1 /* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved. 2 * 3 * This program and the accompanying materials are made available under 4 * the terms of the Common Public License v1.0 which accompanies this distribution, 5 * and is available at http://www.eclipse.org/legal/cpl-v10.html 6 * 7 * $Id: IMergeable.java,v 1.1.1.1 2004/05/09 16:57:31 vlad_r Exp $ 8 */ 9 package com.vladium.emma.data; 10 11 import java.io.Serializable; 12 13 // ---------------------------------------------------------------------------- 14 /** 15 * @author Vlad Roubtsov, (C) 2003 16 */ 17 public 18 interface IMergeable extends Serializable 19 { 20 // public: ................................................................ 21 isEmpty()22 boolean isEmpty (); 23 24 /** 25 * Caller must always switch to the returned handle. 26 */ merge(IMergeable data)27 IMergeable merge (IMergeable data); 28 29 } // end of interface 30 // ----------------------------------------------------------------------------