class LoaderChain in Zircon Profile 8

Loads validation metadata from multiple {@link LoaderInterface} instances.

Pass the loaders when constructing the chain. Once {@link loadClassMetadata()} is called, that method will be called on all loaders in the chain.

@author Bernhard Schussek <[e-mail]>

Hierarchy

• class \Symfony\Component\Validator\Mapping\Loader\LoaderChain implements LoaderInterface

3 files declare their use of LoaderChain

LazyLoadingMetadataFactory.php in vendor/symfony/validator/Mapping/Factory/LazyLoadingMetadataFactory.php

LoaderChainTest.php in vendor/symfony/validator/Tests/Mapping/Loader/LoaderChainTest.php

ValidatorBuilder.php in vendor/symfony/validator/ValidatorBuilder.php

File

vendor/symfony/validator/Mapping/Loader/LoaderChain.php, line 26

Namespace

Symfony\Component\Validator\Mapping\Loader

class LoaderChain implements LoaderInterface {

  /**
   * @var LoaderInterface[]
   */
  protected $loaders;

  /**
   * @param LoaderInterface[] $loaders The metadata loaders to use
   *
   * @throws MappingException If any of the loaders has an invalid type
   */
  public function __construct(array $loaders) {
    foreach ($loaders as $loader) {
      if (!$loader instanceof LoaderInterface) {
        throw new MappingException(sprintf('Class %s is expected to implement LoaderInterface', get_class($loader)));
      }
    }
    $this->loaders = $loaders;
  }

  /**
   * {@inheritdoc}
   */
  public function loadClassMetadata(ClassMetadata $metadata) {
    $success = false;
    foreach ($this->loaders as $loader) {
      $success = $loader
        ->loadClassMetadata($metadata) || $success;
    }
    return $success;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
LoaderChain::$loaders	protected	property
LoaderChain::loadClassMetadata	public	function	Loads validation metadata into a {@link ClassMetadata} instance. Overrides LoaderInterface::loadClassMetadata
LoaderChain::__construct	public	function		1