Package com.graphhopper.storage

Class NativeFSLockFactory

java.lang.Object

com.graphhopper.storage.NativeFSLockFactory

All Implemented Interfaces:

LockFactory

public class NativeFSLockFactory
extends Object
implements LockFactory

Creates a write lock file. Influenced by Lucene code

Author:

Peter Karich

Constructor Summary

Constructors

Constructor	Description
NativeFSLockFactory()
NativeFSLockFactory(File dir)

Method Summary

Modifier and Type	Method	Description
GHLock	create(String fileName, boolean writeAccess)	This creates a file for write or read locks depending on the specified writeAccess property.
void	forceRemove(String fileName, boolean writeAccess)	Removes the specified lock.
static void	main(String[] args)
void	setLockDir(File lockDir)

Methods inherited from class java.lang.Object

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

Constructor Details

NativeFSLockFactory

public NativeFSLockFactory()

NativeFSLockFactory

public NativeFSLockFactory(File dir)

Method Details

main

public static void main(String[] args)
                 throws IOException

Throws:

IOException

setLockDir

public void setLockDir(File lockDir)

Specified by:

setLockDir in interface LockFactory

create

public GHLock create(String fileName,
 boolean writeAccess)

Description copied from interface: LockFactory

This creates a file for write or read locks depending on the specified writeAccess property. Important note: even for read locks we need write access to the underlying filesystem in order to avoid writes from other processes.

Specified by:

create in interface LockFactory

forceRemove

public void forceRemove(String fileName,
 boolean writeAccess)

Description copied from interface: LockFactory

Removes the specified lock. Note: on windows we cannot forcefully remove an unreleased native lock

Specified by:

forceRemove in interface LockFactory