org.dataloader.impl

Class DefaultCacheMap<U,V>

java.lang.Object

org.dataloader.impl.DefaultCacheMap<U,V>

Type Parameters:

U - type parameter indicating the type of the cache keys

V - type parameter indicating the type of the data that is cached

All Implemented Interfaces:

CacheMap<U,V>

public class DefaultCacheMap<U,V>
extends java.lang.Object
implements CacheMap<U,V>

Default implementation of CacheMap that is based on a regular LinkedHashMap.

Constructor Summary

Constructors

Constructor and Description
DefaultCacheMap() Default constructor

Method Summary

Modifier and Type	Method and Description
CacheMap<U,V>	clear() Clears all entries of the cache map
boolean	containsKey(U key) Checks whether the specified key is contained in the cach map.
CacheMap<U,V>	delete(U key) Deletes the entry with the specified key from the cache map, if it exists.
V	get(U key) Gets the specified key from the cache map.
CacheMap<U,V>	set(U key, V value) Creates a new cache map entry with the specified key and value, or updates the value if the key already exists.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.dataloader.CacheMap

simpleMap

Constructor Detail

DefaultCacheMap

public DefaultCacheMap()

Default constructor

Method Detail

containsKey

public boolean containsKey(U key)

Checks whether the specified key is contained in the cach map.

Specified by:

containsKey in interface CacheMap<U,V>

Parameters:

key - the key to check

Returns:

true if the cache contains the key, false otherwise

get

public V get(U key)

Gets the specified key from the cache map.

May throw an exception if the key does not exists, depending on the cache map implementation that is used, so be sure to check CacheMap.containsKey(Object) first.

Specified by:

get in interface CacheMap<U,V>

Parameters:

key - the key to retrieve

Returns:

the cached value, or null if not found (depends on cache implementation)

set

public CacheMap<U,V> set(U key,
                         V value)

Creates a new cache map entry with the specified key and value, or updates the value if the key already exists.

Specified by:

set in interface CacheMap<U,V>

Parameters:

key - the key to cache

value - the value to cache

Returns:

the cache map for fluent coding

delete

public CacheMap<U,V> delete(U key)

Deletes the entry with the specified key from the cache map, if it exists.

Specified by:

delete in interface CacheMap<U,V>

Parameters:

key - the key to delete

Returns:

the cache map for fluent coding

clear

public CacheMap<U,V> clear()

Clears all entries of the cache map

Specified by:

clear in interface CacheMap<U,V>

Returns:

the cache map for fluent coding