/*-
  * See the file LICENSE for redistribution information.
  *
  * Copyright (c) 2000-2006
  *      Oracle Corporation.  All rights reserved.
  *
  * $Id: ExceptionWrapper.java,v 12.5 2006/08/31 18:14:09 bostic Exp $
  */

package com.sleepycat.util;

/**
 * Interface implemented by exceptions that can contain nested exceptions.
 *
 * @author Mark Hayes
 */
public interface ExceptionWrapper {

    /**
     * Returns the nested exception or null if none is present.
     *
     * @return the nested exception or null if none is present.
     *
     * @deprecated replaced by {@link #getCause}.
     */
    Throwable getDetail();

    /**
     * Returns the nested exception or null if none is present.
     *
     * <p>This method is intentionally defined to be the same signature as the
     * <code>java.lang.Throwable.getCause</code> method in Java 1.4 and
     * greater.  By defining this method to return a nested exception, the Java
     * 1.4 runtime will print the nested stack trace.</p>
     *
     * @return the nested exception or null if none is present.
     */
    Throwable getCause();
}