I keep my search terms in a dedicated RAMDirectory (the termIndex).
In there I palce all the term of my real index. When putting the terms into the
termIndex I can still see [using the debugger] the Umlaute (äöü). Unfortunately
when searching the
termIndex the documents no more contain these Umlaute.
Populating the termIndex:
termIndex = new RAMDirectory();
IndexWriterConfig config = new IndexWriterConfig( Version.LUCENE_31, new
TermAnalyzer( locale ) );
termIndexWriter = new IndexWriter( termIndex, config );
TermEnum tEnum = realIndexReader.terms();
while ( tEnum.next() )
{
Term t = tEnum.term();
String termText = t.text();
Document termDocument = new Document();
Field field = new Field( FIELDNAME_TERM, termText, Field.Store.YES,
Field.Index.ANALYZED );
termDocument.add( field );
// and add term into the index
termIndexWriter.addDocument( termDocument );
}
termIndexWriter.commit();
termIndexWriter.optimize();
termIndexWriter.close();
termIndexReader = IndexReader.open( termIndex, true );
---------- searching terms
Query q = fuzzy ? new FuzzyQuery( new Term( FIELDNAME_TERM,
termFilter.toLowerCase() ) ) :
new WildcardQuery( new Term(
FIELDNAME_TERM, "*" + termFilter.toLowerCase() + "*" ) );
TopDocs topDocs = new IndexSearcher( getTermIndexReader() ).search( q, 100 );
for ( ScoreDoc hit : topDocs.scoreDocs )
{
Document doc = getTermIndexReader().document( hit.doc );
String indexTerm = doc.get( FIELDNAME_TERM );
if ( !returnValue.contains( indexTerm ) )
{
returnValue.add( indexTerm );
}
}
----------
The TermAbnalyzer is the same analyzer as the main index analyzer with the
exception that a LowerCaseFilter is applied.
I have unit tests for my Umlaute which work as expected.
Unfortunately this is not the case when I debug my real app...
What could possibly cause the "loss"?
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