Zend_Search_Lucene index file formats are binary compatible with Java Lucene version 1.4 and greater.

A detailed description of this format is available here: http://lucene.apache.org/java/2_3_0/fileformats.html ^[18].

After index creation, the index directory will contain several files:

The Java program listing below provides an example of how to index a file using Java Lucene:

/**
* Index creation:
*/
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.document.*;

import java.io.*

...

IndexWriter indexWriter = new IndexWriter("/data/my_index",
                                          new SimpleAnalyzer(), true);

...

String filename = "/path/to/file-to-index.txt"
File f = new File(filename);

Document doc = new Document();
doc.add(Field.Text("path", filename));
doc.add(Field.Keyword("modified",DateField.timeToString(f.lastModified())));
doc.add(Field.Text("author", "unknown"));
FileInputStream is = new FileInputStream(f);
Reader reader = new BufferedReader(new InputStreamReader(is));
doc.add(Field.Text("contents", reader));

indexWriter.addDocument(doc);