DBSight is a J2EE search platform for instant scalable full-text search on any relational database, for both beginners and experts. It features a built-in database crawler following user-defined SQL, incremental indexing, user-controllable result ranking, the ability to return results with highlights (like Google), and categorized result counts (like Amazon). It can easily integrate with other languages with XML/JSON/HTML. There is a UI for all operations, so no Java coding is necessary. Deleted or updated records in database can be synchronized also.
The capability to customize Similarity class for different ranking algorithms was added. Tooltips are shown for SQL queries having double quotes inside.