alluxio.resource

Class RefCountLockResource

java.lang.Object

alluxio.resource.LockResource

alluxio.resource.RefCountLockResource

All Implemented Interfaces:

Closeable, AutoCloseable

public class RefCountLockResource
extends LockResource

Reference counted Lock resource, automatically unlocks and decrements the reference count. It contains a lock and a reference count for that lock, and will decrement the lock reference count and unlocking when the resource is closed.

Constructor Summary

Constructors

Constructor and Description
RefCountLockResource(Lock lock, boolean acquireLock, AtomicInteger refCount) Creates a new instance of LockResource using the given lock and reference counter.

Method Summary

Modifier and Type	Method and Description
void	close() Releases the lock and decrement the ref count if a ref counter was provided at construction time.

Methods inherited from class alluxio.resource.LockResource

hasSameLock

Methods inherited from class java.lang.Object

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

Constructor Detail

RefCountLockResource

public RefCountLockResource(Lock lock,
                            boolean acquireLock,
                            AtomicInteger refCount)

Creates a new instance of LockResource using the given lock and reference counter. The reference counter should have been initialized and incremented outside of this class.

Parameters:

lock - the lock to acquire

acquireLock - whether to lock the lock

refCount - ref count for the lock

Method Detail

close

public void close()

Releases the lock and decrement the ref count if a ref counter was provided at construction time.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class LockResource