Package org.apache.iotdb.db.wal.buffer

Class WALSignalEntry

java.lang.Object

org.apache.iotdb.db.wal.buffer.WALEntry

org.apache.iotdb.db.wal.buffer.WALSignalEntry

All Implemented Interfaces:

SerializedSize

public class WALSignalEntry
extends WALEntry

This entry class provides a signal to help wal buffer dealing with some special cases

Field Summary

Fields inherited from class org.apache.iotdb.db.wal.buffer.WALEntry

memTableId, type, value, walFlushListener

Constructor Summary

Constructors

Constructor	Description
WALSignalEntry(WALEntryType signalType)
WALSignalEntry(WALEntryType signalType, boolean wait)

Method Summary

Modifier and Type	Method	Description
boolean	isSignal()
void	serialize(java.nio.ByteBuffer buffer)
void	serialize(IWALByteBufferView buffer)
int	serializedSize()	Calculate size after serialization.

Methods inherited from class org.apache.iotdb.db.wal.buffer.WALEntry

deserialize, deserializeForConsensus, equals, getMemTableId, getType, getValue, getWalFlushListener

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WALSignalEntry

public WALSignalEntry(WALEntryType signalType)

WALSignalEntry

public WALSignalEntry(WALEntryType signalType,
                      boolean wait)

Method Detail

serializedSize

public int serializedSize()

Description copied from interface: SerializedSize

Calculate size after serialization.

Returns:

bytes number

serialize

public void serialize(IWALByteBufferView buffer)

Specified by:

serialize in class WALEntry

serialize

public void serialize(java.nio.ByteBuffer buffer)

isSignal

public boolean isSignal()

Specified by:

isSignal in class WALEntry