org.apache.lucene.analysis.synonym

Class SynonymMap.Builder

java.lang.Object

org.apache.lucene.analysis.synonym.SynonymMap.Builder

Direct Known Subclasses:

SolrSynonymParser, WordnetSynonymParser

Enclosing class:

SynonymMap

public static class SynonymMap.Builder
extends java.lang.Object

Builds an FSTSynonymMap.

Call add() until you have added all the mappings, then call build() to get an FSTSynonymMap

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor and Description
Builder(boolean dedup) If dedup is true then identical rules (same input, same output) will be added only once.

Method Summary

Modifier and Type	Method and Description
void	add(org.apache.lucene.util.CharsRef input, org.apache.lucene.util.CharsRef output, boolean includeOrig) Add a phrase->phrase synonym mapping.
static org.apache.lucene.util.CharsRef	analyze(org.apache.lucene.analysis.Analyzer analyzer, java.lang.String text, org.apache.lucene.util.CharsRef reuse) Sugar: analyzes the text with the analyzer and separates by SynonymMap.WORD_SEPARATOR.
SynonymMap	build() Builds an SynonymMap and returns it.
static org.apache.lucene.util.CharsRef	join(java.lang.String[] words, org.apache.lucene.util.CharsRef reuse) Sugar: just joins the provided terms with SynonymMap.WORD_SEPARATOR.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Builder

public Builder(boolean dedup)

If dedup is true then identical rules (same input, same output) will be added only once.

Method Detail

join

public static org.apache.lucene.util.CharsRef join(java.lang.String[] words,
                                                   org.apache.lucene.util.CharsRef reuse)

Sugar: just joins the provided terms with SynonymMap.WORD_SEPARATOR. reuse and its chars must not be null.

analyze

public static org.apache.lucene.util.CharsRef analyze(org.apache.lucene.analysis.Analyzer analyzer,
                                                      java.lang.String text,
                                                      org.apache.lucene.util.CharsRef reuse)
                                               throws java.io.IOException

Sugar: analyzes the text with the analyzer and separates by SynonymMap.WORD_SEPARATOR. reuse and its chars must not be null.

Throws:

java.io.IOException

add

public void add(org.apache.lucene.util.CharsRef input,
                org.apache.lucene.util.CharsRef output,
                boolean includeOrig)

Add a phrase->phrase synonym mapping. Phrases are character sequences where words are separated with character zero (). Empty words (two s in a row) are not allowed in the input nor the output!

Parameters:

input - input phrase

output - output phrase

includeOrig - true if the original should be included

build

public SynonymMap build()
                 throws java.io.IOException

Builds an SynonymMap and returns it.

Throws:

java.io.IOException