2007-06-26 00:26:07 -04:00
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
2006-11-26 19:03:13 -05:00
< html >
< head >
< META http-equiv = "Content-Type" content = "text/html; charset=UTF-8" >
< meta content = "Apache Forrest" name = "Generator" >
2007-06-26 00:26:07 -04:00
< meta name = "Forrest-version" content = "0.8" >
2006-11-26 19:03:13 -05:00
< meta name = "Forrest-skin-name" content = "pelt" >
< title > Apache Lucene - Features< / title >
< link type = "text/css" href = "skin/basic.css" rel = "stylesheet" >
< link media = "screen" type = "text/css" href = "skin/screen.css" rel = "stylesheet" >
< link media = "print" type = "text/css" href = "skin/print.css" rel = "stylesheet" >
< link type = "text/css" href = "skin/profile.css" rel = "stylesheet" >
< script src = "skin/getBlank.js" language = "javascript" type = "text/javascript" > < / script > < script src = "skin/getMenu.js" language = "javascript" type = "text/javascript" > < / script > < script src = "skin/fontsize.js" language = "javascript" type = "text/javascript" > < / script >
< link rel = "shortcut icon" href = "images/favicon.ico" >
< / head >
< body onload = "init()" >
< script type = "text/javascript" > ndeSetTextSize ( ) ; < / script >
< div id = "top" >
2007-06-26 00:26:07 -04:00
<!-- +
|breadtrail
+-->
2006-11-26 19:03:13 -05:00
< div class = "breadtrail" >
2006-12-02 07:11:45 -05:00
< a href = "http://www.apache.org/" > Apache< / a > > < a href = "http://lucene.apache.org/" > Lucene< / a > < script src = "skin/breadcrumbs.js" language = "JavaScript" type = "text/javascript" > < / script >
2006-11-26 19:03:13 -05:00
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|header
+-->
2006-11-26 19:03:13 -05:00
< div class = "header" >
2007-06-26 00:26:07 -04:00
<!-- +
|start group logo
+-->
2006-11-26 19:03:13 -05:00
< div class = "grouplogo" >
2006-12-02 07:11:45 -05:00
< a href = "http://lucene.apache.org/" > < img class = "logoImage" alt = "Lucene" src = "http://www.apache.org/images/asf_logo_simple.png" title = "Apache Lucene" > < / a >
2006-11-26 19:03:13 -05:00
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end group logo
+-->
<!-- +
|start Project Logo
+-->
2006-11-26 19:03:13 -05:00
< div class = "projectlogo" >
< a href = "http://lucene.apache.org/java/" > < img class = "logoImage" alt = "Lucene" src = "http://lucene.apache.org/images/lucene_green_300.gif" title = "Apache Lucene is 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.">< / a >
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end Project Logo
+-->
<!-- +
|start Search
+-->
2006-11-26 19:03:13 -05:00
< div class = "searchbox" >
< form action = "http://www.google.com/search" method = "get" class = "roundtopsmall" >
< input value = "lucene.apache.org" name = "sitesearch" type = "hidden" > < input onFocus = "getBlank (this, 'Search the site with google');" size = "25" name = "q" id = "query" type = "text" value = "Search the site with google" >
2007-06-26 00:26:07 -04:00
< input name = "Search" value = "Search" type = "submit" >
2006-11-26 19:03:13 -05:00
< / form >
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end search
+-->
<!-- +
|start Tabs
+-->
2006-11-26 19:03:13 -05:00
< ul id = "tabs" >
< li class = "current" >
2007-06-26 00:26:07 -04:00
< a class = "selected" href = "index.html" > Main< / a >
2006-11-26 19:03:13 -05:00
< / li >
< li >
2007-06-26 00:26:07 -04:00
< a class = "unselected" href = "http://wiki.apache.org/lucene-java" > Wiki< / a >
2006-11-26 19:03:13 -05:00
< / li >
< / ul >
2007-06-26 00:26:07 -04:00
<!-- +
|end Tabs
+-->
2006-11-26 19:03:13 -05:00
< / div >
< / div >
< div id = "main" >
< div id = "publishedStrip" >
2007-06-26 00:26:07 -04:00
<!-- +
|start Subtabs
+-->
2006-11-26 19:03:13 -05:00
< div id = "level2tabs" > < / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end Endtabs
+-->
2006-11-26 19:03:13 -05:00
< script type = "text/javascript" > < ! - -
2007-06-26 00:26:07 -04:00
document.write("Last Published: " + document.lastModified);
2006-11-26 19:03:13 -05:00
// -->< / script >
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|breadtrail
+-->
2006-11-26 19:03:13 -05:00
< div class = "breadtrail" >
2007-06-26 00:26:07 -04:00
2006-11-26 19:03:13 -05:00
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|start Menu, mainarea
+-->
<!-- +
|start Menu
+-->
2006-11-26 19:03:13 -05:00
< div id = "menu" >
< div onclick = "SwitchMenu('menu_selected_1.1', 'skin/')" id = "menu_selected_1.1Title" class = "menutitle" style = "background-image: url('skin/images/chapter_open.gif');" > About< / div >
< div id = "menu_selected_1.1" class = "selectedmenuitemgroup" style = "display: block;" >
< div class = "menuitem" >
< a href = "index.html" title = "Welcome to Java Lucene" > Overview< / a >
< / div >
< div class = "menupage" >
< div class = "menupagetitle" > Features< / div >
< / div >
< div class = "menuitem" >
2007-03-09 17:29:00 -05:00
< a href = "http://wiki.apache.org/lucene-java/PoweredBy" > Powered by Lucene< / a >
2006-11-26 19:03:13 -05:00
< / div >
< div class = "menuitem" >
< a href = "whoweare.html" > Who We Are< / a >
< / div >
< / div >
< div onclick = "SwitchMenu('menu_1.2', 'skin/')" id = "menu_1.2Title" class = "menutitle" > Documentation< / div >
< div id = "menu_1.2" class = "menuitemgroup" >
2007-11-14 14:16:19 -05:00
< div onclick = "SwitchMenu('menu_1.2.1', 'skin/')" id = "menu_1.2.1Title" class = "menutitle" > Javadocs< / div >
< div id = "menu_1.2.1" class = "menuitemgroup" >
2006-11-26 19:03:13 -05:00
< div class = "menuitem" >
2007-11-14 14:16:19 -05:00
< a href = "api/index.html" > All (Core, Demo, Contrib)< / a >
< / div >
< div class = "menuitem" >
< a href = "api/core/index.html" > Core< / a >
< / div >
< div class = "menuitem" >
< a href = "api/demo/index.html" > Demo< / a >
< / div >
< div onclick = "SwitchMenu('menu_1.2.1.4', 'skin/')" id = "menu_1.2.1.4Title" class = "menutitle" > Contrib< / div >
< div id = "menu_1.2.1.4" class = "menuitemgroup" >
< div class = "menuitem" >
< a href = "api/contrib-analyzers/index.html" > Analyzers< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-ant/index.html" > Ant< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-bdb/index.html" > Bdb< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-bdb-je/index.html" > Bdb-je< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-benchmark/index.html" > Benchmark< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-highlighter/index.html" > Highlighter< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-lucli/index.html" > Lucli< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-memory/index.html" > Memory< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-misc/index.html" > Miscellaneous< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-queries/index.html" > Queries< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-regex/index.html" > Regex< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-snowball/index.html" > Snowball< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-spellchecker/index.html" > Spellchecker< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-surround/index.html" > Surround< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-swing/index.html" > Swing< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-wordnet/index.html" > Wordnet< / a >
< / div >
< div class = "menuitem" >
< a href = "api/contrib-xml-query-parser/index.html" > XML Query Parser< / a >
< / div >
< / div >
2006-11-26 19:03:13 -05:00
< / div >
< div class = "menuitem" >
< a href = "benchmarks.html" > Benchmarks< / a >
< / div >
< div class = "menuitem" >
< a href = "contributions.html" > Contributions< / a >
< / div >
< div class = "menuitem" >
2007-03-09 17:29:00 -05:00
< a href = "http://wiki.apache.org/lucene-java/LuceneFAQ" > FAQ< / a >
2006-11-26 19:03:13 -05:00
< / div >
< div class = "menuitem" >
< a href = "fileformats.html" > File Formats< / a >
< / div >
< div class = "menuitem" >
< a href = "gettingstarted.html" > Getting Started< / a >
< / div >
< div class = "menuitem" >
< a href = "lucene-sandbox/index.html" > Lucene Sandbox< / a >
< / div >
< div class = "menuitem" >
< a href = "queryparsersyntax.html" > Query Syntax< / a >
< / div >
< div class = "menuitem" >
< a href = "scoring.html" > Scoring< / a >
< / div >
< div class = "menuitem" >
2007-03-09 17:29:00 -05:00
< a href = "http://wiki.apache.org/lucene-java" > Wiki< / a >
2006-11-26 19:03:13 -05:00
< / div >
< / div >
< div onclick = "SwitchMenu('menu_1.3', 'skin/')" id = "menu_1.3Title" class = "menutitle" > Resources< / div >
< div id = "menu_1.3" class = "menuitemgroup" >
< div class = "menuitem" >
2006-12-02 07:11:45 -05:00
< a href = "developer-resources.html" > Developers< / a >
< / div >
< div class = "menuitem" >
2006-11-26 19:03:13 -05:00
< a href = "http://issues.apache.org/jira/browse/LUCENE" > Issue Tracking< / a >
< / div >
< div class = "menuitem" >
< a href = "mailinglists.html" > Mailing Lists< / a >
< / div >
< div class = "menuitem" >
2006-12-02 07:11:45 -05:00
< a href = "releases.html" > Releases< / a >
2006-11-26 19:03:13 -05:00
< / div >
< div class = "menuitem" >
2006-12-09 11:32:22 -05:00
< a href = "systemrequirements.html" > System Requirements< / a >
< / div >
< div class = "menuitem" >
2006-11-26 19:03:13 -05:00
< a href = "http://svn.apache.org/viewcvs.cgi/lucene/java/" > Version Control< / a >
< / div >
< / div >
< div onclick = "SwitchMenu('menu_1.4', 'skin/')" id = "menu_1.4Title" class = "menutitle" > Site Versions< / div >
< div id = "menu_1.4" class = "menuitemgroup" >
< div class = "menuitem" >
2006-12-02 07:11:45 -05:00
< a href = "./" > Main< / a >
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/java/1_4_3/" > 1.4.3< / a >
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/java/1_9_0/" > 1.9.0< / a >
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/java/1_9_1/" > 1.9.1< / a >
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/java/2_0_0/" > 2.0.0< / a >
2006-11-26 19:03:13 -05:00
< / div >
2007-02-18 09:24:11 -05:00
< div class = "menuitem" >
< a href = "http://lucene.apache.org/java/2_1_0/" > 2.1.0< / a >
< / div >
2007-06-19 04:00:51 -04:00
< div class = "menuitem" >
< a href = "http://lucene.apache.org/java/2_2_0/" > 2.2.0< / a >
< / div >
2006-11-26 19:03:13 -05:00
< / div >
< div onclick = "SwitchMenu('menu_1.5', 'skin/')" id = "menu_1.5Title" class = "menutitle" > Related Projects< / div >
< div id = "menu_1.5" class = "menuitemgroup" >
< div class = "menuitem" >
< a href = "http://lucene.apache.org" > Lucene (Top-Level)< / a >
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/hadoop/" > Hadoop< / a >
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/lucy/" > Lucy< / a >
< / div >
< div class = "menuitem" >
2007-01-05 22:38:44 -05:00
< a href = "http://incubator.apache.org/projects/lucene.net.html" > Lucene.Net< / a >
2006-11-26 19:03:13 -05:00
< / div >
< div class = "menuitem" >
< a href = "http://lucene.apache.org/nutch/" > Nutch< / a >
< / div >
< div class = "menuitem" >
2007-01-23 20:28:53 -05:00
< a href = "http://lucene.apache.org/solr/" > SOLR< / a >
2006-11-26 19:03:13 -05:00
< / div >
< / div >
< div id = "credit" > < / div >
< div id = "roundbottom" >
< img style = "display: none" class = "corner" height = "15" width = "15" alt = "" src = "skin/images/rc-b-l-15-1body-2menu-3menu.png" > < / div >
2007-06-26 00:26:07 -04:00
<!-- +
|alternative credits
+-->
2006-11-26 19:03:13 -05:00
< div id = "credit2" > < / div >
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end Menu
+-->
<!-- +
|start content
+-->
2006-11-26 19:03:13 -05:00
< div id = "content" >
< div title = "Portable Document Format" class = "pdflink" >
< a class = "dida" href = "features.pdf" > < img alt = "PDF -icon" src = "skin/images/pdfdoc.gif" class = "skin" > < br >
PDF< / a >
< / div >
< h1 > Apache Lucene - Features< / h1 >
< div id = "minitoc-area" >
< ul class = "minitoc" >
< li >
< a href = "#Features" > Features< / a >
< / li >
< li >
< a href = "#Scalable, High-Performance Indexing" > Scalable, High-Performance Indexing< / a >
< / li >
< li >
< a href = "#Powerful, Accurate and Efficient Search Algorithms" > Powerful, Accurate and Efficient Search Algorithms< / a >
< / li >
< li >
< a href = "#Cross-Platform Solution" > Cross-Platform Solution< / a >
< / li >
< / ul >
< / div >
< a name = "N1000C" > < / a > < a name = "Features" > < / a >
< h2 class = "boxed" > Features< / h2 >
< div class = "section" >
< p > Lucene offers powerful features through a simple API:< / p >
< / div >
< a name = "N10015" > < / a > < a name = "Scalable, High-Performance Indexing" > < / a >
< h2 class = "boxed" > Scalable, High-Performance Indexing< / h2 >
< div class = "section" >
< ul >
< li > over 20MB/minute on Pentium M 1.5GHz< br >
< / li >
< li > small RAM requirements -- only 1MB heap< / li >
< li > incremental indexing as fast as batch indexing< / li >
< li > index size roughly 20-30% the size of text indexed< / li >
< / ul >
< / div >
< a name = "N1002B" > < / a > < a name = "Powerful, Accurate and Efficient Search Algorithms" > < / a >
< h2 class = "boxed" > Powerful, Accurate and Efficient Search Algorithms< / h2 >
< div class = "section" >
< ul >
< li > ranked searching -- best results returned first< / li >
< li > many powerful query types: phrase queries, wildcard queries, proximity
queries, range queries and more< / li >
< li > fielded searching (e.g., title, author, contents)< / li >
< li > date-range searching< / li >
< li > sorting by any field< / li >
< li > multiple-index searching with merged results< / li >
< li > allows simultaneous update and searching< / li >
< / ul >
< / div >
< a name = "N10049" > < / a > < a name = "Cross-Platform Solution" > < / a >
< h2 class = "boxed" > Cross-Platform Solution< / h2 >
< div class = "section" >
< ul >
< li > Available as Open Source software under the
< a href = "http://www.apache.org/licenses/LICENSE-2.0.html" > Apache License< / a >
which lets you use Lucene in both commercial and Open Source programs< / li >
< li > 100%-pure Java< / li >
2007-03-09 17:29:00 -05:00
< li > Implementations < a href = "http://wiki.apache.org/lucene-java/LuceneImplementations" > in other
2006-11-26 19:03:13 -05:00
programming languages available< / a > that are index-compatible< / li >
< / ul >
< / div >
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end content
+-->
2006-11-26 19:03:13 -05:00
< div class = "clearboth" > < / div >
< / div >
< div id = "footer" >
2007-06-26 00:26:07 -04:00
<!-- +
|start bottomstrip
+-->
2006-11-26 19:03:13 -05:00
< div class = "lastmodified" >
< script type = "text/javascript" > < ! - -
2007-06-26 00:26:07 -04:00
document.write("Last Published: " + document.lastModified);
2006-11-26 19:03:13 -05:00
// -->< / script >
< / div >
< div class = "copyright" >
Copyright ©
2006 < a href = "http://www.apache.org/licenses/" > The Apache Software Foundation.< / a >
< / div >
2007-06-26 00:26:07 -04:00
<!-- +
|end bottomstrip
+-->
2006-11-26 19:03:13 -05:00
< / div >
< / body >
< / html >
