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// Copyright 2011-2012 David A. Greenbaum /*// w ww . j ava 2 s. co m This file is part of Tip On Discount. Tip On Discount is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Tip On Discount is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Tip On Discount. If not, see <http://www.gnu.org/licenses/>. */ package com.itllp.tipOnDiscount.model; import com.itllp.tipOnDiscount.model.update.Update; public interface DataModelObserver { /** * Processes an update from the data model. * Each attribute of the data model has its own data type to identify * which field in the UI needs to be updated. * @param updatedModel should always be our data model * @param updatedData contains the updated value */ public void update(DataModel updatedModel, Update updatedData); }