```
public interface Morpheme
```
A morpheme.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`begin()`	Returns the start index of the morpheme.
`String`	`dictionaryForm()`	Returns the dictionary form of morpheme.
`int`	`end()`	Returns the offset after the last character of the morpheme.
`int`	`getDictionaryId()`	Returns the ID of the dicitionary containing the morpheme.
`int[]`	`getSynonymGroupIds()`	Returns the IDs of the synonym groups of the morpheme.
`int`	`getWordId()`	Returns the ID of the morpheme.
`boolean`	`isOOV()`	Returns whether the morpheme is out-of-vocabulary (OOV) or not.
`String`	`normalizedForm()`	Returns the normalized form of morpheme.
`List<String>`	`partOfSpeech()`	Returns the part of speech of the morpheme.
`short`	`partOfSpeechId()`	Returns the ID of part of speech of the morpheme.
`String`	`readingForm()`	Returns the reading form of morpheme.
`List<Morpheme>`	`split(Tokenizer.SplitMode mode)`	Split the morpheme in another splitting mode.
`String`	`surface()`	Returns the text of morpheme.

- Method Detail
  - begin
```
int begin()
```
    Returns the start index of the morpheme. When the input text is normalized, some morphemes have the same start index.
    
    Returns:
    
    the index of first character of the morpheme
  - end
```
int end()
```
    Returns the offset after the last character of the morpheme. When the input text is normalized, some morphemes have the same end index.
    
    Returns:
    
    the offset after the last character of the morpheme
  - surface
```
String surface()
```
    Returns the text of morpheme. When the input text is normalized, some morphemes have the same surface.
    
    Returns:
    
    the text of morpheme
  - partOfSpeech
```
List<String> partOfSpeech()
```
    Returns the part of speech of the morpheme.
    
    Returns:
    
    the part of speech of the morpheme
  - partOfSpeechId
```
short partOfSpeechId()
```
    Returns the ID of part of speech of the morpheme.
    
    Returns:
    
    the ID of part of speech of the morpheme
  - dictionaryForm
```
String dictionaryForm()
```
    Returns the dictionary form of morpheme. 'Dictionary form' means a word's lemma and '終止形' in Japanese.
    
    Returns:
    
    the dictionary form of morpheme
  - normalizedForm
```
String normalizedForm()
```
    Returns the normalized form of morpheme. This method returns the form normalizing inconsistent spellings and inflected forms.
    
    Returns:
    
    the normalized form of morpheme
  - readingForm
```
String readingForm()
```
    Returns the reading form of morpheme. This method returns Japanese syllabaries 'フリガナ' in katakana. If the morpheme is OOV, it returns a empty string.
    
    Returns:
    
    the reading form of morpheme.
  - split
```
List<Morpheme> split(Tokenizer.SplitMode mode)
```
    Split the morpheme in another splitting mode. If mode is the same with using in Tokenizer.tokenize(Tokenizer.SplitMode,String) or no more splitting, this method returns this.
    
    Parameters:
    
    mode - a mode of splitting
    
    Returns:
    
    the list of splitted morphemes
    
    See Also:
    
    Tokenizer.tokenize(Tokenizer.SplitMode,String)
  - isOOV
```
boolean isOOV()
```
    Returns whether the morpheme is out-of-vocabulary (OOV) or not.
    
    Returns:
    
    true if, and only if the morpheme is OOV
  - getWordId
```
int getWordId()
```
    Returns the ID of the morpheme. The IDs change when the dictionaries are updated or the combination of dictionaries changes. If the morpheme is OOV, it returns an undefined value.
    
    Returns:
    
    the word ID
  - getDictionaryId
```
int getDictionaryId()
```
    Returns the ID of the dicitionary containing the morpheme. If the morpheme is in the system dictionary, it returns 0. If the morpheme is OOV, it returns a negative value.
    
    Returns:
    
    the dictionary ID
  - getSynonymGroupIds
```
int[] getSynonymGroupIds()
```
    Returns the IDs of the synonym groups of the morpheme. If the morpheme has synonyms, it returns IDs of the sysnonym groups.
    
    Returns:
    
    the array of synonym group IDs

Interface Morpheme

Method Summary

Method Detail

begin

end

surface

partOfSpeech

partOfSpeechId

dictionaryForm

normalizedForm

readingForm

split

isOOV

getWordId

getDictionaryId

getSynonymGroupIds