public void TestEnforceDeletions()
{
Directory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
IndexReader reader = writer.GetReader();
IndexSearcher searcher = new IndexSearcher(reader);
// add a doc, refresh the reader, and check that its there
Document doc = new Document();
doc.Add(new Field("id", "1", Field.Store.YES, Field.Index.NOT_ANALYZED));
writer.AddDocument(doc);
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
TopDocs docs = searcher.Search(new MatchAllDocsQuery(), 1);
Assert.AreEqual(1, docs.TotalHits, "Should find a hit...");
SpanFilter startFilter = new SpanQueryFilter(new SpanTermQuery(new Term("id", "1")));
// ignore deletions
CachingSpanFilter filter = new CachingSpanFilter(startFilter, CachingWrapperFilter.DeletesMode.IGNORE);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(1, docs.TotalHits, "[query + filter] Should find a hit...");
ConstantScoreQuery constantScore = new ConstantScoreQuery(filter);
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
// now delete the doc, refresh the reader, and see that it's not there
writer.DeleteDocuments(new Term("id", "1"));
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(0, docs.TotalHits, "[query + filter] Should *not* find a hit...");
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
// force cache to regenerate:
filter = new CachingSpanFilter(startFilter, CachingWrapperFilter.DeletesMode.RECACHE);
writer.AddDocument(doc);
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(1, docs.TotalHits, "[query + filter] Should find a hit...");
constantScore = new ConstantScoreQuery(filter);
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
// make sure we get a cache hit when we reopen readers
// that had no new deletions
IndexReader newReader = RefreshReader(reader);
Assert.IsTrue(reader != newReader);
reader = newReader;
searcher = new IndexSearcher(reader);
int missCount = filter.missCount;
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
Assert.AreEqual(missCount, filter.missCount);
// now delete the doc, refresh the reader, and see that it's not there
writer.DeleteDocuments(new Term("id", "1"));
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(0, docs.TotalHits, "[query + filter] Should *not* find a hit...");
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(0, docs.TotalHits, "[just filter] Should *not* find a hit...");
}
public void TestEnforceDeletions()
{
Directory dir = new MockRAMDirectory();
IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
IndexReader reader = writer.GetReader();
IndexSearcher searcher = new IndexSearcher(reader);
// add a doc, refresh the reader, and check that its there
Document doc = new Document();
doc.Add(new Field("id", "1", Field.Store.YES, Field.Index.NOT_ANALYZED));
writer.AddDocument(doc);
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
TopDocs docs = searcher.Search(new MatchAllDocsQuery(), 1);
Assert.AreEqual(1, docs.TotalHits, "Should find a hit...");
SpanFilter startFilter = new SpanQueryFilter(new SpanTermQuery(new Term("id", "1")));
// ignore deletions
CachingSpanFilter filter = new CachingSpanFilter(startFilter, CachingWrapperFilter.DeletesMode.IGNORE);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(1, docs.TotalHits, "[query + filter] Should find a hit...");
ConstantScoreQuery constantScore = new ConstantScoreQuery(filter);
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
// now delete the doc, refresh the reader, and see that it's not there
writer.DeleteDocuments(new Term("id", "1"));
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(0, docs.TotalHits, "[query + filter] Should *not* find a hit...");
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
// force cache to regenerate:
filter = new CachingSpanFilter(startFilter, CachingWrapperFilter.DeletesMode.RECACHE);
writer.AddDocument(doc);
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(1, docs.TotalHits, "[query + filter] Should find a hit...");
constantScore = new ConstantScoreQuery(filter);
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
// make sure we get a cache hit when we reopen readers
// that had no new deletions
IndexReader newReader = RefreshReader(reader);
Assert.IsTrue(reader != newReader);
reader = newReader;
searcher = new IndexSearcher(reader);
int missCount = filter.missCount;
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(1, docs.TotalHits, "[just filter] Should find a hit...");
Assert.AreEqual(missCount, filter.missCount);
// now delete the doc, refresh the reader, and see that it's not there
writer.DeleteDocuments(new Term("id", "1"));
reader = RefreshReader(reader);
searcher = new IndexSearcher(reader);
docs = searcher.Search(new MatchAllDocsQuery(), filter, 1);
Assert.AreEqual(0, docs.TotalHits, "[query + filter] Should *not* find a hit...");
docs = searcher.Search(constantScore, 1);
Assert.AreEqual(0, docs.TotalHits, "[just filter] Should *not* find a hit...");
}
