com.facebook.presto.cassandra

Class RandomPartitionerTokenRing

java.lang.Object

com.facebook.presto.cassandra.RandomPartitionerTokenRing

All Implemented Interfaces:

TokenRing

public final class RandomPartitionerTokenRing
extends Object
implements TokenRing

Field Summary

Fields

Modifier and Type	Field and Description
static RandomPartitionerTokenRing	INSTANCE

Method Summary

Modifier and Type	Method and Description
double	getRingFraction(String start, String end) Returns ring fraction (value between 0 and 1) represented by the token range
BigInteger	getTokenCountInRange(String startToken, String endToken) Returns token count in a given range

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.facebook.presto.cassandra.TokenRing

createForPartitioner

Field Detail

INSTANCE

public static final RandomPartitionerTokenRing INSTANCE

Method Detail

getRingFraction

public double getRingFraction(String start,
                              String end)

Description copied from interface: TokenRing

Returns ring fraction (value between 0 and 1) represented by the token range

Specified by:

getRingFraction in interface TokenRing

Parameters:

start - exclusive

end - inclusive

getTokenCountInRange

public BigInteger getTokenCountInRange(String startToken,
                                       String endToken)

Description copied from interface: TokenRing

Returns token count in a given range

Specified by:

getTokenCountInRange in interface TokenRing