Package com.avoka.fc.core.util

Class MemoryCache

java.lang.Object

com.avoka.fc.core.util.MemoryCache

public class MemoryCache
extends Object

Provides an in memory cache for frequently used values. This memory cache is intended for use in Groovy Services where high performance read access is required to read only data sets.

Example

 def key = "Address Records"

 def recordSet = MemoryCache.getClientObject(key)
 if (recordSet == null) {
     // Load external address records
     recordSet = ...

     // Set cache time out to 24 hours
     def timeoutMins = 24 * 60
     MemoryCache.setClientObject(key, recordSet, timeoutMins)
 }
 

Since:

4.3.0

Constructor Summary

Constructors

Constructor	Description
MemoryCache()

Method Summary

Modifier and Type	Method	Description
static Object	getClientObject(String key)	Return the cached client object, or null if not defined.
static Object	getGlobalObject(String key)	Return the cached global object, or null if not defined.
static void	removeClientObject(String key)	Remove the the cached client object for the given key.
static void	removeGlobalObject(String key)	Remove the the cached global object for the given key.
static void	setClientObject(String key, Object value, long timeoutMins)	Put an object into the client's data security context cache.
static void	setGlobalObject(String key, Object value, long timeoutMins)	Put an object into the global cache.

Methods inherited from class java.lang.Object

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

Constructor Details

MemoryCache

public MemoryCache()

Method Details

getClientObject

public static Object getClientObject(String key)

Return the cached client object, or null if not defined. This value will be cached in the client's data security context and will not be available to other clients.

Parameters:

key - the cache key (required)

Returns:

the cached client object, or null if not defined

Throws:

SecurityException - if client data security context could not be resolved

getGlobalObject

public static Object getGlobalObject(String key)

Return the cached global object, or null if not defined.

Parameters:

key - the cache key (required)

Returns:

the cached global object, or null if not defined

setClientObject

public static void setClientObject(String key,
 Object value,
 long timeoutMins)

Put an object into the client's data security context cache.

Parameters:

key - the cache key (required)

value - the value to cache (required)

timeoutMins - the cache timeout in minutes

setGlobalObject

public static void setGlobalObject(String key,
 Object value,
 long timeoutMins)

Put an object into the global cache.

Parameters:

key - the cache key (required)

value - the value to cache (required)

timeoutMins - the cache timeout in minutes

removeClientObject

public static void removeClientObject(String key)

Remove the the cached client object for the given key.

Parameters:

key - the cache key (required)

removeGlobalObject

public static void removeGlobalObject(String key)

Remove the the cached global object for the given key.

Parameters:

key - the cache key (required)