/**
* Creates new instance of QueryProcessor
*
* @param RequestDescription &$requestDescription Description of the request
* submitted by client.
* @param DataService &$dataService Reference to the data service.
*/
private function __construct(RequestDescription &$requestDescription, DataService &$dataService)
{
$this->_requestDescription = $requestDescription;
$this->_dataService = $dataService;
$requestTargetKind = $requestDescription->getTargetKind();
$isSingleResult = $requestDescription->isSingleResult();
$requestCountOption = $requestDescription->getRequestCountOption();
$this->_setQueryApplicable = $requestTargetKind == RequestTargetKind::RESOURCE && !$isSingleResult || $requestCountOption == RequestCountOption::VALUE_ONLY;
$this->_pagingApplicable = $this->_requestDescription->getTargetKind() == RequestTargetKind::RESOURCE && !$this->_requestDescription->isSingleResult() && $requestCountOption != RequestCountOption::VALUE_ONLY;
$targetResourceType = $this->_requestDescription->getTargetResourceType();
$targetResourceSetWrapper = $this->_requestDescription->getTargetResourceSetWrapper();
$this->_expandSelectApplicable = !is_null($targetResourceType) && !is_null($targetResourceSetWrapper) && $targetResourceType->getResourceTypeKind() == ResourceTypeKind::ENTITY && !$this->_requestDescription->isLinkUri();
}
