| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Sergey Prigogin (Google) - use parameterized types (bug 442021) |
| * Lars Vogel <Lars.Vogel@vogella.com> - Bug 478864 |
| *******************************************************************************/ |
| package org.eclipse.core.runtime; |
| |
| /** |
| * An interface for an adaptable object. |
| * <p> |
| * Adaptable objects can be dynamically extended to provide different |
| * interfaces (or "adapters"). Adapters are created by adapter |
| * factories, which are in turn managed by type by adapter managers. |
| * </p> |
| * For example, |
| * <pre> |
| * IAdaptable a = [some adaptable]; |
| * IFoo x = Adapters.getAdapter(a, IFoo.class, true); |
| * if (x != null) |
| * [do IFoo things with x] |
| * </pre> |
| * <p> |
| * This interface can be used without OSGi running. |
| * </p><p> |
| * Clients may implement this interface, or obtain a default implementation |
| * of this interface by subclassing <code>PlatformObject</code>. |
| * </p> |
| * @see IAdapterFactory |
| * @see IAdapterManager |
| * @see PlatformObject |
| * @see Adapters |
| */ |
| public interface IAdaptable { |
| /** |
| * Returns an object which is an instance of the given class |
| * associated with this object. Returns <code>null</code> if |
| * no such object can be found. |
| * <p> |
| * Clients may implement this method but should generally call {@link Adapters#adapt(Object, Class, boolean)} |
| * rather than invoking it directly. |
| * |
| * @param adapter the adapter class to look up |
| * @return a object of the given class, |
| * or <code>null</code> if this object does not |
| * have an adapter for the given class |
| */ |
| public <T> T getAdapter(Class<T> adapter); |
| } |
