/**
* Gets the ResourceAssociationSet instance for the given source
* association end.
*
* @param ResourceSet $resourceSet Resource set of the source
* association end
* @param ResourceType $resourceType Resource type of the source
* association end
* @param ResourceProperty $resourceProperty Resource property of the source
* association end
*
* @return ResourceAssociationSet
*/
public function getResourceAssociationSet(ResourceSet $sourceResourceSet, ResourceType $sourceResourceType, ResourceProperty $targetResourceProperty)
{
//e.g.
//ResourceSet => Representing 'Customers' entity set
//ResourceType => Representing'Customer' entity type
//ResourceProperty => Representing 'Orders' property
//We have created ResourceAssoicationSet while adding
//ResourceSetReference or ResourceReference
//and kept in $this->associationSets
//$metadata->addResourceSetReferenceProperty(
// $customersEntityType,
// 'Orders',
// $ordersResourceSet
// );
$targetResourceSet = $targetResourceProperty->getResourceType()->getCustomState();
if (is_null($targetResourceSet)) {
throw new InvalidOperationException('Failed to retrieve the custom state from ' . $resourceProperty->getResourceType()->getName());
}
//Customer_Orders_Orders, Order_Customer_Customers
$key = $sourceResourceType->getName() . '_' . $targetResourceProperty->getName() . '_' . $targetResourceSet->getName();
if (array_key_exists($key, $this->associationSets)) {
return $this->associationSets[$key];
}
return null;
}
