org.neo4j.kernel
Class StoreLocker

java.lang.Object
  org.neo4j.kernel.StoreLocker

public class StoreLocker
extends Object

Field Summary

static String

STORE_LOCK_FILENAME

Constructor Summary

StoreLocker(Config configuration, org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction fileSystemAbstraction, org.neo4j.kernel.impl.util.StringLogger logger)

Method Summary

boolean	lock(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

clone, equals, finalize, 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(Config configuration,
                   org.neo4j.kernel.impl.nioneo.store.FileSystemAbstraction fileSystemAbstraction,
                   org.neo4j.kernel.impl.util.StringLogger logger)

Method Detail

lock

public boolean lock(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

Returns:

true if lock was successfully obtained, false otherwise

release

public void release()
             throws IOException

Throws:

IOException