Class StrongCacheStorage

src/main/java/freemarker/cache/StrongCacheStorage.java:71–97

Strong cache storage is a cache storage that simply wraps a Map. It holds a strong reference to all objects it was passed, therefore prevents the cache from being purged during garbage collection. This class is thread-safe to the extent that its underlying map is. The default implementation

 * @author Attila Szegedi
 */
public class StrongCacheStorage implements ConcurrentCacheStorage
{
    private final Map map = ConcurrentMapFactory.newMaybeConcurrentHashMap();

    /**
     * Returns true if the underlying Map is a {@code ConcurrentMap}.
     */
    public boolean isConcurrent() {
        return ConcurrentMapFactory.isConcurrent(map);
    }
    
    public Object get(Object key) {
        return map.get(key);
    }

    public void put(Object key, Object value) {
        map.put(key, value);
    }

    public void remove(Object key) {
        map.remove(key);
    }
    
    public void clear() {
        map.clear();
    }
}