Package org.postgresql.jdbc

Class ResourceLock

java.lang.Object

java.util.concurrent.locks.ReentrantLock

org.postgresql.jdbc.ResourceLock

All Implemented Interfaces:

Serializable, AutoCloseable, Lock

public final class ResourceLock
extends ReentrantLock
implements AutoCloseable

Extends a ReentrantLock for use in try-with-resources block.

Example use

   try (ResourceLock ignore = lock.obtain()) {
     // do something while holding the resource lock
   }

 

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ResourceLock()

Method Summary

Modifier and Type	Method	Description
void	close()	Unlock on exit of try-with-resources block.
ResourceLock	obtain()	Obtain a lock and return the ResourceLock for use in try-with-resources block.

Methods inherited from class java.util.concurrent.locks.ReentrantLock

getHoldCount, getOwner, getQueuedThreads, getQueueLength, getWaitingThreads, getWaitQueueLength, hasQueuedThread, hasQueuedThreads, hasWaiters, isFair, isHeldByCurrentThread, isLocked, lock, lockInterruptibly, newCondition, toString, tryLock, tryLock, unlock

Methods inherited from class java.lang.Object

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

Constructor Details

ResourceLock

public ResourceLock()

Method Details

obtain

public ResourceLock obtain()

Obtain a lock and return the ResourceLock for use in try-with-resources block.

close

public void close()

Unlock on exit of try-with-resources block.

Specified by:

close in interface AutoCloseable