com.scaleoutsoftware.soss.client.da

Class KeystringCache

java.lang.Object

com.scaleoutsoftware.soss.client.da.KeystringCache

public final class KeystringCache
extends java.lang.Object

This class is used for client-side LRU cache of key strings

Method Summary

Modifier and Type	Method and Description
void	add(StateServerKey key, java.lang.String keyString) Adds a key string to cache
void	allowLocalKeystringCaching(boolean local) Disables/enables local keystring caching.
java.lang.String	get(StateServerKey key) Gets a key string from cache.
static KeystringCache	getInstance()

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static KeystringCache getInstance()

Returns:

an instance of key string cache

add

public void add(StateServerKey key,
                java.lang.String keyString)

Adds a key string to cache

Parameters:

key - StateServerKey

keyString - a key string associated with SSK

get

public java.lang.String get(StateServerKey key)
                     throws StateServerException

Gets a key string from cache. If the key string is not present in local cache, an attempt is made to retrieve it from the server.

Parameters:

key - a SSK for lookup

Returns:

corresponding key string or null

Throws:

StateServerException - if server returned an error

allowLocalKeystringCaching

public void allowLocalKeystringCaching(boolean local)

Disables/enables local keystring caching. By default local caching is enabled.

Parameters:

local - local keystring cashing allowed