Module org.apache.lucene.analysis.nori

Package org.apache.lucene.analysis.ko.dict

Class UserDictionary

java.lang.Object

org.apache.lucene.analysis.ko.dict.UserDictionary

All Implemented Interfaces:

Dictionary

public final class UserDictionary
extends Object
implements Dictionary

Class for building a User Dictionary. This class allows for adding custom nouns (세종) or compounds (세종시 세종 시).

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.lucene.analysis.ko.dict.Dictionary

Dictionary.Morpheme

Field Summary

Fields

Modifier and Type	Field	Description
private final TokenInfoFST	fst
private static final short	LEFT_ID
private static final short	RIGHT_ID
private static final short	RIGHT_ID_F
private static final short	RIGHT_ID_T
private final short[]	rightIds
private final int[][]	segmentations
private static final int	WORD_COST

Constructor Summary

Constructors

Modifier	Constructor	Description
private	UserDictionary(List<String> entries)

Method Summary

Modifier and Type	Method	Description
TokenInfoFST	getFST()
int	getLeftId(int wordId)	Get left id of specified word
POS.Tag	getLeftPOS(int wordId)	Get the left POS.Tag of specfied word.
Dictionary.Morpheme[]	getMorphemes(int wordId, char[] surfaceForm, int off, int len)	Get the morphemes of specified word (e.g.
POS.Type	getPOSType(int wordId)	Get the POS.Type of specified word (morpheme, compound, inflect or pre-analysis)
String	getReading(int wordId)	Get the reading of specified word (mainly used for Hanja to Hangul conversion).
int	getRightId(int wordId)	Get right id of specified word
POS.Tag	getRightPOS(int wordId)	Get the right POS.Tag of specfied word.
int	getWordCost(int wordId)	Get word cost of specified word
List<Integer>	lookup(char[] chars, int off, int len)	Lookup words in text
static UserDictionary	open(Reader reader)

Methods inherited from class java.lang.Object

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

Field Details

fst

private final TokenInfoFST fst

WORD_COST

private static final int WORD_COST

See Also:

• Constant Field Values

LEFT_ID

private static final short LEFT_ID

See Also:

• Constant Field Values

RIGHT_ID

private static final short RIGHT_ID

See Also:

• Constant Field Values

RIGHT_ID_T

private static final short RIGHT_ID_T

See Also:

• Constant Field Values

RIGHT_ID_F

private static final short RIGHT_ID_F

See Also:

• Constant Field Values

segmentations

private final int[][] segmentations

rightIds

private final short[] rightIds

Constructor Details

UserDictionary

private UserDictionary(List<String> entries)
                throws IOException

Throws:

IOException

Method Details

open

public static UserDictionary open(Reader reader)
                           throws IOException

Throws:

IOException

getFST

public TokenInfoFST getFST()

getLeftId

public int getLeftId(int wordId)

Description copied from interface: Dictionary

Get left id of specified word

Specified by:

getLeftId in interface Dictionary

getRightId

public int getRightId(int wordId)

Description copied from interface: Dictionary

Get right id of specified word

Specified by:

getRightId in interface Dictionary

getWordCost

public int getWordCost(int wordId)

Description copied from interface: Dictionary

Get word cost of specified word

Specified by:

getWordCost in interface Dictionary

getPOSType

public POS.Type getPOSType(int wordId)

Description copied from interface: Dictionary

Get the POS.Type of specified word (morpheme, compound, inflect or pre-analysis)

Specified by:

getPOSType in interface Dictionary

getLeftPOS

public POS.Tag getLeftPOS(int wordId)

Description copied from interface: Dictionary

Get the left POS.Tag of specfied word.

For POS.Type.MORPHEME and POS.Type.COMPOUND the left and right POS are the same.

Specified by:

getLeftPOS in interface Dictionary

getRightPOS

public POS.Tag getRightPOS(int wordId)

Description copied from interface: Dictionary

Get the right POS.Tag of specfied word.

For POS.Type.MORPHEME and POS.Type.COMPOUND the left and right POS are the same.

Specified by:

getRightPOS in interface Dictionary

getReading

public String getReading(int wordId)

Description copied from interface: Dictionary

Get the reading of specified word (mainly used for Hanja to Hangul conversion).

Specified by:

getReading in interface Dictionary

getMorphemes

public Dictionary.Morpheme[] getMorphemes(int wordId,
 char[] surfaceForm,
 int off,
 int len)

Description copied from interface: Dictionary

Get the morphemes of specified word (e.g. 가깝으나: 가깝 + 으나).

Specified by:

getMorphemes in interface Dictionary

lookup

public List<Integer> 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

Throws:

IOException