Class BaseCacheMap<V>

java.lang.Object

net.spy.memcached.BaseCacheMap<V>

Type Parameters:

V - the type of value taken and returned by this Map's underlying transcoder, and thus taken and returned by this Map.

All Implemented Interfaces:

Map<String,V>

Direct Known Subclasses:

CacheMap

public class BaseCacheMap<V>
extends Object
implements Map<String,V>

Base class for a Map interface to memcached.

This Map interface makes memcached a bit easier to use for some purposes by providing a limited Map implementation.

Do note that nothing that iterates over the map will work (such is memcached). All iteration mechanisms will return empty iterators and such.

Nested Class Summary

Nested classes/interfaces inherited from interface Map

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field	Description
private final MemcachedClientIF	client
private final int	exp
private final String	keyPrefix
private final Transcoder<V>	transcoder

Constructor Summary

Constructors

Constructor	Description
BaseCacheMap(MemcachedClientIF c, int expiration, String prefix, Transcoder<V> t)	Build a BaseCacheMap.

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)	This method always returns false, as truth cannot be determined without iteration.
Set<Map.Entry<String,V>>	entrySet()
V	get(Object key)
private String	getKey(String k)
boolean	isEmpty()
Set<String>	keySet()
V	put(String key, V value)
void	putAll(Map<? extends String, ? extends V> t)
V	remove(Object key)
int	size()
Collection<V>	values()

Methods inherited from class Object

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

Methods inherited from interface Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Details

keyPrefix

private final String keyPrefix

transcoder

private final Transcoder<V> transcoder

client

private final MemcachedClientIF client

exp

private final int exp

Constructor Details

BaseCacheMap

public BaseCacheMap(MemcachedClientIF c,
 int expiration,
 String prefix,
 Transcoder<V> t)

Build a BaseCacheMap.

Parameters:

c - the underlying client

expiration - the expiration for objects set through this Map

prefix - a prefix to ensure objects in this map are unique

t - the transcoder to serialize and deserialize objects

Method Details

clear

public void clear()

Specified by:

clear in interface Map<String,V>

getKey

private String getKey(String k)

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<String,V>

containsValue

public boolean containsValue(Object value)

This method always returns false, as truth cannot be determined without iteration.

Specified by:

containsValue in interface Map<String,V>

entrySet

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

Specified by:

entrySet in interface Map<String,V>

get

public V get(Object key)

Specified by:

get in interface Map<String,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<String,V>

keySet

public Set<String> keySet()

Specified by:

keySet in interface Map<String,V>

putAll

public void putAll(Map<? extends String, ? extends V> t)

Specified by:

putAll in interface Map<String,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<String,V>

size

public int size()

Specified by:

size in interface Map<String,V>

values

public Collection<V> values()

Specified by:

values in interface Map<String,V>

put

public V put(String key,
 V value)

Specified by:

put in interface Map<String,V>