<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Config\Definition\Builder;
/**
* An interface that must be implemented by nodes which can have children.
*
* @author Victor Berchet <[email protected]>
*
* @method NodeDefinition[] getChildNodeDefinitions() should be implemented since 4.1
*/
interface ParentNodeDefinitionInterface extends BuilderAwareInterface
{
/**
* Returns a builder to add children nodes.
*
* @return NodeBuilder
*/
public function children();
/**
* Appends a node definition.
*
* Usage:
*
* $node = $parentNode
* ->children()
* ->scalarNode('foo')->end()
* ->scalarNode('baz')->end()
* ->append($this->getBarNodeDefinition())
* ->end()
* ;
*
* @return $this
*/
public function append(NodeDefinition $node);
}