Apache > Lucene
 

Apache Lucene - Features

Features

Lucene offers powerful features through a simple API:

Scalable, High-Performance Indexing

  • over 20MB/minute on Pentium M 1.5GHz
  • small RAM requirements -- only 1MB heap
  • incremental indexing as fast as batch indexing
  • index size roughly 20-30% the size of text indexed

Powerful, Accurate and Efficient Search Algorithms

  • ranked searching -- best results returned first
  • many powerful query types: phrase queries, wildcard queries, proximity queries, range queries and more
  • fielded searching (e.g., title, author, contents)
  • date-range searching
  • sorting by any field
  • multiple-index searching with merged results
  • allows simultaneous update and searching

Cross-Platform Solution