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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 4c8ae668cc8c |
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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 and how a traversable object should be traversed. * * If the node traverser traverses a node whose value is an instance of * {@link \Traversable}, and if that node is either a class node or if * cascading is enabled, then the node's traversal strategy will be checked. * Depending on the requested traversal strategy, the node traverser will * iterate over the object and cascade each object or collection returned by * the iterator. * * The traversal strategy is ignored for arrays. Arrays are always iterated. * * @author Bernhard Schussek <bschussek@gmail.com> * * @see CascadingStrategy */ class TraversalStrategy { /** * Specifies that a node's value should be iterated only if it is an * instance of {@link \Traversable}. */ const IMPLICIT = 1; /** * Specifies that a node's value should never be iterated. */ const NONE = 2; /** * Specifies that a node's value should always be iterated. If the value is * not an instance of {@link \Traversable}, an exception should be thrown. */ const TRAVERSE = 4; /** * Not instantiable. */ private function __construct() { } }