/**
* @since 2.2
*
* @param Description $description
*
* @return QuerySegment
*/
public function interpretDescription(Description $description)
{
$query = new QuerySegment();
$query->type = $description instanceof Conjunction ? QuerySegment::Q_CONJUNCTION : QuerySegment::Q_DISJUNCTION;
foreach ($description->getDescriptions() as $subDescription) {
$subQueryId = $this->querySegmentListBuilder->getQuerySegmentFrom($subDescription);
if ($subQueryId >= 0) {
$query->components[$subQueryId] = true;
}
}
// All subconditions failed, drop this as well.
if (count($query->components) == 0) {
$query->type = QuerySegment::Q_NOQUERY;
}
return $query;
}
/**
* Recursively create an Condition from an Conjunction
*
* @param Conjunction $description
* @param string $joinVariable
* @param DIProperty|null $orderByProperty
*
* @return Condition
*/
public function buildCondition(Description $description, $joinVariable, $orderByProperty = null)
{
$subDescriptions = $description->getDescriptions();
$result = $this->doPreliminarySubDescriptionCheck($subDescriptions, $joinVariable, $orderByProperty);
if ($result !== null) {
return $result;
}
$subConditionElements = $this->doResolveSubDescriptionsRecursively($subDescriptions, $joinVariable);
if ($subConditionElements instanceof FalseCondition) {
return $subConditionElements;
}
$result = $this->createConditionFromSubConditionElements($subConditionElements);
$result->weakConditions = $subConditionElements->weakConditions;
$result->orderVariables = $subConditionElements->orderVariables;
$this->compoundConditionBuilder->addOrderByDataForProperty($result, $joinVariable, $orderByProperty);
return $result;
}
/**
* @since 2.2
*
* {@inheritDoc}
*/
public function interpretDescription(Description $description)
{
$joinVariable = $this->compoundConditionBuilder->getJoinVariable();
$orderByProperty = $this->compoundConditionBuilder->getOrderByProperty();
$subDescriptions = $description->getDescriptions();
$result = $this->doPreliminarySubDescriptionCheck($subDescriptions, $joinVariable, $orderByProperty);
if ($result !== null) {
return $result;
}
$subConditionElements = $this->doResolveSubDescriptionsRecursively($subDescriptions, $joinVariable, $orderByProperty);
if ($subConditionElements instanceof TrueCondition) {
return $subConditionElements;
}
if ($subConditionElements->unionCondition === '' && $subConditionElements->filter === '') {
return new FalseCondition();
}
$result = $this->createConditionFromSubConditionElements($subConditionElements, $joinVariable);
$result->weakConditions = $subConditionElements->weakConditions;
$this->compoundConditionBuilder->addOrderByDataForProperty($result, $joinVariable, $orderByProperty);
return $result;
}
private function doMapConjunctionDisjunction(Description $description, &$exact)
{
$result = new ExpData(new ExpResource(''));
$result->addPropertyObjectValue($this->exporter->getSpecialNsResource('rdf', 'type'), new ExpData($this->exporter->getSpecialNsResource('owl', 'Class')));
$elements = array();
foreach ($description->getDescriptions() as $subdesc) {
$element = $this->getExpDataFromDescription($subdesc, $exact);
if ($element === false) {
$element = new ExpData($this->exporter->getSpecialNsResource('owl', 'Thing'));
}
$elements[] = $element;
}
$prop = $description instanceof Conjunction ? 'intersectionOf' : 'unionOf';
$result->addPropertyObjectValue($this->exporter->getSpecialNsResource('owl', $prop), ExpData::makeCollection($elements));
return $result;
}
