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update example so no deprecated code is used 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@703881 13f79535-47bb-0310-9956-ffa450edef68
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Daniel Naber 2008-10-12 21:24:56 +00:00
parent 7ecd3260ad
commit c027596aa2
1 changed files with 8 additions and 8 deletions
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16
src/java/overview.html
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@ -24,6 +24,7 @@
Here's a simple example how to use Lucene for indexing and searching (using JUnit Here's a simple example how to use Lucene for indexing and searching (using JUnit
to check if the results are what we expect):</p> to check if the results are what we expect):</p>
<!-- code comes from org.apache.lucene.TestDemo: -->
<!-- ======================================================== --> <!-- ======================================================== -->
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<!-- = Java2Html Converter 5.0 [2006-02-26] by Markus Gebhard markus@jave.de = --> <!-- = Java2Html Converter 5.0 [2006-02-26] by Markus Gebhard markus@jave.de = -->
@ -40,14 +41,13 @@ to check if the results are what we expect):</p>
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Directory&nbsp;directory&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">RAMDirectory</font><font color="#000000">()</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Directory&nbsp;directory&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">RAMDirectory</font><font color="#000000">()</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;To&nbsp;store&nbsp;an&nbsp;index&nbsp;on&nbsp;disk,&nbsp;use&nbsp;this&nbsp;instead:</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;To&nbsp;store&nbsp;an&nbsp;index&nbsp;on&nbsp;disk,&nbsp;use&nbsp;this&nbsp;instead:</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//Directory&nbsp;directory&nbsp;=&nbsp;FSDirectory.getDirectory(&#34;/tmp/testindex&#34;);</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//Directory&nbsp;directory&nbsp;=&nbsp;FSDirectory.getDirectory(&#34;/tmp/testindex&#34;);</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">IndexWriter&nbsp;iwriter&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">IndexWriter</font><font color="#000000">(</font><font color="#000000">directory,&nbsp;analyzer,&nbsp;</font><font color="#7f0055"><b>true</b></font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">IndexWriter&nbsp;iwriter&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">IndexWriter</font><font color="#000000">(</font><font color="#000000">directory,&nbsp;analyzer,&nbsp;true,</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">iwriter.setMaxFieldLength</font><font color="#000000">(</font><font color="#990000">25000</font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">IndexWriter.MaxFieldLength</font><font color="#000000">(</font><font color="#990000">25000</font><font color="#000000">))</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Document&nbsp;doc&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">Document</font><font color="#000000">()</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Document&nbsp;doc&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">Document</font><font color="#000000">()</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">String&nbsp;text&nbsp;=&nbsp;</font><font color="#2a00ff">&#34;This&nbsp;is&nbsp;the&nbsp;text&nbsp;to&nbsp;be&nbsp;indexed.&#34;</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">String&nbsp;text&nbsp;=&nbsp;</font><font color="#2a00ff">&#34;This&nbsp;is&nbsp;the&nbsp;text&nbsp;to&nbsp;be&nbsp;indexed.&#34;</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">doc.add</font><font color="#000000">(</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">Field</font><font color="#000000">(</font><font color="#2a00ff">&#34;fieldname&#34;</font><font color="#000000">,&nbsp;text,&nbsp;Field.Store.YES,</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">doc.add</font><font color="#000000">(</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">Field</font><font color="#000000">(</font><font color="#2a00ff">&#34;fieldname&#34;</font><font color="#000000">,&nbsp;text,&nbsp;Field.Store.YES,</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Field.Index.TOKENIZED</font><font color="#000000">))</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Field.Index.ANALYZED</font><font color="#000000">))</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">iwriter.addDocument</font><font color="#000000">(</font><font color="#000000">doc</font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">iwriter.addDocument</font><font color="#000000">(</font><font color="#000000">doc</font><font color="#000000">)</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">iwriter.optimize</font><font color="#000000">()</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">iwriter.close</font><font color="#000000">()</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">iwriter.close</font><font color="#000000">()</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;Now&nbsp;search&nbsp;the&nbsp;index:</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;Now&nbsp;search&nbsp;the&nbsp;index:</font><br />
@ -55,11 +55,11 @@ to check if the results are what we expect):</p>
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;Parse&nbsp;a&nbsp;simple&nbsp;query&nbsp;that&nbsp;searches&nbsp;for&nbsp;&#34;text&#34;:</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;Parse&nbsp;a&nbsp;simple&nbsp;query&nbsp;that&nbsp;searches&nbsp;for&nbsp;&#34;text&#34;:</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">QueryParser&nbsp;parser&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">QueryParser</font><font color="#000000">(</font><font color="#2a00ff">&#34;fieldname&#34;</font><font color="#000000">,&nbsp;analyzer</font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">QueryParser&nbsp;parser&nbsp;=&nbsp;</font><font color="#7f0055"><b>new&nbsp;</b></font><font color="#000000">QueryParser</font><font color="#000000">(</font><font color="#2a00ff">&#34;fieldname&#34;</font><font color="#000000">,&nbsp;analyzer</font><font color="#000000">)</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Query&nbsp;query&nbsp;=&nbsp;parser.parse</font><font color="#000000">(</font><font color="#2a00ff">&#34;text&#34;</font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Query&nbsp;query&nbsp;=&nbsp;parser.parse</font><font color="#000000">(</font><font color="#2a00ff">&#34;text&#34;</font><font color="#000000">)</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Hits&nbsp;hits&nbsp;=&nbsp;isearcher.search</font><font color="#000000">(</font><font color="#000000">query</font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">ScoreDoc</font><font color="#000000">[]&nbsp;</font><font color="#000000">hits&nbsp;=&nbsp;isearcher.search</font><font color="#000000">(</font><font color="#000000">query,&nbsp;null,&nbsp;</font><font color="#990000">1000</font><font color="#000000">)</font><font color="#000000">.scoreDocs;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">assertEquals</font><font color="#000000">(</font><font color="#990000">1</font><font color="#000000">,&nbsp;hits.length</font><font color="#000000">())</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">assertEquals</font><font color="#000000">(</font><font color="#990000">1</font><font color="#000000">,&nbsp;hits.length</font><font color="#000000">)</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;Iterate&nbsp;through&nbsp;the&nbsp;results:</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#3f7f5f">//&nbsp;Iterate&nbsp;through&nbsp;the&nbsp;results:</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#7f0055"><b>for&nbsp;</b></font><font color="#000000">(</font><font color="#7f0055"><b>int&nbsp;</b></font><font color="#000000">i&nbsp;=&nbsp;</font><font color="#990000">0</font><font color="#000000">;&nbsp;i&nbsp;&lt;&nbsp;hits.length</font><font color="#000000">()</font><font color="#000000">;&nbsp;i++</font><font color="#000000">)&nbsp;{</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#7f0055"><b>for&nbsp;</b></font><font color="#000000">(</font><font color="#7f0055"><b>int&nbsp;</b></font><font color="#000000">i&nbsp;=&nbsp;</font><font color="#990000">0</font><font color="#000000">;&nbsp;i&nbsp;&lt;&nbsp;hits.length;&nbsp;i++</font><font color="#000000">)&nbsp;{</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Document&nbsp;hitDoc&nbsp;=&nbsp;hits.doc</font><font color="#000000">(</font><font color="#000000">i</font><font color="#000000">)</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">Document&nbsp;hitDoc&nbsp;=&nbsp;isearcher.doc</font><font color="#000000">(</font><font color="#000000">hits</font><font color="#000000">[</font><font color="#000000">i</font><font color="#000000">]</font><font color="#000000">.doc</font><font color="#000000">)</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">assertEquals</font><font color="#000000">(</font><font color="#2a00ff">&#34;This&nbsp;is&nbsp;the&nbsp;text&nbsp;to&nbsp;be&nbsp;indexed.&#34;</font><font color="#000000">,&nbsp;hitDoc.get</font><font color="#000000">(</font><font color="#2a00ff">&#34;fieldname&#34;</font><font color="#000000">))</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">assertEquals</font><font color="#000000">(</font><font color="#2a00ff">&#34;This&nbsp;is&nbsp;the&nbsp;text&nbsp;to&nbsp;be&nbsp;indexed.&#34;</font><font color="#000000">,&nbsp;hitDoc.get</font><font color="#000000">(</font><font color="#2a00ff">&#34;fieldname&#34;</font><font color="#000000">))</font><font color="#000000">;</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">}</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">}</font><br />
<font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">isearcher.close</font><font color="#000000">()</font><font color="#000000">;</font><br /> <font color="#ffffff">&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#000000">isearcher.close</font><font color="#000000">()</font><font color="#000000">;</font><br />