* * 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; /** * This class builds merge conditions. * * @author Johannes M. Schmitt */ class MergeBuilder { protected $node; public $allowFalse = false; public $allowOverwrite = true; /** * Constructor * * @param NodeDefinition $node The related node */ public function __construct(NodeDefinition $node) { $this->node = $node; } /** * Sets whether the node can be unset. * * @param Boolean $allow * * @return MergeBuilder */ public function allowUnset($allow = true) { $this->allowFalse = $allow; return $this; } /** * Sets whether the node can be overwritten. * * @param Boolean $deny Whether the overwriting is forbidden or not * * @return MergeBuilder */ public function denyOverwrite($deny = true) { $this->allowOverwrite = !$deny; return $this; } /** * Returns the related node. * * @return NodeDefinition */ public function end() { return $this->node; } }