valid() protected method

protected valid ( object $element ) : boolean
$element object
return boolean
Esempio n. 1
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 /**
  * @param \GraphAware\Common\Type\NodeInterface $node
  */
 public function add(NodeInterface $node)
 {
     if (parent::valid($node) && !$this->contains($node)) {
         $this->elements[$node->identity()] = $node;
     }
 }