com.facebook.presto.cassandra

Interface TokenRing

All Known Implementing Classes:

Murmur3PartitionerTokenRing, RandomPartitionerTokenRing

public interface TokenRing

Method Summary

Modifier and Type	Method and Description
static Optional<TokenRing>	createForPartitioner(String partitioner)
double	getRingFraction(String startToken, String endToken) 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

Method Detail

getRingFraction

double getRingFraction(String startToken,
                       String endToken)

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

Parameters:

startToken - exclusive

endToken - inclusive

getTokenCountInRange

BigInteger getTokenCountInRange(String startToken,
                                String endToken)

Returns token count in a given range

createForPartitioner

static Optional<TokenRing> createForPartitioner(String partitioner)