net.sf.jkniv.cache

Class NoCache<K,V>

java.lang.Object

net.sf.jkniv.cache.NoCache<K,V>

All Implemented Interfaces:

Cacheable<K,V>

public class NoCache<K,V>
extends Object
implements Cacheable<K,V>

Nested Class Summary

Nested classes/interfaces inherited from interface net.sf.jkniv.cache.Cacheable

Cacheable.Entry<V>

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all of the mappings from this map (optional operation).
Set<Map.Entry<K,Cacheable.Entry<V>>>	entrySet()
V	get(K key) Returns the value to which the specified key is cached, or null if this cache contains no mapping for the key.
Cacheable.Entry<V>	getEntry(K key) Returns a Cacheable.Entry view of the mappings contained in this cache.
static <K,V> Cacheable<K,V>	getInstance()
String	getName() cache name
CachePolicy	getPolicy() policy that maintenance the capacity and expire time of data
V	put(K key, V object) Associates the specified value with the specified key in this cache If the cache previously contained a mapping for the key, the old value is replaced by the specified value.
Cacheable.Entry<V>	remove(K key)
void	setPolicy(CachePolicy policy) Policy to control the cache data
long	size() Returns the number of key-value mappings in this map.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static <K,V> Cacheable<K,V> getInstance()

getName

public String getName()

Description copied from interface: Cacheable

cache name

Specified by:

getName in interface Cacheable<K,V>

Returns:

the cache name

getPolicy

public CachePolicy getPolicy()

Description copied from interface: Cacheable

policy that maintenance the capacity and expire time of data

Specified by:

getPolicy in interface Cacheable<K,V>

Returns:

rules to cache maintain the data

setPolicy

public void setPolicy(CachePolicy policy)

Description copied from interface: Cacheable

Policy to control the cache data

Specified by:

setPolicy in interface Cacheable<K,V>

Parameters:

policy - that maintenance the capacity and expire time of data

put

public V put(K key,
             V object)

Description copied from interface: Cacheable

Associates the specified value with the specified key in this cache If the cache previously contained a mapping for the key, the old value is replaced by the specified value.

Specified by:

put in interface Cacheable<K,V>

Parameters:

key - with which the specified value is to be associated

object - to be associated with the specified key

Returns:

the previous value associated with key, or null if there isn't mapping for key.

get

public V get(K key)

Description copied from interface: Cacheable

Returns the value to which the specified key is cached, or null if this cache contains no mapping for the key.

Specified by:

get in interface Cacheable<K,V>

Parameters:

key - the key whose associated value is to be returned

Returns:

the value to which the specified key is cached, or null if this map contains no mapping for the key

getEntry

public Cacheable.Entry<V> getEntry(K key)

Description copied from interface: Cacheable

Returns a Cacheable.Entry view of the mappings contained in this cache.

Specified by:

getEntry in interface Cacheable<K,V>

Parameters:

key - the key whose associated with entry is to be returned

Returns:

a set view of the Cacheable.Entry contained in this cache, or null if this map contains no mapping for the key

entrySet

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

Specified by:

entrySet in interface Cacheable<K,V>

remove

public Cacheable.Entry<V> remove(K key)

Specified by:

remove in interface Cacheable<K,V>

clear

public void clear()

Description copied from interface: Cacheable

Removes all of the mappings from this map (optional operation). The map will be empty after this call returns.

Specified by:

clear in interface Cacheable<K,V>

size

public long size()

Description copied from interface: Cacheable

Returns the number of key-value mappings in this map. If the cache contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

Specified by:

size in interface Cacheable<K,V>

Returns:

the number of elements in this cache