Token (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.dht.Token

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Token>, RingPosition<Token>

Direct Known Subclasses:

ByteOrderedPartitioner.BytesToken, LocalPartitioner.LocalToken, Murmur3Partitioner.LongToken, OrderPreservingPartitioner.StringToken, RandomPartitioner.BigIntegerToken
```
public abstract class Token
extends java.lang.Object
implements RingPosition<Token>, java.io.Serializable
```
See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Token.KeyBound

static class Token.TokenFactory

static class Token.TokenSerializer

Field Summary

Fields
Modifier and Type Field Description

static Token.TokenSerializer serializer

Constructor Summary

Constructors
Constructor Description

Token()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract long`	`getHeapSize()`
`abstract IPartitioner`	`getPartitioner()`
`Token`	`getToken()`
`abstract java.lang.Object`	`getTokenValue()`
`abstract Token`	`increaseSlightly()`	Returns a token that is slightly greater than this.
`boolean`	`isMinimum()`
`Token.KeyBound`	`maxKeyBound()`
`Token.KeyBound`	`minKeyBound()`
`Token`	`minValue()`
`abstract double`	`size(Token next)`	Returns a measure for the token space covered between this token and next.

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

Methods inherited from interface java.lang.Comparable
compareTo

- Field Detail
  - serializer
```
public static final Token.TokenSerializer serializer
```
- Constructor Detail
  - Token
```
public Token()
```
- Method Detail
  - getPartitioner
```
public abstract IPartitioner getPartitioner()
```
    Specified by:
    
    getPartitioner in interface RingPosition<Token>
  - getHeapSize
```
public abstract long getHeapSize()
```
  - getTokenValue
```
public abstract java.lang.Object getTokenValue()
```
  - size
```
public abstract double size(Token next)
```
    Returns a measure for the token space covered between this token and next. Used by the token allocation algorithm (see CASSANDRA-7032).
  - increaseSlightly
```
public abstract Token increaseSlightly()
```
    Returns a token that is slightly greater than this. Used to avoid clashes between nodes in separate datacentres trying to use the same token via the token allocation algorithm.
  - getToken
```
public Token getToken()
```
    Specified by:
    
    getToken in interface RingPosition<Token>
  - minValue
```
public Token minValue()
```
    Specified by:
    
    minValue in interface RingPosition<Token>
  - isMinimum
```
public boolean isMinimum()
```
    Specified by:
    
    isMinimum in interface RingPosition<Token>
  - minKeyBound
```
public Token.KeyBound minKeyBound()
```
  - maxKeyBound
```
public Token.KeyBound maxKeyBound()
```