void init(ExtendletConfig config, ExtendletLoader<V> loader) {
_webctx = config.getExtendletContext();
_cache = new ResourceCache<String, V>(loader, 16);
_cache.setMaxSize(1024);
_cache.setLifetime(60 * 60 * 1000); // 1hr
final int checkPeriod = loader.getCheckPeriod();
_cache.setCheckPeriod(checkPeriod >= 0 ? checkPeriod : 60 * 60 * 1000); // 1hr
}
