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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Mapping;
/**
* Specifies whether an object should be cascaded.
*
* Cascading is relevant for any node type but class nodes. If such a node
* contains an object of value, and if cascading is enabled, then the node
* traverser will try to find class metadata for that object and validate the
* object against that metadata.
*
* If no metadata is found for a cascaded object, and if that object implements
* {@link \Traversable}, the node traverser will iterate over the object and
* cascade each object or collection contained within, unless iteration is
* prohibited by the specified {@link TraversalStrategy}.
*
* Although the constants currently represent a boolean switch, they are
* implemented as bit mask in order to allow future extensions.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*
* @see TraversalStrategy
*/
class CascadingStrategy
{
/**
* Specifies that a node should not be cascaded.
*/
const NONE = 1;
/**
* Specifies that a node should be cascaded.
*/
const CASCADE = 2;
/**
* Not instantiable.
*/
private function __construct()
{
}
}
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