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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12 package org.simantics.g2d.element.handler;
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14 import org.simantics.g2d.element.ElementClass;
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15 import org.simantics.g2d.element.ElementUtils;
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16 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;
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19 * This handler makes it possible to add adapters to different objects into an
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20 * {@link ElementClass}. An element can have multiple Adapter handlers. For
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21 * adaption, they are processed in the order of definition within the
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22 * {@link ElementClass} and adaption should return the first
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23 * <code>non-null</code> result returned by the any Adapter implementation.
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26 * See {@link ElementUtils#adapt(org.simantics.g2d.element.IElement, Class)} for
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27 * a utility that implements the above logic.
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30 * @author Tuukka Lehtonen
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31 * @see StaticObjectAdapter
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33 public interface Adapter extends ElementHandler {
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38 <T> T adapt(Class<T> toClass);
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