com.exalead.mercury.component.tools

Class FileLock.GlobalLock

java.lang.Object

com.exalead.mercury.component.tools.FileLock.GlobalLock

Enclosing class:

FileLock

protected static class FileLock.GlobalLock
extends java.lang.Object

Global File lock, global to the process.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.nio.channels.FileChannel	channel
protected java.io.RandomAccessFile	file
protected java.nio.channels.FileLock	lock
protected int	refCount

Constructor Summary

Constructors

Constructor and Description
GlobalLock(java.io.File target, boolean shared)

Method Summary

Modifier and Type	Method and Description
boolean	addRef() Increase refCount.
int	release() Increase refCount.
protected void	releaseFile() Unlock a lock.

Methods inherited from class java.lang.Object

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

Field Detail

lock

protected java.nio.channels.FileLock lock

file

protected java.io.RandomAccessFile file

channel

protected java.nio.channels.FileChannel channel

refCount

protected int refCount

Constructor Detail

GlobalLock

public GlobalLock(java.io.File target,
                  boolean shared)
           throws java.io.IOException

Throws:

java.io.IOException

Method Detail

addRef

public boolean addRef()

Increase refCount.

release

public int release()

Increase refCount.

releaseFile

protected void releaseFile()

Unlock a lock.