org.apache.hadoop.hbase.util

类 PoolMap<K,V>

java.lang.Object

org.apache.hadoop.hbase.util.PoolMap<K,V>

类型参数:

K - the type of the key to the resource

V - the type of the resource being pooled

所有已实现的接口:

Map<K,V>

@InterfaceAudience.Private
public class PoolMap<K,V>
extends Object
implements Map<K,V>

The PoolMap maps a key to a collection of values, the elements of which are managed by a pool. In effect, that collection acts as a shared pool of resources, access to which is closely controlled as per the semantics of the pool.

In case the size of the pool is set to a non-zero positive number, that is used to cap the number of resources that a pool may contain for any given key. A size of Integer.MAX_VALUE is interpreted as an unbounded pool.

嵌套类概要

嵌套类

限定符和类型	类和说明
protected static interface	PoolMap.Pool<R>
static class	PoolMap.PoolType
static class	PoolMap.ReusablePool<R> The ReusablePool represents a PoolMap.Pool that builds on the LinkedList class.

从接口继承的嵌套类/接口 java.util.Map

Map.Entry<K,V>

构造器概要

构造器

构造器和说明
PoolMap(PoolMap.PoolType poolType)
PoolMap(PoolMap.PoolType poolType, int poolMaxSize)

方法概要

方法

限定符和类型	方法和说明
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
protected PoolMap.Pool<V>	createPool()
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
boolean	isEmpty()
Set<K>	keySet()
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> map)
V	remove(Object key)
boolean	removeValue(K key, V value)
int	size()
int	size(K key)
Collection<V>	values()
Collection<V>	values(K key)

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.Map

equals, hashCode

构造器详细资料

PoolMap

public PoolMap(PoolMap.PoolType poolType)

PoolMap

public PoolMap(PoolMap.PoolType poolType,
       int poolMaxSize)

方法详细资料

get

public V get(Object key)

指定者:

get 在接口中 Map<K,V>

put

public V put(K key,
    V value)

指定者:

put 在接口中 Map<K,V>

remove

public V remove(Object key)

指定者:

remove 在接口中 Map<K,V>

removeValue

public boolean removeValue(K key,
                  V value)

values

public Collection<V> values()

指定者:

values 在接口中 Map<K,V>

values

public Collection<V> values(K key)

isEmpty

public boolean isEmpty()

指定者:

isEmpty 在接口中 Map<K,V>

size

public int size()

指定者:

size 在接口中 Map<K,V>

size

public int size(K key)

containsKey

public boolean containsKey(Object key)

指定者:

containsKey 在接口中 Map<K,V>

containsValue

public boolean containsValue(Object value)

指定者:

containsValue 在接口中 Map<K,V>

putAll

public void putAll(Map<? extends K,? extends V> map)

指定者:

putAll 在接口中 Map<K,V>

clear

public void clear()

指定者:

clear 在接口中 Map<K,V>

keySet

public Set<K> keySet()

指定者:

keySet 在接口中 Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

指定者:

entrySet 在接口中 Map<K,V>

createPool

protected PoolMap.Pool<V> createPool()