com.gluonhq.charm.down.common.cache

Class DefaultCache<K,V>

java.lang.Object

com.gluonhq.charm.down.common.cache.DefaultCache<K,V>

Type Parameters:

K - type for the key

V - type for the value

All Implemented Interfaces:

Cache<K,V>

public class DefaultCache<K,V>
extends java.lang.Object
implements Cache<K,V>

Constructor Summary

Constructors

Constructor and Description
DefaultCache()

Method Summary

Modifier and Type	Method and Description
V	get(K key) Get the value for the specified key, or null when there is no such key.
void	put(K key, V value) Stores a key-value pair in the cache.
boolean	remove(K key) Remove the entry associated with this key.
void	removeAll() Remove all entries from the cache

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultCache

public DefaultCache()

Method Detail

get

public V get(K key)

Description copied from interface: Cache

Get the value for the specified key, or null when there is no such key. The latter can be because there never was an entry with this key stored, or the entry with this key has been reclaimed.

Specified by:

get in interface Cache<K,V>

Parameters:

key - the key for which we need the value

Returns:

the value for the specified key, null in case there is no value corresponding to this key.

put

public void put(K key,
                V value)

Description copied from interface: Cache

Stores a key-value pair in the cache. A NullPointerException will be thrown if the key or the value are null.

Specified by:

put in interface Cache<K,V>

Parameters:

key - the key, should not be null

value - the value, should not be null

remove

public boolean remove(K key)

Description copied from interface: Cache

Remove the entry associated with this key.

Specified by:

remove in interface Cache<K,V>

Parameters:

key - the key for which the entry is requested

Returns:

true if the cache contained an entry with this key

removeAll

public void removeAll()

Description copied from interface: Cache

Remove all entries from the cache

Specified by:

removeAll in interface Cache<K,V>