Zend_Search_Lucene index file formats are binary compatible with a Lucene version 1.4 and above.
A detailed description of this format is available here: http://lucene.apache.org/java/docs/fileformats.html.
After index creation, the index directory will contain several files:
segments file is a list of index segments.
*.cfs files contain index segments.
Note! Optimized index has always only one segment.
deletable file is a list of files that are no longer used
by the index, but which could not be deleted.
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);