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<?php
namespace Hexogen\KDTree;
use Hexogen\KDTree\Interfaces\NodeInterface;
use Hexogen\KDTree\Interfaces\ItemInterface;
class Node implements NodeInterface
{
/**
* @var ItemInterface
*/
private $item;
/**
* @var NodeInterface|null
*/
private $left;
/**
* @var NodeInterface|null
*/
private $right;
/**
* Node constructor.
* @param ItemInterface $item
*/
public function __construct(ItemInterface $item)
{
$this->item = $item;
$this->left = null;
$this->right = null;
}
/**
* @return ItemInterface get item from the node
*/
public function getItem() : ItemInterface
{
return $this->item;
}
/**
* @param NodeInterface $node set right node
*/
public function setRight(NodeInterface $node): void
{
$this->right = $node;
}
/**
* @param NodeInterface $node set left node
*/
public function setLeft(NodeInterface $node): void
{
$this->left = $node;
}
/**
* @return NodeInterface|null get right node
*/
public function getRight(): ?NodeInterface
{
return $this->right;
}
/**
* @return NodeInterface|null get left node
*/
public function getLeft(): ?NodeInterface
{
return $this->left;
}
}
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