/**
* {@inheritDoc}
*/
public function getChildren()
{
$children = parent::getChildren();
foreach ($this->exons as $exon) {
if (!$children->contains($exon)) {
$children->add($exon);
}
}
foreach ($this->introns as $intron) {
if (!$children->contains($intron)) {
$children->add($intron);
}
}
foreach ($this->mRNAs as $mRNA) {
if (!$children->contains($mRNA)) {
$children->add($mRNA);
}
}
return $children;
}
