1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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13 package org.simantics.utils.threads.ua;
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16 * Listener for state changes
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18 * @author Toni Kalajainen (toni.kalajainen@vtt.fi)
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20 public interface StateListener<StateType> {
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23 * Call-back for state transition
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25 * @param sender State monitor object
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26 * @param oldState new state
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27 * @param newState new state
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29 void onStateTransition(IStatefulObject<StateType, ?> sender, StateType oldState, StateType newState);
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