org.apache.hadoop.hbase.util

Class PoolMap.ThreadLocalPool<R>

java.lang.Object

java.lang.ThreadLocal<R>

org.apache.hadoop.hbase.util.PoolMap.ThreadLocalPool<R>

Type Parameters:

R - the type of the resource

All Implemented Interfaces:

PoolMap.Pool<R>

Enclosing class:

PoolMap<K,V>

static class PoolMap.ThreadLocalPool<R>
extends ThreadLocal<R>
implements PoolMap.Pool<R>

The ThreadLocalPool represents a PoolMap.Pool that builds on the ThreadLocal class. It essentially binds the resource to the thread from which it is accessed.

Note that the size of the pool is essentially bounded by the number of threads that add resources to this pool.

Field Summary

Fields

Modifier and Type	Field and Description
private static Map<PoolMap.ThreadLocalPool<?>,AtomicInteger>	poolSizes

Constructor Summary

Constructors

Constructor and Description
ThreadLocalPool()

Method Summary

Modifier and Type	Method and Description
void	clear()
R	put(R resource)
void	remove()
boolean	remove(R resource)
int	size()
Collection<R>	values()

Methods inherited from class java.lang.ThreadLocal

get, initialValue, set, withInitial

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.util.PoolMap.Pool

get

Field Detail

poolSizes

private static final Map<PoolMap.ThreadLocalPool<?>,AtomicInteger> poolSizes

Constructor Detail

ThreadLocalPool

public ThreadLocalPool()

Method Detail

put

public R put(R resource)

Specified by:

put in interface PoolMap.Pool<R>

remove

public void remove()

Overrides:

remove in class ThreadLocal<R>

size

public int size()

Specified by:

size in interface PoolMap.Pool<R>

remove

public boolean remove(R resource)

Specified by:

remove in interface PoolMap.Pool<R>

clear

public void clear()

Specified by:

clear in interface PoolMap.Pool<R>

values

public Collection<R> values()

Specified by:

values in interface PoolMap.Pool<R>