Package org.apache.cassandra.dht

Class Murmur3Partitioner.LongToken

java.lang.Object

org.apache.cassandra.dht.Token

org.apache.cassandra.dht.Murmur3Partitioner.LongToken

All Implemented Interfaces:

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

Enclosing class:

Murmur3Partitioner

public static class Murmur3Partitioner.LongToken
extends Token

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.dht.Token

Token.KeyBound, Token.TokenFactory, Token.TokenSerializer

Field Summary

Fields

Modifier and Type	Field	Description
long	token

Fields inherited from class org.apache.cassandra.dht.Token

serializer

Constructor Summary

Constructors

Constructor	Description
LongToken(long token)

Method Summary

Modifier and Type	Method	Description
int	compareTo(Token o)
Murmur3Partitioner.LongToken	decreaseSlightly()
boolean	equals(java.lang.Object obj)
long	getHeapSize()
IPartitioner	getPartitioner()
java.lang.Object	getTokenValue()
int	hashCode()
Murmur3Partitioner.LongToken	increaseSlightly()	Returns a token that is slightly greater than this.
static java.nio.ByteBuffer	keyForToken(long token)
static java.nio.ByteBuffer	keyForToken(Murmur3Partitioner.LongToken token)	Reverses murmur3 to find a possible 16 byte key that generates a given token
double	size(Token next)	Returns a measure for the token space covered between this token and next.
java.lang.String	toString()

Methods inherited from class org.apache.cassandra.dht.Token

getToken, isMinimum, maxKeyBound, minKeyBound, minValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

token

public final long token

Constructor Detail

LongToken

public LongToken(long token)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

compareTo

public int compareTo(Token o)

getPartitioner

public IPartitioner getPartitioner()

Specified by:

getPartitioner in interface RingPosition<Token>

Specified by:

getPartitioner in class Token

getHeapSize

public long getHeapSize()

Specified by:

getHeapSize in class Token

getTokenValue

public java.lang.Object getTokenValue()

Specified by:

getTokenValue in class Token

size

public double size(Token next)

Description copied from class: Token

Returns a measure for the token space covered between this token and next. Used by the token allocation algorithm (see CASSANDRA-7032).

Specified by:

size in class Token

increaseSlightly

public Murmur3Partitioner.LongToken increaseSlightly()

Description copied from class: Token

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.

Specified by:

increaseSlightly in class Token

decreaseSlightly

public Murmur3Partitioner.LongToken decreaseSlightly()

keyForToken

public static java.nio.ByteBuffer keyForToken(long token)

keyForToken

public static java.nio.ByteBuffer keyForToken(Murmur3Partitioner.LongToken token)

Reverses murmur3 to find a possible 16 byte key that generates a given token