Lucene in Action, Second Edition

Chapter 5. Advanced search techniques

This chapter covers

• Loading field values for all documents
• Filtering and sorting search results
• Span and function queries
• Leveraging term vectors
• Stopping a slow search

Many applications that implement search with Lucene can do so using the API introduced in chapter 3. Some projects, though, need more than the basic searching mechanisms. Perhaps you need to use security filters to restrict which documents are searchable for certain users, or you’d like to see search results sorted by a specific field, such as title, instead of by relevance. Using term vectors, you can find documents similar to an existing one, or automatically categorize documents. Function queries allow you to use arbitrary logic ...