org.apache.jackrabbit.core.journal
Class FileRevision

java.lang.Object
  org.apache.jackrabbit.core.journal.FileRevision

All Implemented Interfaces:

InstanceRevision

public class FileRevision
extends Object
implements InstanceRevision

Maintains a file-based revision counter with locking, assuring uniqueness.

Constructor Summary

FileRevision(File file)
Creates a new file based revision counter.

Method Summary

void	close() Close file revision.
long	get() Return current counter value.
void	set(long value) Set current counter value.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileRevision

public FileRevision(File file)
             throws JournalException

Creates a new file based revision counter.

Parameters:

file - holding global counter

Throws:

JournalException - if some error occurs

Method Detail

get

public long get()
         throws JournalException

Return current counter value.

Specified by:

get in interface InstanceRevision

Returns:

counter value

Throws:

JournalException - if some error occurs

set

public void set(long value)
         throws JournalException

Set current counter value.

Specified by:

set in interface InstanceRevision

Parameters:

value - new counter value

Throws:

JournalException - if some error occurs

close

public void close()

Close file revision. Closes underlying random access file.

Specified by:

close in interface InstanceRevision