ |
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public function setSource(VertexInterface $vertex): void |
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{ |
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$this->sourceVertex = $vertex; |
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} |
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/** |
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* Set the edge target vertex |
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* |
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* @param VertexInterface $vertex - the target vertex |
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*/ |
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public function setTarget(VertexInterface $vertex): void |
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{ |
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$this->targetVertex = $vertex; |
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} |
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/** |
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* Get the edge string representation |
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* |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return "(" . (string) $this->sourceVertex . " : " . (string) $this->targetVertex . ")"; |
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} |
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} |
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bingo-soft /
graphp
