org.neo4j.kernel

Class StoreLocker

java.lang.Object

org.neo4j.kernel.StoreLocker

public class StoreLocker
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	STORE_LOCK_FILENAME

Constructor Summary

Constructors

Constructor and Description
StoreLocker(org.neo4j.kernel.configuration.Config configuration, org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction fileSystemAbstraction)

Method Summary

Methods

Modifier and Type	Method and Description
void	checkLock(File storeDir) Obtains lock on store file so that we can ensure the store is not shared between database instances Creates store dir if necessary, creates store lock file if necessary
void	release()

Methods inherited from class java.lang.Object

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

Field Detail

STORE_LOCK_FILENAME

public static final String STORE_LOCK_FILENAME

See Also:

Constant Field Values

Constructor Detail

StoreLocker

public StoreLocker(org.neo4j.kernel.configuration.Config configuration,
           org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction fileSystemAbstraction)

Method Detail

checkLock

public void checkLock(File storeDir)
               throws StoreLockException

Obtains lock on store file so that we can ensure the store is not shared between database instances

Creates store dir if necessary, creates store lock file if necessary

Throws:

StoreLockException - if lock could not be acquired

release

public void release()
             throws IOException

Throws:

IOException