problem with deleting document

[Landrix SE - Sven Harazim]

Hello,

i'm using the current SVN-Version of Lucene.net.

First, i create an index with some documents (3 items).
See CODE 1 below.


I delete one document with indexreader. Luke Index Viewer show this correct.
See CODE 2 below

I update one document
See Code 3 below


Then, the index contains only this one document. All other documents were 
deleted.

What's happen?

CODE 1
#########################################################
Lucene.Net.Store.Directory IndexDirectory;
Lucene.Net.Analysis.Analyzer Analyzer;
Lucene.Net.Index.IndexWriter IndexWriter;
IndexDirectory = Lucene.Net.Store.FSDirectory.GetDirectory(@"D:\INDEX", true);
Analyzer = new Lucene.Net.Analysis.DE.GermanStandardAnalyzer(); //0
IndexWriter = new Lucene.Net.Index.IndexWriter(IndexDirectory, false, 
Analyzer); //AutoCommit nur bei Close
Lucene.Net.Documents.Document aDoc = new Lucene.Net.Documents.Document();
Lucene.Net.Documents.Field fld = new Lucene.Net.Documents.Field("id", 
"A2008-0005", Lucene.Net.Documents.Field.Store.YES, 
Lucene.Net.Documents.Field.Index.UN_TOKENIZED, 
Lucene.Net.Documents.Field.TermVector.NO);
aDoc.Add(fld);
IndexWriter.AddDocument(aDoc);
aDoc = new Lucene.Net.Documents.Document();
fld = new Lucene.Net.Documents.Field("id", "A2008-0006", 
Lucene.Net.Documents.Field.Store.YES, 
Lucene.Net.Documents.Field.Index.UN_TOKENIZED, 
Lucene.Net.Documents.Field.TermVector.NO);
aDoc.Add(fld);
IndexWriter.AddDocument(aDoc);
aDoc = new Lucene.Net.Documents.Document();
fld = new Lucene.Net.Documents.Field("id", "A2008-0007", 
Lucene.Net.Documents.Field.Store.YES, 
Lucene.Net.Documents.Field.Index.UN_TOKENIZED, 
Lucene.Net.Documents.Field.TermVector.NO);
aDoc.Add(fld);
IndexWriter.AddDocument(aDoc);
IndexWriter.Optimize();
IndexWriter.Close();


CODE 2
############################################################
Lucene.Net.Index.Term deleteTerm = new Lucene.Net.Index.Term("id","A2008-0006");
Lucene.Net.Store.Directory directory = 
Lucene.Net.Store.FSDirectory.GetDirectory(@"D:\INDEX", false);
Lucene.Net.Index.IndexReader reader = 
Lucene.Net.Index.IndexReader.Open(directory);
reader.DeleteDocuments(deleteTerm);
reader.Close();
directory.Close();


CODE 3
##########################################################
Lucene.Net.Store.Directory IndexDirectory;
Lucene.Net.Analysis.Analyzer Analyzer;
Lucene.Net.Index.IndexWriter IndexWriter;
Lucene.Net.Index.Term aUpdateTerm = new Lucene.Net.Index.Term("id", 
"A2008-0005");
Lucene.Net.Documents.Document aDoc = new Lucene.Net.Documents.Document();
Lucene.Net.Documents.Field fld = new Lucene.Net.Documents.Field("id", 
"A2008-0005", Lucene.Net.Documents.Field.Store.YES, 
Lucene.Net.Documents.Field.Index.UN_TOKENIZED, 
Lucene.Net.Documents.Field.TermVector.NO);
aDoc.Add(fld);
IndexDirectory = Lucene.Net.Store.FSDirectory.GetDirectory(@"D:\INDEX", true);
Analyzer = new Lucene.Net.Analysis.DE.GermanStandardAnalyzer();
IndexWriter = new Lucene.Net.Index.IndexWriter(IndexDirectory,false, Analyzer); 
//AutoCommit nur bei Close
IndexWriter.UpdateDocument(aUpdateTerm,aDoc);
IndexWriter.Optimize();
IndexWriter.Close();


Thanks,

Sven