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## 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
`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`

Constructor Summary
`UserDictionary(Reader reader)`

Method Summary
`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)`

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

Constructor Detail

### UserDictionary

    public UserDictionary(Reader reader)
                   throws IOException

Throws:
  `IOException`

Method Detail

### 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

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