Package org.apache.activemq.store.kahadb.disk.journal

Class ReadOnlyDataFile

java.lang.Object

org.apache.activemq.store.kahadb.disk.util.LinkedNode<DataFile>

org.apache.activemq.store.kahadb.disk.journal.DataFile

org.apache.activemq.store.kahadb.disk.journal.ReadOnlyDataFile

All Implemented Interfaces:

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.store.kahadb.disk.journal.DataFile

appendRandomAccessFile, corruptedBlocks, dataFileId, file, length, STANDARD_LOG_FILE, typeCode

Fields inherited from class org.apache.activemq.store.kahadb.disk.util.LinkedNode

list, next, prev

Method Summary

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

Methods inherited from class org.apache.activemq.store.kahadb.disk.journal.DataFile

appendRandomAccessFile, closeRandomAccessFile, compareTo, decrementLength, equals, getCorruptedBlocks, getDataFileId, getFile, getLength, getTypeCode, hashCode, incrementLength, openRandomAccessFile, setLength, setTypeCode, toString

Methods inherited from class org.apache.activemq.store.kahadb.disk.util.LinkedNode

getHeadNode, getList, getNext, getNextCircular, getPrevious, getPreviousCircular, getTailNode, isHeadNode, isLinked, isTailNode, linkAfter, linkAfter, linkBefore, linkBefore, linkToHead, linkToTail, splitAfter, splitBefore, unlink

Methods inherited from class java.lang.Object

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

Method Details

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

Overrides:

delete in class DataFile

Throws:

IOException

move

public void move(File targetDirectory)
          throws IOException

Overrides:

move in class DataFile

Throws:

IOException