org.apache.solr.spelling

Class ConjunctionSolrSpellChecker

java.lang.Object

org.apache.solr.spelling.SolrSpellChecker

org.apache.solr.spelling.ConjunctionSolrSpellChecker

public class ConjunctionSolrSpellChecker
extends SolrSpellChecker

This class lets a query be run through multiple spell checkers. The initial use-case is to use WordBreakSolrSpellChecker in conjunction with a "standard" spell checker (such as DirectSolrSpellChecker

Field Summary

Fields inherited from class org.apache.solr.spelling.SolrSpellChecker

analyzer, DEFAULT_DICTIONARY_NAME, DICTIONARY_NAME, field, FIELD, FIELD_TYPE, fieldTypeName, name

Constructor Summary

Constructors

Constructor and Description
ConjunctionSolrSpellChecker()

Method Summary

Methods

Modifier and Type	Method and Description
void	addChecker(SolrSpellChecker checker)
void	build(SolrCore core, SolrIndexSearcher searcher) (re)Builds the spelling index.
protected float	getAccuracy() Get the value of SpellingParams.SPELLCHECK_ACCURACY if supported.
String	getDictionaryName()
Analyzer	getQueryAnalyzer()
protected StringDistance	getStringDistance() Get the distance implementation used by this spellchecker, or NULL if not applicable.
SpellingResult	getSuggestions(SpellingOptions options) Get suggestions for the given query.
String	init(NamedList config, SolrCore core)
boolean	isSuggestionsMayOverlap()
SpellingResult	mergeSuggestions(SpellCheckMergeData mergeData, int numSug, int count, boolean extendedResults) Integrate spelling suggestions from the various shards in a distributed environment.
void	reload(SolrCore core, SolrIndexSearcher searcher) Reloads the index.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConjunctionSolrSpellChecker

public ConjunctionSolrSpellChecker()

Method Detail

addChecker

public void addChecker(SolrSpellChecker checker)

init

public String init(NamedList config,
          SolrCore core)

Overrides:

init in class SolrSpellChecker

build

public void build(SolrCore core,
         SolrIndexSearcher searcher)
           throws IOException

Description copied from class: SolrSpellChecker

(re)Builds the spelling index. May be a NOOP if the implementation doesn't require building, or can't be rebuilt.

Specified by:

build in class SolrSpellChecker

Throws:

IOException

getSuggestions

public SpellingResult getSuggestions(SpellingOptions options)
                              throws IOException

Description copied from class: SolrSpellChecker

Get suggestions for the given query. Tokenizes the query using a field appropriate Analyzer. The SpellingResult.getSuggestions() suggestions must be ordered by best suggestion first.

Specified by:

getSuggestions in class SolrSpellChecker

Parameters:

options - The SpellingOptions to use

Returns:

The SpellingResult suggestions

Throws:

IOException - if there is an error producing suggestions

mergeSuggestions

public SpellingResult mergeSuggestions(SpellCheckMergeData mergeData,
                              int numSug,
                              int count,
                              boolean extendedResults)

Description copied from class: SolrSpellChecker

Integrate spelling suggestions from the various shards in a distributed environment.

Overrides:

mergeSuggestions in class SolrSpellChecker

reload

public void reload(SolrCore core,
          SolrIndexSearcher searcher)
            throws IOException

Description copied from class: SolrSpellChecker

Reloads the index. Useful if an external process is responsible for building the spell checker.

Specified by:

reload in class SolrSpellChecker

Throws:

IOException - If there is a low-level I/O error.

getQueryAnalyzer

public Analyzer getQueryAnalyzer()

Overrides:

getQueryAnalyzer in class SolrSpellChecker

getDictionaryName

public String getDictionaryName()

Overrides:

getDictionaryName in class SolrSpellChecker

getAccuracy

protected float getAccuracy()

Description copied from class: SolrSpellChecker

Get the value of SpellingParams.SPELLCHECK_ACCURACY if supported. Otherwise throws UnsupportedOperationException.

Overrides:

getAccuracy in class SolrSpellChecker

getStringDistance

protected StringDistance getStringDistance()

Description copied from class: SolrSpellChecker

Get the distance implementation used by this spellchecker, or NULL if not applicable.

Overrides:

getStringDistance in class SolrSpellChecker

isSuggestionsMayOverlap

public boolean isSuggestionsMayOverlap()

Overrides:

isSuggestionsMayOverlap in class SolrSpellChecker