public TerminalPredicate GetExecutionPredicate(IQueryStore queryStore)
{
if (_predicates.Count == 1)
{
return(_predicates[0].GetExecutionPredicate(queryStore));
}
bool optimized = true;
ORPredicate orPredicate = new ORPredicate();
foreach (var predicate in _predicates)
{
TerminalPredicate execPred = predicate.GetExecutionPredicate(queryStore);
if (execPred is StorePredicate)
{
optimized = false;
break;
}
orPredicate.AddChildPredicate(execPred);
}
if (!optimized)
{
return(new StorePredicate(OrTreePredicate, queryStore));
}
return(orPredicate);
}
//Marked for refactoring
private IPredicate GetSelectAllPredicate(QueryCriteria criteria, IEnumerable <long> rowsEnumerator)
{
if (criteria.GetAllFields || criteria.Projections.Length == 0)
{
return(new FullPredicate(rowsEnumerator));
}
if (criteria.ProjectionCount > 1)
{
IPredicate predicate = new ORPredicate();
for (int i = 0; i < criteria.ProjectionCount; i++)
{
List <IIndex> list = _indexManager.GetIndexes(criteria[i].ToString());
if (list == null)
{
return(new StorePredicate(new TrueCondition(), criteria.Store));
}
predicate.AddChildPredicate(new AllPredicate(list[0]));
}
return(predicate);
}
var indexlist = _indexManager.GetIndexes(criteria[0].ToString());
if (indexlist == null)
{
return(new FullPredicate(rowsEnumerator));
}
return(new AllPredicate(indexlist[0]));
}
public override IEnumerable <KeyValuePair <AttributeValue, long> > Enumerate(QueryCriteria value)
{
var orPredicate = new ORPredicate();
foreach (var attributeValue in _anyValues)
{
orPredicate.AddChildPredicate(new RangePredicate(Source,
new SingleAttributeValue(new ArrayElement(attributeValue, 0)), IsInverse,
new SingleAttributeValue(new ArrayElement(attributeValue, int.MaxValue))
, IsInverse, IsInverse));
}
return(orPredicate.Enumerate(value));
}
