class MemcacheClientWrapper extends AbstractMemcacheClientWrapper {

    @Override
    public long decr(final String key, final int by) throws TimeoutException, CacheException {
        try {
            return memcachedClient.decr(key, by);
        } catch (MemcachedException | InterruptedException e) {
            throw new CacheException(e);
        }
    }

      MemcacheClientWrapper(final MemcachedClient memcachedClient);

}