// test using a sparse index (with deleted docs). The DocIdSet should be not cacheable, as it uses TermDocs if the range contains 0
public void TestSparseIndex()
{
RAMDirectory dir = new RAMDirectory();
IndexWriter writer = new IndexWriter(dir, new SimpleAnalyzer(), T, IndexWriter.MaxFieldLength.LIMITED, null);
for (int d = -20; d <= 20; d++)
{
Document doc = new Document();
doc.Add(new Field("id", d.ToString(), Field.Store.NO, Field.Index.NOT_ANALYZED));
doc.Add(new Field("body", "body", Field.Store.NO, Field.Index.NOT_ANALYZED));
writer.AddDocument(doc, null);
}
writer.Optimize(null);
writer.DeleteDocuments(null, new Term("id", "0"));
writer.Close();
IndexReader reader = IndexReader.Open((Directory)dir, true, null);
IndexSearcher Search = new IndexSearcher(reader);
Assert.True(reader.HasDeletions);
ScoreDoc[] result;
Query q = new TermQuery(new Term("body", "body"));
FieldCacheRangeFilter <sbyte?> fcrf;
result = Search.Search(q, fcrf = FieldCacheRangeFilter.NewByteRange("id", -20, 20, T, T), 100, null).ScoreDocs;
Assert.False(fcrf.GetDocIdSet(reader.GetSequentialSubReaders()[0], null).IsCacheable, "DocIdSet must be not cacheable");
Assert.AreEqual(40, result.Length, "find all");
result = Search.Search(q, fcrf = FieldCacheRangeFilter.NewByteRange("id", 0, 20, T, T), 100, null).ScoreDocs;
Assert.False(fcrf.GetDocIdSet(reader.GetSequentialSubReaders()[0], null).IsCacheable, "DocIdSet must be not cacheable");
Assert.AreEqual(20, result.Length, "find all");
result = Search.Search(q, fcrf = FieldCacheRangeFilter.NewByteRange("id", -20, 0, T, T), 100, null).ScoreDocs;
Assert.False(fcrf.GetDocIdSet(reader.GetSequentialSubReaders()[0], null).IsCacheable, "DocIdSet must be not cacheable");
Assert.AreEqual(20, result.Length, "find all");
result = Search.Search(q, fcrf = FieldCacheRangeFilter.NewByteRange("id", 10, 20, T, T), 100, null).ScoreDocs;
Assert.True(fcrf.GetDocIdSet(reader.GetSequentialSubReaders()[0], null).IsCacheable, "DocIdSet must be not cacheable");
Assert.AreEqual(11, result.Length, "find all");
result = Search.Search(q, fcrf = FieldCacheRangeFilter.NewByteRange("id", -20, -10, T, T), 100, null).ScoreDocs;
Assert.True(fcrf.GetDocIdSet(reader.GetSequentialSubReaders()[0], null).IsCacheable, "DocIdSet must be not cacheable");
Assert.AreEqual(11, result.Length, "find all");
}
public virtual void TestSparseIndex()
{
Directory dir = NewDirectory();
IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)));
for (int d = -20; d <= 20; d++)
{
Document doc = new Document();
doc.Add(NewStringField("id", Convert.ToString(d, CultureInfo.InvariantCulture), Field.Store.NO));
doc.Add(NewStringField("body", "body", Field.Store.NO));
writer.AddDocument(doc);
}
writer.ForceMerge(1);
writer.DeleteDocuments(new Term("id", "0"));
writer.Dispose();
IndexReader reader = DirectoryReader.Open(dir);
IndexSearcher search = NewSearcher(reader);
Assert.IsTrue(reader.HasDeletions);
ScoreDoc[] result;
Query q = new TermQuery(new Term("body", "body"));
#pragma warning disable 612, 618
result = search.Search(q, FieldCacheRangeFilter.NewByteRange("id", (sbyte?)-20, (sbyte?)20, T, T), 100).ScoreDocs;
Assert.AreEqual(40, result.Length, "find all");
result = search.Search(q, FieldCacheRangeFilter.NewByteRange("id", (sbyte?)0, (sbyte?)20, T, T), 100).ScoreDocs;
Assert.AreEqual(20, result.Length, "find all");
result = search.Search(q, FieldCacheRangeFilter.NewByteRange("id", (sbyte?)-20, (sbyte?)0, T, T), 100).ScoreDocs;
Assert.AreEqual(20, result.Length, "find all");
result = search.Search(q, FieldCacheRangeFilter.NewByteRange("id", (sbyte?)10, (sbyte?)20, T, T), 100).ScoreDocs;
Assert.AreEqual(11, result.Length, "find all");
result = search.Search(q, FieldCacheRangeFilter.NewByteRange("id", (sbyte?)-20, (sbyte?)-10, T, T), 100).ScoreDocs;
Assert.AreEqual(11, result.Length, "find all");
#pragma warning restore 612, 618
reader.Dispose();
dir.Dispose();
}