org.apache.ignite.internal.processors.cache.mvcc

Interface MvccVersion

All Superinterfaces:

Comparable<MvccVersion>

All Known Subinterfaces:

MvccSnapshot

All Known Implementing Classes:

MvccSnapshotResponse, MvccSnapshotWithoutTxs, MvccVersionImpl

public interface MvccVersion
extends Comparable<MvccVersion>

MVCC version. This is unique version allowing to order all reads and writes within a cluster. Consists of two parts: - coordinator version - number which increases on every coordinator change; - counter - local coordinator counter which is increased on every update.

Method Summary

Modifier and Type	Method and Description
default int	compareTo(@NotNull MvccVersion another)
long	coordinatorVersion()
long	counter()
int	operationCounter()

Method Detail

coordinatorVersion

long coordinatorVersion()

Returns:

Coordinator version.

counter

long counter()

Returns:

Local counter.

operationCounter

int operationCounter()

Returns:

Operation id in scope of current transaction.

compareTo

default int compareTo(@NotNull
                      @NotNull MvccVersion another)

Specified by:

compareTo in interface Comparable<MvccVersion>