java.lang.Object
- org.apache.lucene.util.AttributeImpl
- - org.apache.lucene.analysis.tokenattributes.KeywordAttributeImpl

All Implemented Interfaces:

Serializable, Cloneable, KeywordAttribute, Attribute
```
public final class KeywordAttributeImpl
extends AttributeImpl
implements KeywordAttribute
```
This attribute can be used to mark a token as a keyword. Keyword aware TokenStreams can decide to modify a token based on the return value of isKeyword() if the token is modified. Stemming filters for instance can use this attribute to conditionally skip a term if isKeyword() returns true.

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.apache.lucene.util.AttributeImpl
  enableBackwards

Constructor Summary

Constructors
Constructor Description

KeywordAttributeImpl()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Clears the values in this AttributeImpl and resets it to its default value.
`void`	`copyTo(AttributeImpl target)`	Copies the values from this Attribute into the passed-in target attribute.
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`boolean`	`isKeyword()`	Returns `true` iff the current token is a keyword, otherwise `false`/
`void`	`setKeyword(boolean isKeyword)`	Marks the current token as keyword iff set to `true`.

Methods inherited from class org.apache.lucene.util.AttributeImpl
clone, reflectAsString, reflectWith, toString

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - KeywordAttributeImpl
```
public KeywordAttributeImpl()
```
- Method Detail
  - clear
```
public void clear()
```
    Description copied from class: AttributeImpl
    
    Clears the values in this AttributeImpl and resets it to its default value. If this implementation implements more than one Attribute interface it clears all.
    
    Specified by:
    
    clear in class AttributeImpl
  - copyTo
```
public void copyTo(AttributeImpl target)
```
    Description copied from class: AttributeImpl
    
    Copies the values from this Attribute into the passed-in target attribute. The target implementation must support all the Attributes this implementation supports.
    
    Specified by:
    
    copyTo in class AttributeImpl
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - isKeyword
```
public boolean isKeyword()
```
    Returns true iff the current token is a keyword, otherwise false/
    
    Specified by:
    
    isKeyword in interface KeywordAttribute
    
    Returns:
    
    true iff the current token is a keyword, otherwise false/
  - setKeyword
```
public void setKeyword(boolean isKeyword)
```
    Marks the current token as keyword iff set to true.
    
    Specified by:
    
    setKeyword in interface KeywordAttribute
    
    Parameters:
    
    isKeyword - true iff the current token is a keyword, otherwise false.

Class KeywordAttributeImpl

Field Summary

Fields inherited from class org.apache.lucene.util.AttributeImpl

Constructor Summary

Method Summary

Methods inherited from class org.apache.lucene.util.AttributeImpl

Methods inherited from class java.lang.Object

Constructor Detail

KeywordAttributeImpl

Method Detail

clear

copyTo

hashCode

equals

isKeyword

setKeyword