org.wamblee.cache

Class ZeroCache<KeyType extends Serializable,ValueType extends Serializable>

java.lang.Object

org.wamblee.cache.ZeroCache<KeyType,ValueType>

All Implemented Interfaces:

Cache<KeyType,ValueType>

public class ZeroCache<KeyType extends Serializable,ValueType extends Serializable>
extends Object
implements Cache<KeyType,ValueType>

A cache that does not cache. This implementation is useful for disabling caching. Because of this implementation, application code does not need to distinguish between the situation where it a cache is used and where it isn't.

Author:

Erik Brakkee

Constructor Summary

Constructors

Constructor and Description
ZeroCache() Creates a new ZeroCache object.

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Removes all entries from the cache.
ValueType	get(KeyType aKey) Retrieves a value from the cache.
void	put(KeyType aKey, ValueType aValue) Adds a key-value pair to the cache.
void	remove(KeyType aKey) Removes an entry from the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZeroCache

public ZeroCache()

Creates a new ZeroCache object.

Method Detail

put

public void put(KeyType aKey,
       ValueType aValue)

Description copied from interface: Cache

Adds a key-value pair to the cache.

Specified by:

put in interface Cache<KeyType extends Serializable,ValueType extends Serializable>

Parameters:

aKey - Key.

aValue - Value.

get

public ValueType get(KeyType aKey)

Description copied from interface: Cache

Retrieves a value from the cache.

Specified by:

get in interface Cache<KeyType extends Serializable,ValueType extends Serializable>

Parameters:

aKey - Key to retrieve.

Returns:

Value or null if expired..

remove

public void remove(KeyType aKey)

Description copied from interface: Cache

Removes an entry from the cache.

Specified by:

remove in interface Cache<KeyType extends Serializable,ValueType extends Serializable>

Parameters:

aKey - Key to remove the entry for.

clear

public void clear()

Description copied from interface: Cache

Removes all entries from the cache.

Specified by:

clear in interface Cache<KeyType extends Serializable,ValueType extends Serializable>