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PerFieldAnalyzerWrapper (Lucene 2.1.0 API)
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SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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org.apache.lucene.analysis</FONT>
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Class PerFieldAnalyzerWrapper</H2>
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<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/apache/lucene/analysis/Analyzer.html" title="class in org.apache.lucene.analysis">org.apache.lucene.analysis.Analyzer</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>org.apache.lucene.analysis.PerFieldAnalyzerWrapper</B>
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<DT>public class <B>PerFieldAnalyzerWrapper</B><DT>extends <A HREF="../../../../org/apache/lucene/analysis/Analyzer.html" title="class in org.apache.lucene.analysis">Analyzer</A></DL>
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This analyzer is used to facilitate scenarios where different fields require different analysis techniques. Use <A HREF="../../../../org/apache/lucene/analysis/PerFieldAnalyzerWrapper.html#addAnalyzer(java.lang.String, org.apache.lucene.analysis.Analyzer)"><CODE>addAnalyzer(java.lang.String, org.apache.lucene.analysis.Analyzer)</CODE></A> to add a non-default analyzer on a field name basis. <p>Example usage: <pre> PerFieldAnalyzerWrapper aWrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer()); aWrapper.addAnalyzer("firstname", new KeywordAnalyzer()); aWrapper.addAnalyzer("lastname", new KeywordAnalyzer()); </pre> <p>In this example, StandardAnalyzer will be used for all fields except "firstname" and "lastname", for which KeywordAnalyzer will be used. <p>A PerFieldAnalyzerWrapper can be used like any other analyzer, for both indexing and query parsing.
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<B>Constructor Summary</B></FONT></TD>
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<TD><CODE><B><A HREF="../../../../org/apache/lucene/analysis/PerFieldAnalyzerWrapper.html#PerFieldAnalyzerWrapper(org.apache.lucene.analysis.Analyzer)">PerFieldAnalyzerWrapper</A></B>(<A HREF="../../../../org/apache/lucene/analysis/Analyzer.html" title="class in org.apache.lucene.analysis">Analyzer</A> defaultAnalyzer)</CODE>
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Constructs with default analyzer.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/analysis/PerFieldAnalyzerWrapper.html#addAnalyzer(java.lang.String, org.apache.lucene.analysis.Analyzer)">addAnalyzer</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fieldName, <A HREF="../../../../org/apache/lucene/analysis/Analyzer.html" title="class in org.apache.lucene.analysis">Analyzer</A> analyzer)</CODE>
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Defines an analyzer to use for the specified field.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/analysis/PerFieldAnalyzerWrapper.html#getPositionIncrementGap(java.lang.String)">getPositionIncrementGap</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fieldName)</CODE>
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Return the positionIncrementGap from the analyzer assigned to fieldName</TD>
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<CODE> <A HREF="../../../../org/apache/lucene/analysis/TokenStream.html" title="class in org.apache.lucene.analysis">TokenStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/lucene/analysis/PerFieldAnalyzerWrapper.html#tokenStream(java.lang.String, java.io.Reader)">tokenStream</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fieldName, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Reader.html" title="class or interface in java.io">Reader</A> reader)</CODE>
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Creates a TokenStream which tokenizes all the text in the provided Reader.</TD>
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