This is scenario I am stuck with EPG (Electronic programming guide): has data which is frequently updated
MY WEB APP: On load calls the EPG Services and load data into JCS cache After few minutes Say 15 minutes I have to make a call to EPG Service and get the new Data *jcs.region.metadataCache.cacheattributes.UseMemoryShrinker=true* and jcs.region.metadataCache.elementattributes.IdleTime=120 Based on this documentation http://commons.apache.org/jcs/apidocs/org/apache/jcs/engine/memory/shrinking/ShrinkerThread.html My understanding is when Memory Shrinker Property is set to true and Idle Time is exceeded Shrinked thread will remove the Cached Object from memory and invoke Eventhandlers handleElementEvent(IElementEvent iElementEvent) And it does invoke the handleElementEvent(IElementEvent iElementEvent) So I put the code below in handleElementEvent to load Data /******************/ case IElementEventConstants.ELEMENT_EVENT_EXCEEDED_IDLETIME_BACKGROUND: event = (ElementEvent) iElementEvent; element = (CacheElement) event.getSource(); //TODO loadDataFromEPG("TVGUIDE"); // reload data into Cache break; /******************/ The issue is Shrinker Thread Calls handleElementEvent only for the first time when the cached exceed Idle time After reloading When the newly Cached Object exceeds the ideltime handleElementEvent is not invoked. Is this a BUG ? or Am I doing any thing wrong How can I resolve this JCS API. Other option I have is to use Quartz Job to refresh data in Local JCS cache at specified interval which I want to avoid. Thanks Datta
