org.apache.activemq.kaha.impl.async

Class ReadOnlyDataFile

java.lang.Object

org.apache.activemq.util.LinkedNode

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

org.apache.activemq.kaha.impl.async.ReadOnlyDataFile

All Implemented Interfaces:

java.lang.Comparable<DataFile>

public class ReadOnlyDataFile
extends DataFile

Allows you to open a data file in read only mode. Useful when working with archived data files.

Field Summary

Fields inherited from class org.apache.activemq.kaha.impl.async.DataFile

dataFileId, file, length, preferedSize, referenceCount

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

next, prev, tail

Method Summary

Methods

Modifier and Type	Method and Description
void	closeRandomAccessFile(java.io.RandomAccessFile file)
boolean	delete()
void	move(java.io.File targetDirectory)
java.io.RandomAccessFile	openRandomAccessFile(boolean appender)

Methods inherited from class org.apache.activemq.kaha.impl.async.DataFile

compareTo, decrement, equals, getDataFileId, getLength, getReferenceCount, hashCode, increment, incrementLength, isUnused, setLength, 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

Method Detail

openRandomAccessFile

public java.io.RandomAccessFile openRandomAccessFile(boolean appender)
                                              throws java.io.IOException

Overrides:

openRandomAccessFile in class DataFile

Throws:

java.io.IOException

closeRandomAccessFile

public void closeRandomAccessFile(java.io.RandomAccessFile file)
                           throws java.io.IOException

Overrides:

closeRandomAccessFile in class DataFile

Throws:

java.io.IOException

delete

public boolean delete()
               throws java.io.IOException

Overrides:

delete in class DataFile

Throws:

java.io.IOException

move

public void move(java.io.File targetDirectory)
          throws java.io.IOException

Overrides:

move in class DataFile

Throws:

java.io.IOException