public function getValue($key)
{
if ($this->storage !== null) {
$this->storage->lock();
}
$root = $this->firstNode();
if ($root === null) {
return null;
}
$node = $this->search($root, $key);
if ($node->valueType === 1) {
$value = new Nodes();
if ($this->storage !== null) {
$value->setStorage($this->storage);
$value->setHeadNodePointer($node->pointer);
} else {
$value->firstNode = $node->subNode;
}
} else {
$value = $node->value;
}
if ($this->storage !== null) {
$this->storage->unlock();
}
return $value;
}
