/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
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 * terms governing use, modification, and redistribution, is contained in    *
 * the files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
 * access to either file, you may request a copy from help@hdfgroup.org.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

package hdf.hdf5lib.callbacks;

/** All callback definitions must derive from this interface.  Any
 * derived interfaces must define a single public method  named "callback".
 * You are responsible for deregistering your callback (if necessary)
 * in its {@link Object#finalize} method.  If native code attempts to call
 * a callback which has been GC'd, you will likely crash the VM.  If
 * there is no method to deregister the callback (e.g. <code>atexit</code>
 * in the C library), you must ensure that you always keep a live reference
 * to the callback object.<p>
 * A callback should generally never throw an exception, since it doesn't
 * necessarily have an encompassing Java environment to catch it.  Any
 * exceptions thrown will be passed to the default callback exception
 * handler.
 */
public interface Callbacks {

}
