org.neo4j.causalclustering.core.consensus.log

Class MonitoredRaftLog

java.lang.Object

org.neo4j.causalclustering.core.consensus.log.DelegatingRaftLog

org.neo4j.causalclustering.core.consensus.log.MonitoredRaftLog

All Implemented Interfaces:

RaftLog, ReadableRaftLog

public class MonitoredRaftLog
extends DelegatingRaftLog

Field Summary

Fields inherited from interface org.neo4j.causalclustering.core.consensus.log.RaftLog

PHYSICAL_LOG_DIRECTORY_NAME

Constructor Summary

Constructors

Constructor and Description
MonitoredRaftLog(RaftLog delegate, org.neo4j.kernel.monitoring.Monitors monitors)

Method Summary

Modifier and Type	Method and Description
long	append(RaftLogEntry... entries) Appends entry to the end of the log.
void	truncate(long fromIndex) Truncates the log starting from the supplied index.

Methods inherited from class org.neo4j.causalclustering.core.consensus.log.DelegatingRaftLog

appendIndex, getEntryCursor, prevIndex, prune, readEntryTerm, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

MonitoredRaftLog

public MonitoredRaftLog(RaftLog delegate,
                        org.neo4j.kernel.monitoring.Monitors monitors)

Method Detail

append

public long append(RaftLogEntry... entries)
            throws IOException

Description copied from interface: RaftLog

Appends entry to the end of the log. The first log index is 0.

The entries must be uniquely identifiable and already appended entries must not be re-appended (unless they have been removed through truncation).

Specified by:

append in interface RaftLog

Overrides:

append in class DelegatingRaftLog

Parameters:

entries - The log entry.

Returns:

the index at which the entry was appended.

Throws:

IOException

truncate

public void truncate(long fromIndex)
              throws IOException

Description copied from interface: RaftLog

Truncates the log starting from the supplied index. Committed entries can never be truncated.

Specified by:

truncate in interface RaftLog

Overrides:

truncate in class DelegatingRaftLog

Parameters:

fromIndex - The start index (inclusive).

Throws:

IOException