TYPO3.Flow

Consider the following use case:

<?php

class SampleController extends \TYPO3\FLOW3\MVC\Controller\ActionController
    /**
     * this magic method is automatically called prior the appropriate createAction
     */
    public function initializeCreateAction() {
        $concreteClassName = $this->dummyFindOutConcreteProductProductClassName();

        /* @var $this->arguments['product'] \TYPO3\FLOW3\MVC\Controller\Argument (just for this example, please don't use in production code */
        $this->arguments['product']->setDataType($concreteClassName);

        $this->arguments['product']->getPropertyMappingConfiguration()->setTargetType($intendedRatingClassName);
        $this->arguments['product']->getPropertyMappingConfiguration()->setTargetTypeForSubProperty('author', 'TYPO3\Party\Domain\Model\Person');
        $this->arguments['product']->getPropertyMappingConfiguration()->allowCreationForSubProperty('author');
        $this->arguments['product']->getPropertyMappingConfiguration()->allowCreationForSubProperty('author.name');

    }

    /**
     * Create a new product; expect any concrete product type.
     * @param \Acme\Northwind\Domain\Model\AbstractProduct $product So far any kind of product
     * @return void
     */
    public function createAction(\Acme\Northwind\Domain\Model\AbstractProduct $product) {
    }
}
?>

so most possible setter methods of \TYPO3\FLOW3\Property\PropertyMappingConfiguration, and hence \TYPO3\FLOW3\MVC\Controller\MvcPropertyMappingConfiguration should return $this in order to allow a fluent coding, e.g.

        $this->arguments['product']->getPropertyMappingConfiguration()
             ->setTargetType($intendedRatingClassName);
             ->setTargetTypeForSubProperty('author', 'TYPO3\Party\Domain\Model\Person');
             ->allowCreationForSubProperty('author');
             ->allowCreationForSubProperty('author.name');