ErrorUnwindException.java

/*
** Module   : ErrorUnwindException.java
** Abstract : used to unwind the stack to an arbitrary return point
**
** Copyright (c) 2005-2017, Golden Code Development Corporation.
**
** -#- -I- --Date-- -T- --JPRM-- ----------------Description-----------------
** 001 GES 20050824 NEW   @22211 Created initial version which is used to 
**                               unwind the stack to an arbitrary return
**                               point.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program 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 Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
** 
** Additional terms under GNU Affero GPL version 3 section 7:
** 
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
** 
**   0. Attribution Requirement.
** 
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**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
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** 
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** 
**     This license does not grant any license or rights to use the trademarks
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*/

package com.goldencode.p2j.util;

/**
 * Used to unwind the stack to an arbitrary return point.
 * <p>
 * This is used to assist in implementing silent error mode processing (see
 * {@link ErrorManager}) in a library when a simple silent return is not easy
 * to do.  This class is used to unwind the stack to the point in the library
 * where a silent return is possible.  This exception <b>must</b> be caught
 * in the library code because it <b>will not</b> be caught in the client
 * application.  Use of this exception should be completely hidden from the
 * client application.
 *
 * @author    GES
 * @version   1.0.0
 */
public class ErrorUnwindException
extends Exception
{
   /**
    * Default constructor which uses an empty string "" as its message.
    */
   public ErrorUnwindException()
   {
      super("");
   }
   
   /**
    * Constructor which accepts an error message.
    *
    * @param   message
    *          Error message.
    */
   public ErrorUnwindException(String message)
   {
      super(message);
   }
    
   /**
    * Constructor which accepts an error message and a root cause. This
    * variant is used when the error condition is detected as the result of
    * catching another exception.
    *
    * @param   message
    *          Error message.
    * @param   rootCause
    *          Exception which has been caught in the course of processing.
    */
   public ErrorUnwindException(String message, Throwable rootCause)
   {
      super(message, rootCause);
   }
    
   /**
    * Constructor which accepts and wrappers a root cause. This variant is
    * used when the error condition is detected as the result of catching
    * another exception, and the message or context of the root cause is
    * sufficient to describe the problem.
    *
    * @param   rootCause
    *          Exception which has been caught in the course of processing.
    */
   public ErrorUnwindException(Throwable rootCause)
   {
      super(rootCause);
   }    
}