Java tutorial
/* * Copyright (c) 1996, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.awt.datatransfer; import java.io.IOException; /** * Defines the interface for classes that can be used to provide data for a * transfer operation. * <p> * For information on using data transfer with Swing, see * <a href="http://docs.oracle.com/javase/tutorial/uiswing/dnd/index.html"> * How to Use Drag and Drop and Data Transfer</a>, a section in * <em>The Java Tutorial</em>, for more information. * * @author Amy Fowler * @since 1.1 */ public interface Transferable { /** * Returns an array of DataFlavor objects indicating the flavors the data * can be provided in. The array should be ordered according to preference * for providing the data (from most richly descriptive to least * descriptive). * * @return an array of data flavors in which this data can be transferred */ public DataFlavor[] getTransferDataFlavors(); /** * Returns whether or not the specified data flavor is supported for this * object. * * @param flavor the requested flavor for the data * @return boolean indicating whether or not the data flavor is supported */ public boolean isDataFlavorSupported(DataFlavor flavor); /** * Returns an object which represents the data to be transferred. The class * of the object returned is defined by the representation class of the * flavor. * * @param flavor the requested flavor for the data * @return an object which represents the data to be transferred * @throws IOException if the data is no longer available in the requested * flavor * @throws UnsupportedFlavorException if the requested data flavor is not * supported * @see DataFlavor#getRepresentationClass */ public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException; }