org.corfudb.protocols.wireprotocol

Interface IToken

All Known Implementing Classes:

Token, TokenResponse

public interface IToken

Represents a token, which is a reservation on the log.

Clients must obtain a token to write to the log using the normal writing protocol.

Created by mwei on 4/14/17.

Method Summary

Modifier and Type	Method and Description
default Map<UUID,Long>	getBackpointerMap() Get the backpointer map, if it was available.
long	getEpoch() Get the epoch of the token, which represents the epoch the token is valid in.
long	getSequence() The value of the token, which represents the global address on the log the token is for.

Method Detail

getSequence

long getSequence()

The value of the token, which represents the global address on the log the token is for.

Returns:

The value of the token.

getEpoch

long getEpoch()

Get the epoch of the token, which represents the epoch the token is valid in.

Returns:

The token's epoch.

getBackpointerMap

default Map<UUID,Long> getBackpointerMap()

Get the backpointer map, if it was available.

Returns:

A map of backpointers for the streams in the log. Also represents the streams this token is valid for.