/**
* Gets reference to the ResourceType instance targetted by
* the resource path, ResourceType will present in the
* following cases:
* if the last segement descriptor describes
* (a) resource set
* http://server/NW.svc/Customers
* http://server/NW.svc/Customers('ALFKI')
* http://server/NW.svc/Customers('ALFKI')/Orders
* http://server/NW.svc/Customers('ALFKI')/Orders(123)
* http://server/NW.svc/Customers('ALFKI')/$links/Orders
* (b) resource set reference
* http://server/NW.svc/Orders(123)/Customer
* http://server/NW.svc/Orders(123)/$links/Customer
* (c) $count
* http://server/NW.svc/Customers/$count
* (d) Primitive
* http://server/NW.svc/Customers('ALFKI')/Country
* (e) $value on primitive type
* http://server/NW.svc/Customers('ALFKI')/Country/$value
* (f) Complex
* http://server/NW.svc/Customers('ALFKI')/Address
* (g) Bag
* http://server/NW.svc/Employees(123)/Emails
* (h) MLE
* http://server/NW.svc/Employees(123)/$value
* (i) Named Stream
* http://server/NW.svc/Employees(123)/Thumnail48_48
* ResourceType will be absent (NULL) in the following cases:
* if the last segment descriptor describes
* (a) metadata
* http://server/NW.svc/$metadata
* (b) service directory
* http://server/NW.svc
* (c) $bath
* http://server/NW.svc/$batch
*
* @return ResourceType/NULL
*/
public function getTargetResourceType()
{
return $this->_lastSegmentDescriptor->getTargetResourceType();
}
