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

Class StoreExtendOperation

java.lang.Object

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

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

public final class StoreExtendOperation
extends AbstractJournalOperation

StoreExtendOperation

Field Summary

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
StoreExtendOperation(long transactionId, int blockSize, int oldBlockCount, int newBlockCount) Constructor

Method Summary

Modifier and Type	Method and Description
protected int	extend(RandomAccessFile allocationTableRandomAccessFile, RandomAccessFile dataRandomAccessFile)
int	getBlockSize()
int	getNewBlockCount()
int	getOldBlockCount()
int	size() The storage size for this operation
String	toString()
protected void	writeTo(JournalFile journalFile) Write the operation to the given journal file

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

StoreExtendOperation

public StoreExtendOperation(long transactionId,
                            int blockSize,
                            int oldBlockCount,
                            int newBlockCount)

Constructor

Method Detail

getBlockSize

public int getBlockSize()

Returns:

the blockSize

getOldBlockCount

public int getOldBlockCount()

Returns:

the oldBlockCount

getNewBlockCount

public int getNewBlockCount()

Returns:

the newBlockCount

size

public int size()

Description copied from class: AbstractJournalOperation

The storage size for this operation

Overrides:

size in class AbstractJournalOperation

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 AbstractJournalOperation

Parameters:

journalFile - teh journal file

Throws:

JournalException

extend

protected int extend(RandomAccessFile allocationTableRandomAccessFile,
                     RandomAccessFile dataRandomAccessFile)
              throws JournalException

Throws:

JournalException

toString

public String toString()

Overrides:

toString in class AbstractJournalOperation