net.timewalker.ffmq4.storage.data.impl.journal

Class DataBlockWriteOperation

java.lang.Object

net.timewalker.ffmq4.storage.data.impl.journal.AbstractJournalOperation

net.timewalker.ffmq4.storage.data.impl.journal.AbstractJournalWriteOperation

net.timewalker.ffmq4.storage.data.impl.journal.DataBlockWriteOperation

public final class DataBlockWriteOperation
extends AbstractJournalWriteOperation

DataBlockWriteOperation

Field Summary

Fields inherited from class net.timewalker.ffmq4.storage.data.impl.journal.AbstractJournalWriteOperation

offset

Fields inherited from class net.timewalker.ffmq4.storage.data.impl.journal.AbstractJournalOperation

TYPE_COMMIT, TYPE_DATA_BLOCK_WRITE, TYPE_META_DATA_BLOCK_WRITE, TYPE_META_DATA_WRITE, TYPE_STORE_EXTEND

Constructor Summary

Constructors

Constructor and Description
DataBlockWriteOperation(long transactionId, int blockIndex, long blockOffset, byte[] blockData) Constructor

Method Summary

Modifier and Type	Method and Description
byte[]	getBlockData()
int	getBlockIndex()
int	size() The storage size for this operation
String	toString()
protected void	writeTo(JournalFile journalFile) Write the operation to the given journal file
protected int	writeTo(RandomAccessFile dataRandomAccessFile)

Methods inherited from class net.timewalker.ffmq4.storage.data.impl.journal.AbstractJournalWriteOperation

getOffset

Methods inherited from class net.timewalker.ffmq4.storage.data.impl.journal.AbstractJournalOperation

getTransactionId, getType, next, setNext

Methods inherited from class java.lang.Object

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

Constructor Detail

DataBlockWriteOperation

public DataBlockWriteOperation(long transactionId,
                               int blockIndex,
                               long blockOffset,
                               byte[] blockData)

Constructor

Method Detail

getBlockIndex

public int getBlockIndex()

Returns:

the blockIndex

getBlockData

public byte[] getBlockData()

Returns:

the blockData

size

public int size()

Description copied from class: AbstractJournalOperation

The storage size for this operation

Overrides:

size in class AbstractJournalWriteOperation

writeTo

protected void writeTo(JournalFile journalFile)
                throws JournalException

Description copied from class: AbstractJournalOperation

Write the operation to the given journal file

Overrides:

writeTo in class AbstractJournalWriteOperation

Parameters:

journalFile - teh journal file

Throws:

JournalException

writeTo

protected int writeTo(RandomAccessFile dataRandomAccessFile)
               throws JournalException

Throws:

JournalException

toString

public String toString()

Overrides:

toString in class AbstractJournalWriteOperation