Package org.apache.lucene.analysis.miscellaneous

# Class HyphenatedWordsFilter

java.lang.Object
org.apache.lucene.util.AttributeSource
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.miscellaneous.HyphenatedWordsFilter

All Implemented Interfaces:
  `Closeable`, `AutoCloseable`, `Unwrappable<TokenStream>`

public final class HyphenatedWordsFilter extends TokenFilter
When the plain text is extracted from documents, we will often have many words hyphenated and broken into two lines. This is often the case with documents where narrow text columns are used, such as newsletters. In order to increase search efficiency, this filter puts hyphenated words broken into two lines back together. This filter should be used on indexing time only. Example field definition in schema.xml:

     <fieldtype name="text" class="solr.TextField" positionIncrementGap="100">
      <analyzer type="index">
        <tokenizer class="solr.WhitespaceTokenizerFactory"/>
          <filter class="solr.SynonymFilterFactory" synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
          <filter class="solr.StopFilterFactory" ignoreCase="true"/>
          <filter class="solr.HyphenatedWordsFilterFactory"/>
          <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0"/>
          <filter class="solr.LowerCaseFilterFactory"/>
          <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
      </analyzer>
      <analyzer type="query">
          <tokenizer class="solr.WhitespaceTokenizerFactory"/>
          <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
          <filter class="solr.StopFilterFactory" ignoreCase="true"/>
          <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0"/>
          <filter class="solr.LowerCaseFilterFactory"/>
          <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
      </analyzer>
     </fieldtype>

## Nested Class Summary

## Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

`AttributeSource.State`

## Field Summary

### Fields inherited from class org.apache.lucene.analysis.TokenFilter

`input`

### Fields inherited from class org.apache.lucene.analysis.TokenStream

`DEFAULT_TOKEN_ATTRIBUTE_FACTORY`

## Constructor Summary

Constructors
Constructor
Description
`HyphenatedWordsFilter(TokenStream in)`
Creates a new HyphenatedWordsFilter

## Method Summary

Modifier and Type
Method
Description
`boolean`
`incrementToken()`
`void`
`reset()`

### Methods inherited from class org.apache.lucene.analysis.TokenFilter

`close, end, unwrap`

### Methods inherited from class org.apache.lucene.util.AttributeSource

`addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, endAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString`

### Methods inherited from class java.lang.Object

`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

## Constructor Details

### HyphenatedWordsFilter

public HyphenatedWordsFilter(TokenStream in)
Creates a new HyphenatedWordsFilter

Parameters:
  `in` - TokenStream that will be filtered

## Method Details

### incrementToken

public boolean incrementToken() throws IOException

Specified by:
  `incrementToken` in class `TokenStream`
Throws:
  `IOException`

### reset

public void reset() throws IOException

Overrides:
  `reset` in class `TokenFilter`
Throws:
  `IOException`