/*
 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
 * 
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * The contents of this file are subject to the terms of either the Universal Permissive License
 * v 1.0 as shown at http://oss.oracle.com/licenses/upl
 *
 * or the following license:
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
 * and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided with
 * the distribution.
 * 
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.openjdk.jmc.greychart;

/**
 * Event sent when a graph configuration has changed.
 */
public class ChartChangeEvent {
	public enum ChangeType {
		/**
		 * Event type for when data structure have changed.
		 */
		DATA_STRUCTURE_CHANGED,
		/**
		 * Event type for when data have changed.
		 */
		DATA_CHANGED,

		/**
		 * Event type for when the axis has changed.
		 */
		AXIS_CHANGED,
		/**
		 * Event type for changes that can't be placed in other categories.
		 */
		OTHER_CHANGED
	}

	private final GreyChart m_source;
	private final ChangeType m_type;

	/**
	 * Constructor.
	 *
	 * @param source
	 *            the event source.
	 * @param type
	 *            the type of the event.
	 */
	public ChartChangeEvent(GreyChart source, ChangeType type) {
		m_type = type;
		m_source = source;
	}

	/**
	 * @return the type of change.
	 */
	public ChangeType getType() {
		return m_type;
	}

	/**
	 * @return returns the source of the event.
	 */
	public GreyChart getSource() {
		return m_source;
	}
}
