public IntDocValuesAnonymousInnerClassHelper(IntFieldSource outerInstance, IntFieldSource @this, FieldCache.Ints arr, Bits valid)
: base(@this)
{
this.outerInstance = outerInstance;
this.arr = arr;
this.valid = valid;
val = new MutableValueInt();
}
public void TestSearchAfterWhenSortingByFunctionValues()
{
Directory dir = NewDirectory();
IndexWriterConfig iwc = NewIndexWriterConfig(TEST_VERSION_CURRENT, null);
iwc.SetMergePolicy(NewLogMergePolicy()); // depends on docid order
RandomIndexWriter writer = new RandomIndexWriter(Random(), dir, iwc);
Document doc = new Document();
Field field = new StringField("value", "", Field.Store.YES);
doc.Add(field);
// Save docs unsorted (decreasing value n, n-1, ...)
const int NUM_VALS = 5;
for (int val = NUM_VALS; val > 0; val--)
{
field.StringValue = Convert.ToString(val);
writer.AddDocument(doc);
}
// Open index
IndexReader reader = writer.Reader;
writer.Dispose();
IndexSearcher searcher = NewSearcher(reader);
// Get ValueSource from FieldCache
IntFieldSource src = new IntFieldSource("value");
// ...and make it a sort criterion
SortField sf = src.GetSortField(false).Rewrite(searcher);
Sort orderBy = new Sort(sf);
// Get hits sorted by our FunctionValues (ascending values)
Query q = new MatchAllDocsQuery();
TopDocs hits = searcher.Search(q, reader.MaxDoc, orderBy);
assertEquals(NUM_VALS, hits.ScoreDocs.Length);
// Verify that sorting works in general
int i = 0;
foreach (ScoreDoc hit in hits.ScoreDocs)
{
int valueFromDoc = Convert.ToInt32(reader.Document(hit.Doc).Get("value"));
assertEquals(++i, valueFromDoc);
}
// Now get hits after hit #2 using IS.searchAfter()
int afterIdx = 1;
FieldDoc afterHit = (FieldDoc)hits.ScoreDocs[afterIdx];
hits = searcher.SearchAfter(afterHit, q, reader.MaxDoc, orderBy);
// Expected # of hits: NUM_VALS - 2
assertEquals(NUM_VALS - (afterIdx + 1), hits.ScoreDocs.Length);
// Verify that hits are actually "after"
int afterValue = (int)((double?)afterHit.Fields[0]);
foreach (ScoreDoc hit in hits.ScoreDocs)
{
int val = Convert.ToInt32(reader.Document(hit.Doc).Get("value"));
assertTrue(afterValue <= val);
assertFalse(hit.Doc == afterHit.Doc);
}
reader.Dispose();
dir.Dispose();
}
public IntDocValuesAnonymousInnerClassHelper(IntFieldSource outerInstance, IntFieldSource @this, FieldCache.Ints arr, Bits valid)
: base(@this)
{
this.outerInstance = outerInstance;
this.arr = arr;
this.valid = valid;
val = new MutableValueInt();
}
