    001/*-
    002 * Copyright 2015, 2016 Diamond Light Source Ltd.
    003 *
    004 * All rights reserved. This program and the accompanying materials
    005 * are made available under the terms of the Eclipse Public License v1.0
    006 * which accompanies this distribution, and is available at
    007 * http://www.eclipse.org/legal/epl-v10.html
    008 */
    009
    010package org.eclipse.january.dataset;
    011
    012/**
    013 * Interface for a dataset checker to detect change
    014 */
    015public interface IDatasetChangeChecker {
    016
    017        /**
    018         * Set dataset to be checked for signs of change. Do any state initialization in here.
    019         * @param dataset input
    020         */
    021        public void setDataset(ILazyDataset dataset);
    022
    023        /**
    024         * Check for any change. Also update state information.
    025         * @return true if possible change may have occurred
    026         */
    027        public boolean check();
    028}