memcached

public class CacheUtils {     private static MemCachedClient mcc = new MemCachedClient();     private static CacheUtils utils = new CacheUtils();     static {         String[] servers = {"127.0.0.1:11211"};         Integer[] weights = {3};         SockIOPool pool = SockIOPool.getInstance();         pool.setServers( servers );         pool.setFailover( true );         pool.setInitConn( 10 );         pool.setMinConn( 5 );         pool.setMaxConn( 250 );         pool.setMaintSleep( 3000 );         pool.setNagle( false );         pool.setSocketTO( 3000 );         pool.setAliveCheck( true );         pool.initialize();     }     private CacheUtils() {    }     public static CacheUtils getInstance() { return utils;    }     public boolean add(String key, Object value) {         return mcc.add(key, value);     }     public boolean add(String key, Object value, Date expiry) {         return mcc.add(key, value, expiry);     }     public boolean replace(String key, Object value) {         return mcc.replace(key, value);     }     public boolean replace(String key, Object value, Date expiry) {         return mcc.replace(key, value, expiry);     }     public Object get(String key) {         return mcc.get(key);     } }