com.caucho.util
Class HashMapImpl<K,V>

java.lang.Object
  java.util.AbstractMap<K,V>
      com.caucho.util.HashMapImpl<K,V>

All Implemented Interfaces:

java.util.Map<K,V>

public class HashMapImpl<K,V>
extends java.util.AbstractMap<K,V>

HashMap which doesn't allocate a new DeployController per item.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Constructor Summary

HashMapImpl()
Create the hash map impl with a specific capacity.

HashMapImpl(int initialCapacity)
Create the hash map impl with a specific capacity.

Method Summary

void	clear() Clears the cache
java.util.Set<java.util.Map.Entry<K,V>>	entrySet() Returns the entry set of the cache
V	get(java.lang.Object key) Get an item from the cache and make it most recently used.
java.util.Set<K>	keySet() Returns the entry set of the cache
V	put(K key, V value) Puts a new item in the cache.
V	remove(java.lang.Object key) Removes an item from the cache
int	size() Returns the current number of entries in the cache.

Methods inherited from class java.util.AbstractMap

clone, containsKey, containsValue, equals, hashCode, isEmpty, putAll, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

HashMapImpl

public HashMapImpl()

Create the hash map impl with a specific capacity.

Parameters:

initialCapacity - minimum capacity of the cache

HashMapImpl

public HashMapImpl(int initialCapacity)

Create the hash map impl with a specific capacity.

Parameters:

initialCapacity - minimum capacity of the cache

Method Detail

size

public int size()

Returns the current number of entries in the cache.

Specified by:

size in interface java.util.Map<K,V>

Overrides:

size in class java.util.AbstractMap<K,V>

clear

public void clear()

Clears the cache

Specified by:

clear in interface java.util.Map<K,V>

Overrides:

clear in class java.util.AbstractMap<K,V>

get

public V get(java.lang.Object key)

Get an item from the cache and make it most recently used.

Specified by:

get in interface java.util.Map<K,V>

Overrides:

get in class java.util.AbstractMap<K,V>

Parameters:

key - key to lookup the item

Returns:

the matching object in the cache

put

public V put(K key,
             V value)

Puts a new item in the cache.

Specified by:

put in interface java.util.Map<K,V>

Overrides:

put in class java.util.AbstractMap<K,V>

Parameters:

key - key to store data

value - value to be stored

Returns:

old value stored under the key

remove

public V remove(java.lang.Object key)

Removes an item from the cache

Specified by:

remove in interface java.util.Map<K,V>

Overrides:

remove in class java.util.AbstractMap<K,V>

Parameters:

key - the key to remove

Returns:

the value removed

keySet

public java.util.Set<K> keySet()

Returns the entry set of the cache

Specified by:

keySet in interface java.util.Map<K,V>

Overrides:

keySet in class java.util.AbstractMap<K,V>

entrySet

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

Returns the entry set of the cache

Specified by:

entrySet in interface java.util.Map<K,V>

Specified by:

entrySet in class java.util.AbstractMap<K,V>