1 import org.apache.lucene.index.*;
  2 import org.apache.lucene.document.Document;
  3 import org.apache.lucene.index.*;
  4 import java.lang.*;
  5 import java.util.*;
  6
  7 public class HelloIndexReader
  8 {
  9     public static void main(String []args) throws Exception
 10     {
 11         IndexReader reader = IndexReader.open("/data/helltolucene/index/");
 12         System.out.println(reader.indexExists("/data/helltolucene/index/"));
 13         System.out.println(reader.isLocked("/data/helltolucene/index/"));
 14         System.out.println("number of documents"+reader.numDocs());
 15         //System.out.println(reader.numDocs());
 16         //int del = reader.deleteDocuments(new Term("pubdate", "20041101"));
 17         //System.out.println(del);
 18         //System.out.println(reader.numDocs());
 19         TermDocs td = reader.termDocs(new Term("pmid","15841999 "));
 20         System.out.println("printing td.next()"+td.next());
 21         int doc_no = td.doc();
 22         System.out.println("doc_no="+doc_no);
 23         Document doc;
 24         doc = reader.document(doc_no);
 25         System.out.println("$"+doc.toString()+"$");
 26         reader.deleteDocument(doc_no);
 27         reader.close();
 28