Java – Lucerne: Search with partial words

I’m working on integrating Lucene into our app. Lucene is currently working, for example when I search for “upload” there is some text called “upload” in the document, then it works, but when I search for “Uplo” it doesn’t work. Any ideas?

Code:

  Directory directory = FSDirectory.open(path);
                IndexReader indexReader = DirectoryReader.open(directory);
                IndexSearcher indexSearcher = new IndexSearcher(indexReader);

QueryParser queryParser = new QueryParser("contents", new SimpleAnalyzer());
                Query query = queryParser.parse(text);
                TopDocs topDocs = indexSearcher.search(query, 50);
                for (ScoreDoc scoreDoc : topDocs.scoreDocs) {
                    org.apache.lucene.document.Document document = indexSearcher.doc(scoreDoc.doc);
                    objectIds.add(Integer.valueOf(document.get("id")));
                    System.out.println("");
                    System.out.println("id " + document.get("id"));
                    System.out.println("content " + document.get("contents"));
                }
                return objectIds;

Thank you.

“Upload” may be a token in your Lucene index, where token will be the smallest entity that cannot be further split. If you want to match a partial word like “Uplo”, then it’s best to choose Lucene NGram Indexing.Note that if you use NGram indexes, you will have higher space requirements for inverted indexes.