IndexReader indexReader = tuple.v1();
IdReaderTypeCache idReaderTypeCache = tuple.v2();
if (idReaderTypeCache == null) { // might be if we don't have that doc with that type in this reader
continue;
}
int parentDocId = idReaderTypeCache.docById(parentId);
if (parentDocId != -1 && !indexReader.isDeleted(parentDocId)) {
OpenBitSet docIdSet = parentDocs().get(indexReader.getCoreCacheKey());
if (docIdSet == null) {
docIdSet = new OpenBitSet(indexReader.maxDoc());
parentDocs.put(indexReader.getCoreCacheKey(), docIdSet);