Apache LuceneAn open source text search engine library | |
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Apache Lucene Description
A high-performance, full-featured text search engine library written entirely in Java It is a technology suitable for nearly any application that requires full-text search, especially cross-platform. Apache Lucene is an open source project available for free download. 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 * Available as Open Source software under the Apache License which lets you use Lucene in both commercial and Open Source programs * 100%-pure Java * Implementations in other programming languages available that are index-compatible
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