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Apache Lucene - Building and Installing the Basic Demo
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PDF</a>
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<h1>
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Apache Lucene - Building and Installing the Basic Demo
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</h1>
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<div id="minitoc-area">
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<ul class="minitoc">
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<li>
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<a href="#About this Document">About this Document</a>
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</li>
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<li>
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<a href="#About the Demos">About the Demos</a>
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</li>
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<li>
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<a href="#Setting your CLASSPATH">Setting your CLASSPATH</a>
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</li>
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<li>
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<a href="#Indexing Files">Indexing Files</a>
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</li>
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<li>
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<a href="#About the code...">About the code...</a>
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</li>
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</ul>
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</div>
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<a name="N10013"></a><a name="About this Document"></a>
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<h2 class="boxed">About this Document</h2>
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<div class="section">
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<p>
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This document is intended as a "getting started" guide to using and running the Lucene demos.
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It walks you through some basic installation and configuration.
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</p>
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</div>
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<a name="N1001C"></a><a name="About the Demos"></a>
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<h2 class="boxed">About the Demos</h2>
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<div class="section">
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<p>
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The Lucene command-line demo code consists of two applications that demonstrate various
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functionalities of Lucene and how one should go about adding Lucene to their applications.
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</p>
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</div>
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<a name="N10025"></a><a name="Setting your CLASSPATH"></a>
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<h2 class="boxed">Setting your CLASSPATH</h2>
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<div class="section">
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<p>
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First, you should <a href="http://www.apache.org/dyn/closer.cgi/lucene/java/">download</a> the
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latest Lucene distribution and then extract it to a working directory. Alternatively, you can <a href="http://wiki.apache.org/lucene-java/SourceRepository">check out the sources from
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Subversion</a>, and then run <span class="codefrag">ant war-demo</span> to generate the JARs and WARs.
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</p>
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<p>
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You should see the Lucene JAR file in the directory you created when you extracted the archive. It
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should be named something like <span class="codefrag">lucene-core-{version}.jar</span>. You should also see a file
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called <span class="codefrag">lucene-demos-{version}.jar</span>. If you checked out the sources from Subversion then
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the JARs are located under the <span class="codefrag">build</span> subdirectory (after running <span class="codefrag">ant</span>
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successfully). Put both of these files in your Java CLASSPATH.
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</p>
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</div>
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<a name="N10048"></a><a name="Indexing Files"></a>
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<h2 class="boxed">Indexing Files</h2>
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<div class="section">
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<p>
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Once you've gotten this far you're probably itching to go. Let's <b>build an index!</b> Assuming
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you've set your CLASSPATH correctly, just type:
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<pre>
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java org.apache.lucene.demo.IndexFiles {full-path-to-lucene}/src
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</pre>
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This will produce a subdirectory called <span class="codefrag">index</span> which will contain an index of all of the
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Lucene source code.
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</p>
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<p>
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To <b>search the index</b> type:
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<pre>
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java org.apache.lucene.demo.SearchFiles
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</pre>
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You'll be prompted for a query. Type in a swear word and press the enter key. You'll see that the
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Lucene developers are very well mannered and get no results. Now try entering the word "string".
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That should return a whole bunch of documents. The results will page at every tenth result and ask
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you whether you want more results.
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</p>
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</div>
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<a name="N10063"></a><a name="About the code..."></a>
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<h2 class="boxed">About the code...</h2>
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<div class="section">
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<p>
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<a href="demo2.html">read on>>></a>
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</p>
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</div>
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Copyright ©
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2006 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
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