org.apache.hadoop.hbase.util

Class IdReadWriteLock<T>

java.lang.Object

org.apache.hadoop.hbase.util.IdReadWriteLock<T>

Direct Known Subclasses:

IdReadWriteLockStrongRef, IdReadWriteLockWithObjectPool

@InterfaceAudience.Private
public abstract class IdReadWriteLock<T>
extends Object

Allows multiple concurrent clients to lock on a numeric id with ReentrantReadWriteLock. The intended usage for read lock is as follows:

 ReentrantReadWriteLock lock = idReadWriteLock.getLock(id);
 try {
   lock.readLock().lock();
   // User code.
 } finally {
   lock.readLock().unlock();
 }
 

For write lock, use lock.writeLock()

Constructor Summary

Constructors

Constructor and Description
IdReadWriteLock()

Method Summary

Modifier and Type	Method and Description
abstract ReentrantReadWriteLock	getLock(T id)
void	waitForWaiters(T id, int numWaiters)

Methods inherited from class java.lang.Object

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

Constructor Detail

IdReadWriteLock

public IdReadWriteLock()

Method Detail

getLock

public abstract ReentrantReadWriteLock getLock(T id)

waitForWaiters

public void waitForWaiters(T id,
                           int numWaiters)
                    throws InterruptedException

Throws:

InterruptedException