org.apache.activemq.kaha.impl.async

Class DataFile

java.lang.Object

org.apache.activemq.util.LinkedNode

org.apache.activemq.kaha.impl.async.DataFile

All Implemented Interfaces:

Comparable<DataFile>

Direct Known Subclasses:

ReadOnlyDataFile

public class DataFile
extends LinkedNode
implements Comparable<DataFile>

DataFile

Field Summary

Fields

Modifier and Type	Field and Description
protected Integer	dataFileId
protected File	file
protected int	length
protected int	preferedSize
protected int	referenceCount

Fields inherited from class org.apache.activemq.util.LinkedNode

next, prev, tail

Method Summary

Methods

Modifier and Type	Method and Description
void	closeRandomAccessFile(RandomAccessFile file)
int	compareTo(DataFile df)
int	decrement()
boolean	delete()
boolean	equals(Object o)
Integer	getDataFileId()
int	getLength()
int	getReferenceCount()
int	hashCode()
int	increment()
void	incrementLength(int size)
boolean	isUnused()
void	move(File targetDirectory)
RandomAccessFile	openRandomAccessFile(boolean appender)
void	setLength(int length)
String	toString()

Methods inherited from class org.apache.activemq.util.LinkedNode

getHeadNode, getNext, getPrevious, getTailNode, isHeadNode, isTailNode, linkAfter, linkBefore, reset, unlink

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

file

protected final File file

dataFileId

protected final Integer dataFileId

preferedSize

protected final int preferedSize

length

protected int length

referenceCount

protected int referenceCount

Method Detail

getDataFileId

public Integer getDataFileId()

getLength

public int getLength()

setLength

public void setLength(int length)

incrementLength

public void incrementLength(int size)

increment

public int increment()

decrement

public int decrement()

getReferenceCount

public int getReferenceCount()

isUnused

public boolean isUnused()

toString

public String toString()

Overrides:

toString in class Object

openRandomAccessFile

public RandomAccessFile openRandomAccessFile(boolean appender)
                                      throws IOException

Throws:

IOException

closeRandomAccessFile

public void closeRandomAccessFile(RandomAccessFile file)
                           throws IOException

Throws:

IOException

delete

public boolean delete()
               throws IOException

Throws:

IOException

move

public void move(File targetDirectory)
          throws IOException

Throws:

IOException

compareTo

public int compareTo(DataFile df)

Specified by:

compareTo in interface Comparable<DataFile>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object