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package com.sun.ejb.containers.util.cache;

import com.sun.ejb.spi.container.SFSBContainerCallback;

public class FIFOSessionCache
	extends LruSessionCache
{ 

    public FIFOSessionCache(String cacheName, 
                            SFSBContainerCallback container, 
                            int cacheIdleTime, int removalTime) {
    	super("FIFO-" + cacheName, container, cacheIdleTime, removalTime);
    }

    protected void itemAccessed(CacheItem item) {
        LruCacheItem lc = (LruCacheItem) item;
        synchronized (this) {
            if (lc.isTrimmed()) {
                lc.setTrimmed(false);
                CacheItem overflow = super.itemAdded(item);
                if (overflow != null) {
                    trimItem(overflow);
                }
            }
        }
    }
    
    protected void itemRefreshed(CacheItem item, int oldSize) {
    }
    
    public void trimTimedoutItems(int  maxCount) {
        trimUnSortedTimedoutItems(maxCount);
    }
}