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

Class JournalFile

java.lang.Object

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

public final class JournalFile
extends Object

JournalFile

Field Summary

Fields

Modifier and Type	Field	Description
static String	RECYCLED_SUFFIX
static String	SUFFIX

Constructor Summary

Constructors

Constructor	Description
JournalFile(int index, String baseName, File dataFolder, long maxJournalSize, int writeBufferSize, int storageSyncMethod, boolean preAllocateFiles)	Constructor (new file)
JournalFile(int index, String baseName, File dataFolder, File recycledFile, int writeBufferSize, int storageSyncMethod)	Constructor (recycled file)

Method Summary

Modifier and Type	Method	Description
void	close()
void	closeAndDelete()	Close and delete the journal file
File	closeAndRecycle()	Close and recycle the journal file
protected void	complete()
long	getLastTransactionId()
boolean	isComplete()
void	setLastTransactionId(long lastTransactionId)
long	size()
protected void	sync()	Force file content sync to disk
String	toString()
void	write(byte[] data)
void	writeByte(int v)
void	writeInt(int v)
void	writeLong(long v)

Methods inherited from class java.lang.Object

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

Field Detail

SUFFIX

public static final String SUFFIX

See Also:

Constant Field Values

RECYCLED_SUFFIX

public static final String RECYCLED_SUFFIX

See Also:

Constant Field Values

Constructor Detail

JournalFile

public JournalFile(int index,
                   String baseName,
                   File dataFolder,
                   long maxJournalSize,
                   int writeBufferSize,
                   int storageSyncMethod,
                   boolean preAllocateFiles)
            throws JournalException

Constructor (new file)

Throws:

JournalException

JournalFile

public JournalFile(int index,
                   String baseName,
                   File dataFolder,
                   File recycledFile,
                   int writeBufferSize,
                   int storageSyncMethod)
            throws JournalException

Constructor (recycled file)

Throws:

JournalException

Method Detail

sync

protected void sync()
             throws JournalException

Force file content sync to disk

Throws:

JournalException

complete

protected void complete()
                 throws JournalException

Throws:

JournalException

write

public void write(byte[] data)
           throws JournalException

Throws:

JournalException

writeByte

public void writeByte(int v)
               throws JournalException

Throws:

JournalException

writeInt

public void writeInt(int v)
              throws JournalException

Throws:

JournalException

writeLong

public void writeLong(long v)
               throws JournalException

Throws:

JournalException

size

public long size()

isComplete

public boolean isComplete()

Returns:

the complete

setLastTransactionId

public void setLastTransactionId(long lastTransactionId)

Parameters:

lastTransactionId - the lastTransactionId to set

getLastTransactionId

public long getLastTransactionId()

Returns:

the lastTransactionId

closeAndDelete

public void closeAndDelete()
                    throws JournalException

Close and delete the journal file

Throws:

JournalException

closeAndRecycle

public File closeAndRecycle()
                     throws JournalException

Close and recycle the journal file

Throws:

JournalException

close

public void close()
           throws JournalException

Throws:

JournalException

toString

public String toString()

Overrides:

toString in class Object