ClientRWLock (Alluxio Core - Common Utilities 294 API)

java.lang.Object
- alluxio.concurrent.ClientRWLock

All Implemented Interfaces:

java.util.concurrent.locks.ReadWriteLock
```
@ThreadSafe
public final class ClientRWLock
extends java.lang.Object
implements java.util.concurrent.locks.ReadWriteLock
```
Read/write lock associated with clients rather than threads. Either its read lock or write lock can be released by a thread different from the one acquiring them (but supposed to be requested by the same client).

Constructor Summary

Constructors
Constructor Description

ClientRWLock(int maxReaders)
Constructs a new ClientRWLock.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addReference()`	Increments the reference count.
`int`	`dropReference()`	Decrements the reference count.
`int`	`getReferenceCount()`
`java.util.concurrent.locks.Lock`	`readLock()`
`java.util.concurrent.locks.Lock`	`writeLock()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ClientRWLock
```
public ClientRWLock(int maxReaders)
```
    Constructs a new ClientRWLock.
    
    Parameters:
    
    maxReaders - total number of permits, decides the max number of concurrent readers
- Method Detail
  - readLock
```
public java.util.concurrent.locks.Lock readLock()
```
    Specified by:
    
    readLock in interface java.util.concurrent.locks.ReadWriteLock
  - writeLock
```
public java.util.concurrent.locks.Lock writeLock()
```
    Specified by:
    
    writeLock in interface java.util.concurrent.locks.ReadWriteLock
  - getReferenceCount
```
public int getReferenceCount()
```
    Returns:
    
    the reference count
  - addReference
```
public void addReference()
```
    Increments the reference count.
  - dropReference
```
public int dropReference()
```
    Decrements the reference count.
    
    Returns:
    
    the new reference count