BlackRay is a relational database system designed to offer performance features commonly associated with search engines. It offers SQL support and sophisticated operational and management features. Load-balancing and operational stability by means of N+1 redundance are included. BlackRay is called a "Data Engine" since it combines traditional, relational database features and SQL with the power and flexibility of search engines. It is a true hybrid, offering transaction support, data-versioned snapshots, and sophisticated function-based indices. Wildcards, phonetic, and fuzzy logic searches are supported, as well. BlackRay supports a subset of the SQL92 standard and provides JDBC/ODBC/native driver options via the PostgreSQL protocol, in addition to an API based query option. The project is released under the GPLv2, with some drivers available under BSD-style licenses. Commercial support contracts are available as well.
InstaSearch is an Eclipse IDE plug-in for performing quick and advanced searches of source code files. It uses the Apache Lucene library for indexing and fast searching of files in the workspace. The search is performed instantly as you type, and resulting files are displayed in an Eclipse view. Each file then can be previewed using a few of the most closely matching and relevant lines. A double-click on the match leads to the matching line in the file.