patternanalyzer.html

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<TD><B>Methods inherited from class org.apache.lucene.analysis.<A HREF="../../../../../org/apache/lucene/analysis/Analyzer.html" title="class in org.apache.lucene.analysis">Analyzer</A></B></TD>
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<TD><CODE><A HREF="../../../../../org/apache/lucene/analysis/Analyzer.html#getPositionIncrementGap(java.lang.String)">getPositionIncrementGap</A></CODE></TD>
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<A NAME="NON_WORD_PATTERN"><!-- --></A><H3>
NON_WORD_PATTERN</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/regex/Pattern.html" title="class or interface in java.util.regex">Pattern</A> <B>NON_WORD_PATTERN</B></PRE>
<DL>
<DD><code>"\\W+"</code>; Divides text at non-letters (!Character.isLetter(c))
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="WHITESPACE_PATTERN"><!-- --></A><H3>
WHITESPACE_PATTERN</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/regex/Pattern.html" title="class or interface in java.util.regex">Pattern</A> <B>WHITESPACE_PATTERN</B></PRE>
<DL>
<DD><code>"\\s+"</code>; Divides text at whitespaces (Character.isWhitespace(c))
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="DEFAULT_ANALYZER"><!-- --></A><H3>
DEFAULT_ANALYZER</H3>
<PRE>
public static final <A HREF="../../../../../org/apache/lucene/index/memory/PatternAnalyzer.html" title="class in org.apache.lucene.index.memory">PatternAnalyzer</A> <B>DEFAULT_ANALYZER</B></PRE>
<DL>
<DD>A lower-casing word analyzer with English stop words (can be shared
 freely across threads without harm); global per class loader.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="EXTENDED_ANALYZER"><!-- --></A><H3>
EXTENDED_ANALYZER</H3>
<PRE>
public static final <A HREF="../../../../../org/apache/lucene/index/memory/PatternAnalyzer.html" title="class in org.apache.lucene.index.memory">PatternAnalyzer</A> <B>EXTENDED_ANALYZER</B></PRE>
<DL>
<DD>A lower-casing word analyzer with <b>extended </b> English stop words
 (can be shared freely across threads without harm); global per class
 loader. The stop words are borrowed from
 http://thomas.loc.gov/home/stopwords.html, see
 http://thomas.loc.gov/home/all.about.inquery.html
<P>
<DL>
</DL>
</DL>

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<A NAME="PatternAnalyzer(java.util.regex.Pattern, boolean, java.util.Set)"><!-- --></A><H3>
PatternAnalyzer</H3>
<PRE>
public <B>PatternAnalyzer</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/regex/Pattern.html" title="class or interface in java.util.regex">Pattern</A>&nbsp;pattern,
                       boolean&nbsp;toLowerCase,
                       <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A>&nbsp;stopWords)</PRE>
<DL>
<DD>Constructs a new instance with the given parameters.
<P>
<DT><B>Parameters:</B><DD><CODE>pattern</CODE> - a regular expression delimiting tokens<DD><CODE>toLowerCase</CODE> - if <code>true</code> returns tokens after applying
            String.toLowerCase()<DD><CODE>stopWords</CODE> - if non-null, ignores all tokens that are contained in the
            given stop set (after previously having applied toLowerCase()
            if applicable). For example, created via
            <A HREF="../../../../../org/apache/lucene/analysis/StopFilter.html#makeStopSet(java.lang.String[])"><CODE>StopFilter.makeStopSet(String[])</CODE></A>and/or
            <A HREF="../../../../../org/apache/lucene/analysis/WordlistLoader.html" title="class in org.apache.lucene.analysis"><CODE>WordlistLoader</CODE></A>as in
            <code>WordlistLoader.getWordSet(new File("samples/fulltext/stopwords.txt")</code>
            or <a href="http://www.unine.ch/info/clef/">other stop words
            lists </a>.</DL>

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<A NAME="tokenStream(java.lang.String, java.lang.String)"><!-- --></A><H3>
tokenStream</H3>
<PRE>
public <A HREF="../../../../../org/apache/lucene/analysis/TokenStream.html" title="class in org.apache.lucene.analysis">TokenStream</A> <B>tokenStream</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>&nbsp;fieldName,
                               <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;text)</PRE>
<DL>
<DD>Creates a token stream that tokenizes the given string into token terms
 (aka words).
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fieldName</CODE> - the name of the field to tokenize (currently ignored).<DD><CODE>text</CODE> - the string to tokenize
<DT><B>Returns:</B><DD>a new token stream</DL>
</DD>
</DL>
<HR>

<A NAME="tokenStream(java.lang.String, java.io.Reader)"><!-- --></A><H3>
tokenStream</H3>
<PRE>
public <A HREF="../../../../../org/apache/lucene/analysis/TokenStream.html" title="class in org.apache.lucene.analysis">TokenStream</A> <B>tokenStream</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>&nbsp;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>&nbsp;reader)</PRE>
<DL>
<DD>Creates a token stream that tokenizes all the text in the given Reader;
 This implementation forwards to <code>tokenStream(String, String)</code> and is
 less efficient than <code>tokenStream(String, String)</code>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/lucene/analysis/Analyzer.html#tokenStream(java.lang.String, java.io.Reader)">tokenStream</A></CODE> in class <CODE><A HREF="../../../../../org/apache/lucene/analysis/Analyzer.html" title="class in org.apache.lucene.analysis">Analyzer</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fieldName</CODE> - the name of the field to tokenize (currently ignored).<DD><CODE>reader</CODE> - the reader delivering the text
<DT><B>Returns:</B><DD>a new token stream</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;other)</PRE>
<DL>
<DD>Indicates whether some other object is "equal to" this one.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>other</CODE> - the reference object with which to compare.
<DT><B>Returns:</B><DD>true if equal, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns a hash code value for the object.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the hash code.</DL>
</DD>
</DL>
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