public virtual void TestDeleteDocuments()
{
Directory directory = CreateIndex();
IndexWriter writer = GetWriter(directory);
ReferenceManager<IndexSearcher> mgr = new SearcherManager(writer, true, new SearcherFactory());
IndexSearcher searcher = mgr.Acquire();
TopDocs topDocs = searcher.Search(new TermQuery(new Term("foo", "0")), 100);
Assert.AreEqual(1, topDocs.TotalHits);
TrackingIndexWriter mgrWriter = new TrackingIndexWriter(writer);
long result = mgrWriter.DeleteDocuments(new TermQuery(new Term("foo", "0")));
Assert.AreEqual(1, result);
// writer.Commit();
Assert.IsTrue(writer.HasDeletions());
mgr.MaybeRefresh();
searcher = mgr.Acquire();
topDocs = searcher.Search(new TermQuery(new Term("foo", "0")), 100);
Assert.AreEqual(0, topDocs.TotalHits);
}
public virtual void TestTryDeleteDocument()
{
Directory directory = CreateIndex();
IndexWriter writer = GetWriter(directory);
ReferenceManager<IndexSearcher> mgr = new SearcherManager(writer, true, new SearcherFactory());
TrackingIndexWriter mgrWriter = new TrackingIndexWriter(writer);
IndexSearcher searcher = mgr.Acquire();
TopDocs topDocs = searcher.Search(new TermQuery(new Term("foo", "0")), 100);
Assert.AreEqual(1, topDocs.TotalHits);
long result;
if (Random().NextBoolean())
{
IndexReader r = DirectoryReader.Open(writer, true);
result = mgrWriter.TryDeleteDocument(r, 0);
r.Dispose();
}
else
{
result = mgrWriter.TryDeleteDocument(searcher.IndexReader, 0);
}
// The tryDeleteDocument should have succeeded:
Assert.IsTrue(result != -1);
Assert.IsTrue(writer.HasDeletions());
if (Random().NextBoolean())
{
writer.Commit();
}
Assert.IsTrue(writer.HasDeletions());
mgr.MaybeRefresh();
searcher = mgr.Acquire();
topDocs = searcher.Search(new TermQuery(new Term("foo", "0")), 100);
Assert.AreEqual(0, topDocs.TotalHits);
}