com.moderocky.mask.api.container

Class Cache<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

com.moderocky.mask.api.container.Cache<K,V>

Type Parameters:

K - Key type

V - Value type

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public abstract class Cache<K,V>
extends HashMap<K,V>

A cache for minimising retrievals.

See Also:

Serialized Form

Nested Class Summary

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

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

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
Cache()

Method Summary

Modifier and Type	Method and Description
V	get(Object key) This will return the cached value, or query the value if it is not already present.
abstract V	getIfAbsent(K key) The method to get the value given the key.
void	invalidate()
void	update()

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Constructor Detail

Cache

public Cache()

Method Detail

get

public V get(Object key)

This will return the cached value, or query the value if it is not already present.

Specified by:

get in interface Map<K,V>

Overrides:

get in class HashMap<K,V>

Parameters:

key - The key.

Returns:

The objectp

getIfAbsent

public abstract V getIfAbsent(K key)

The method to get the value given the key.

Parameters:

key - Key.

Returns:

value

update

public void update()

invalidate

public void invalidate()