org.neo4j.causalclustering.core.consensus.log

Interface ReadableRaftLog

All Known Subinterfaces:

RaftLog

All Known Implementing Classes:

DelegatingRaftLog, InMemoryRaftLog, MonitoredRaftLog, SegmentedRaftLog

public interface ReadableRaftLog

Method Summary

Modifier and Type	Method and Description
long	appendIndex()
RaftLogCursor	getEntryCursor(long fromIndex) Returns a RaftLogCursor of RaftLogEntrys from the specified index until the end of the log
long	prevIndex()
long	readEntryTerm(long logIndex) Reads the term associated with the entry at the supplied index.

Method Detail

appendIndex

long appendIndex()

Returns:

The index of the last appended entry.

prevIndex

long prevIndex()

Returns:

The index immediately preceding entries in the log.

readEntryTerm

long readEntryTerm(long logIndex)
            throws IOException

Reads the term associated with the entry at the supplied index.

Parameters:

logIndex - The index of the log entry.

Returns:

The term of the entry, or -1 if the entry does not exist

Throws:

IOException

getEntryCursor

RaftLogCursor getEntryCursor(long fromIndex)
                      throws IOException

Returns a RaftLogCursor of RaftLogEntrys from the specified index until the end of the log

Parameters:

fromIndex - The log index at which the cursor should be positioned

Throws:

IOException