| public SetMaxBufferedDocs ( int maxBufferedDocs ) : void | ||
| maxBufferedDocs | int | |
| return | void | |
public virtual void SetMaxBufferedDocs(int maxBufferedDocs)
{
EnsureOpen();
if (maxBufferedDocs != DISABLE_AUTO_FLUSH && maxBufferedDocs < 2)
throw new ArgumentException("maxBufferedDocs must at least be 2 when enabled");
if (maxBufferedDocs == DISABLE_AUTO_FLUSH && (int)GetRAMBufferSizeMB() == DISABLE_AUTO_FLUSH)
throw new ArgumentException("at least one of ramBufferSize and maxBufferedDocs must be enabled");
docWriter.MaxBufferedDocs = maxBufferedDocs;
PushMaxBufferedDocs();
if (infoStream != null)
Message("setMaxBufferedDocs " + maxBufferedDocs);
}
public void TestRollbackIntegrityWithBufferFlush()
{
Directory dir = new MockRAMDirectory();
IndexWriter w = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
for (int i = 0; i < 5; i++)
{
Document doc = new Document();
doc.Add(new Field("pk", i.ToString(), Field.Store.YES, Field.Index.ANALYZED_NO_NORMS));
w.AddDocument(doc);
}
w.Close();
// If buffer size is small enough to cause a flush, errors ensue...
w = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
w.SetMaxBufferedDocs(2);
Term pkTerm = new Term("pk", "");
for (int i = 0; i < 3; i++)
{
Document doc = new Document();
String value = i.ToString();
doc.Add(new Field("pk", value, Field.Store.YES, Field.Index.ANALYZED_NO_NORMS));
doc.Add(new Field("text", "foo", Field.Store.YES, Field.Index.ANALYZED_NO_NORMS));
w.UpdateDocument(pkTerm.CreateTerm(value), doc);
}
w.Rollback();
IndexReader r = IndexReader.Open(dir, true);
Assert.AreEqual(5, r.NumDocs(), "index should contain same number of docs post rollback");
r.Close();
dir.Close();
}
