public override DocIdSet GetDocIdSet(IndexReader reader)
{
if (chainedFilters.Count == 0)
{
throw new AssertionFailure("ChainedFilter has no filters to chain for");
}
// Create HashSet of first filter's contents
HashSet<int> result = DocIdSetToHashSet(chainedFilters[0].GetDocIdSet(reader));
// For each remaining filter, fill another HashSet and intersect it with the first.
for (int i = 1; i < chainedFilters.Count; i++)
{
var nextSet = DocIdSetToHashSet(chainedFilters[i].GetDocIdSet(reader));
result.IntersectWith(nextSet);
}
DocIdSet resultDocIds = new EnumerableBasedDocIdSet(result);
return resultDocIds;
}
public override DocIdSet GetDocIdSet(IndexReader reader)
{
if (chainedFilters.Count == 0)
{
throw new AssertionFailure("ChainedFilter has no filters to chain for");
}
// Create HashSet of first filter's contents
HashSet <int> result = DocIdSetToHashSet(chainedFilters[0].GetDocIdSet(reader));
// For each remaining filter, fill another HashSet and intersect it with the first.
for (int i = 1; i < chainedFilters.Count; i++)
{
var nextSet = DocIdSetToHashSet(chainedFilters[i].GetDocIdSet(reader));
result.IntersectWith(nextSet);
}
DocIdSet resultDocIds = new EnumerableBasedDocIdSet(result);
return(resultDocIds);
}