org.apache.lucene.analysis.ja.dict

Class UserDictionary

java.lang.Object

org.apache.lucene.analysis.ja.dict.UserDictionary

All Implemented Interfaces:

Dictionary

public final class UserDictionary
extends Object
implements Dictionary

Class for building a User Dictionary. This class allows for custom segmentation of phrases.

Field Summary

Fields

Modifier and Type	Field and Description
static int	LEFT_ID
static int	RIGHT_ID
static int	WORD_COST

Fields inherited from interface org.apache.lucene.analysis.ja.dict.Dictionary

INTERNAL_SEPARATOR

Method Summary

Methods

Modifier and Type	Method and Description
String	getBaseForm(int wordId, char[] surface, int off, int len) Get base form of word
TokenInfoFST	getFST()
String	getInflectionForm(int wordId) Get inflection form of tokens
String	getInflectionType(int wordId) Get inflection type of tokens
int	getLeftId(int wordId) Get left id of specified word
String	getPartOfSpeech(int wordId) Get Part-Of-Speech of tokens
String	getPronunciation(int wordId, char[] surface, int off, int len) Get pronunciation of tokens
String	getReading(int wordId, char[] surface, int off, int len) Get reading of tokens
int	getRightId(int wordId) Get right id of specified word
int	getWordCost(int wordId) Get word cost of specified word
int[][]	lookup(char[] chars, int off, int len) Lookup words in text
int[]	lookupSegmentation(int phraseID)
static UserDictionary	open(Reader reader)

Methods inherited from class java.lang.Object

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

Field Detail

WORD_COST

public static final int WORD_COST

See Also:

Constant Field Values

LEFT_ID

public static final int LEFT_ID

See Also:

Constant Field Values

RIGHT_ID

public static final int RIGHT_ID

See Also:

Constant Field Values

Method Detail

open

public static UserDictionary open(Reader reader)
                           throws IOException

Throws:

IOException

lookup

public int[][] lookup(char[] chars,
             int off,
             int len)
               throws IOException

Lookup words in text

Parameters:

chars - text

off - offset into text

len - length of text

Returns:

array of {wordId, position, length}

Throws:

IOException

getFST

public TokenInfoFST getFST()

lookupSegmentation

public int[] lookupSegmentation(int phraseID)

getLeftId

public int getLeftId(int wordId)

Description copied from interface: Dictionary

Get left id of specified word

Specified by:

getLeftId in interface Dictionary

Returns:

left id

getRightId

public int getRightId(int wordId)

Description copied from interface: Dictionary

Get right id of specified word

Specified by:

getRightId in interface Dictionary

Returns:

right id

getWordCost

public int getWordCost(int wordId)

Description copied from interface: Dictionary

Get word cost of specified word

Specified by:

getWordCost in interface Dictionary

Returns:

word's cost

getReading

public String getReading(int wordId,
                char[] surface,
                int off,
                int len)

Description copied from interface: Dictionary

Get reading of tokens

Specified by:

getReading in interface Dictionary

Parameters:

wordId - word ID of token

Returns:

Reading of the token

getPartOfSpeech

public String getPartOfSpeech(int wordId)

Description copied from interface: Dictionary

Get Part-Of-Speech of tokens

Specified by:

getPartOfSpeech in interface Dictionary

Parameters:

wordId - word ID of token

Returns:

Part-Of-Speech of the token

getBaseForm

public String getBaseForm(int wordId,
                 char[] surface,
                 int off,
                 int len)

Description copied from interface: Dictionary

Get base form of word

Specified by:

getBaseForm in interface Dictionary

Parameters:

wordId - word ID of token

Returns:

Base form (only different for inflected words, otherwise null)

getPronunciation

public String getPronunciation(int wordId,
                      char[] surface,
                      int off,
                      int len)

Description copied from interface: Dictionary

Get pronunciation of tokens

Specified by:

getPronunciation in interface Dictionary

Parameters:

wordId - word ID of token

Returns:

Pronunciation of the token

getInflectionType

public String getInflectionType(int wordId)

Description copied from interface: Dictionary

Get inflection type of tokens

Specified by:

getInflectionType in interface Dictionary

Parameters:

wordId - word ID of token

Returns:

inflection type, or null

getInflectionForm

public String getInflectionForm(int wordId)

Description copied from interface: Dictionary

Get inflection form of tokens

Specified by:

getInflectionForm in interface Dictionary

Parameters:

wordId - word ID of token

Returns:

inflection form, or null