IndonesianStemmer

java.lang.Object
- org.apache.lucene.analysis.id.IndonesianStemmer

```
public class IndonesianStemmer
extends java.lang.Object
```
Stemmer for Indonesian.
Stems Indonesian words with the algorithm presented in: A Study of Stemming Effects on Information Retrieval in Bahasa Indonesia, Fadillah Z Tala. http://www.illc.uva.nl/Publications/ResearchReports/MoL-2003-02.text.pdf

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`flags`
`private int`	`numSyllables`
`private static int`	`REMOVED_BER`
`private static int`	`REMOVED_DI`
`private static int`	`REMOVED_KE`
`private static int`	`REMOVED_MENG`
`private static int`	`REMOVED_PE`
`private static int`	`REMOVED_PENG`
`private static int`	`REMOVED_TER`

Constructor Summary

Constructors
Constructor Description

IndonesianStemmer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private boolean`	`isVowel(char ch)`
`private int`	`removeFirstOrderPrefix(char[] text, int length)`
`private int`	`removeParticle(char[] text, int length)`
`private int`	`removePossessivePronoun(char[] text, int length)`
`private int`	`removeSecondOrderPrefix(char[] text, int length)`
`private int`	`removeSuffix(char[] text, int length)`
`int`	`stem(char[] text, int length, boolean stemDerivational)`	Stem a term (returning its new length).
`private int`	`stemDerivational(char[] text, int length)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- numSyllables
```
private int numSyllables
```
- flags
```
private int flags
```
- REMOVED_KE
```
private static final int REMOVED_KE
```
  See Also:
  
  Constant Field Values
- REMOVED_PENG
```
private static final int REMOVED_PENG
```
  See Also:
  
  Constant Field Values
- REMOVED_DI
```
private static final int REMOVED_DI
```
  See Also:
  
  Constant Field Values
- REMOVED_MENG
```
private static final int REMOVED_MENG
```
  See Also:
  
  Constant Field Values
- REMOVED_TER
```
private static final int REMOVED_TER
```
  See Also:
  
  Constant Field Values
- REMOVED_BER
```
private static final int REMOVED_BER
```
  See Also:
  
  Constant Field Values
- REMOVED_PE
```
private static final int REMOVED_PE
```
  See Also:
  
  Constant Field Values

Constructor Detail
- IndonesianStemmer
```
public IndonesianStemmer()
```

Method Detail

stem
```
public int stem(char[] text,
                int length,
                boolean stemDerivational)
```
Stem a term (returning its new length).
Use stemDerivational to control whether full stemming or only light inflectional stemming is done.

stemDerivational

private int stemDerivational(char[] text,
                             int length)

isVowel
```
private boolean isVowel(char ch)
```

removeParticle

private int removeParticle(char[] text,
                           int length)

removePossessivePronoun

private int removePossessivePronoun(char[] text,
                                    int length)

removeFirstOrderPrefix

private int removeFirstOrderPrefix(char[] text,
                                   int length)

removeSecondOrderPrefix

private int removeSecondOrderPrefix(char[] text,
                                    int length)

removeSuffix

private int removeSuffix(char[] text,
                         int length)