package net.spy.memcached.ops;import java.util.Collection;/** * Gets operation (get with CAS identifier support). */public interface GetsOperation extends Operation {	/**	 * Operation callback for the Gets request.	 */	interface Callback extends OperationCallback {		/**		 * Callback for each result from a gets.		 *		 * @param key the key that was retrieved		 * @param flags the flags for this value		 * @param cas the CAS value for this record		 * @param data the data stored under this key		 */		void gotData(String key, int flags, long cas, byte[] data);	}	/**	 * Get the keys requested in this GetsOperation.	 */	Collection<String> getKeys();}