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<?php
namespace Saxulum\ElasticSearchQueryBuilder\Node;
class ObjectNode extends AbstractParentNode
{
/**
* @param string $name
* @param AbstractNode $node
*
* @return $this
*/
public function add($name, AbstractNode $node)
if (isset($this->children[$name])) {
throw new \InvalidArgumentException(sprintf('There is already a node with name %s!', $name));
}
$node->setParent($this);
$this->children[$name] = $node;
return $this;
* @return array
public function getAddDefault()
return new \stdClass();
* @return \stdClass|null
public function serialize()
$serialized = new \stdClass();
foreach ($this->children as $name => $child) {
if (null !== $serializedChild = $child->serialize()) {
$serialized->$name = $serializedChild;
} elseif ($child->allowAddDefault()) {
$serialized->$name = $child->getAddDefault();
if ([] === (array) $serialized) {
return;
return $serialized;