/**
* Gets a related entity instance from an entity set identified by a key
*
* @param ResourceSet $sourceResourceSet The entity set related to the entity to be fetched.
* @param object $sourceEntity The related entity instance.
* @param ResourceSet $targetResourceSet The entity set from which entity needs to be fetched.
* @param ResourceProperty $targetProperty The metadata of the target property.
* @param KeyDescriptor $keyDescriptor The key to identify the entity to be fetched.
*
*
* @return object|null Returns entity instance if found else null
*/
public function getResourceFromRelatedResourceSet(ResourceSet $sourceResourceSet, $sourceEntity, ResourceSet $targetResourceSet, ResourceProperty $targetProperty, KeyDescriptor $keyDescriptor)
{
$entityInstance = $this->queryProvider->getResourceFromRelatedResourceSet($sourceResourceSet, $sourceEntity, $targetResourceSet, $targetProperty, $keyDescriptor);
$this->_validateEntityInstance($entityInstance, $targetResourceSet, $keyDescriptor, 'IQueryProvider::getResourceFromRelatedResourceSet');
return $entityInstance;
}
