2005-05-14 19:05:04 -04:00
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<?xml version="1.0"?>
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<document>
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<properties>
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<title>Features</title>
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</properties>
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<body>
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<section name="Features">
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<p>Lucene offers powerful features through a simple API:</p>
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</section>
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<section name="Scalable, High-Performance Indexing">
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<ul>
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<li>over 20MB/minute on Pentium M 1.5GHz<br/></li>
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<li>small RAM requirements -- only 1MB heap</li>
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<li>incremental indexing as fast as batch indexing</li>
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<li>index size roughly 20-30% the size of text indexed</li>
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</ul>
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</section>
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<section name="Powerful, Accurate and Efficient Search Algorithms">
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<ul>
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<li>ranked searching -- best results returned first</li>
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<li>many powerful query types: phrase queries, wildcard queries, proximity
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queries, range queries and more</li>
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<li>fielded searching (e.g., title, author, contents)</li>
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<li>date-range searching</li>
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<li>sorting by any field</li>
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<li>multiple-index searching with merged results</li>
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<li>allows simultaneous update and searching</li>
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</ul>
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</section>
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<section name="Cross-Platform Solution">
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<ul>
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2005-06-30 15:26:13 -04:00
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<li>Available as Open Source software under the
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<a href="http://www.apache.org/licenses/LICENSE-2.0.html">Apache License</a>
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which lets you use Lucene in both commercial and Open Source programs</li>
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<li>100%-pure Java</li>
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<li>implementations <a href="http://wiki.apache.org/jakarta-lucene/LuceneImplementations">in other
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programming languages available</a> that are index-compatible</li>
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2005-05-14 19:05:04 -04:00
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</ul>
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</section>
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</body>
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</document>
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