001 /*--------------------------------------------------------------------------+ 002 $Id: RethrowingExceptionHandler.java 26283 2010-02-18 11:18:57Z juergens $ 003 | | 004 | Copyright 2005-2010 Technische Universitaet Muenchen | 005 | | 006 | Licensed under the Apache License, Version 2.0 (the "License"); | 007 | you may not use this file except in compliance with the License. | 008 | You may obtain a copy of the License at | 009 | | 010 | http://www.apache.org/licenses/LICENSE-2.0 | 011 | | 012 | Unless required by applicable law or agreed to in writing, software | 013 | distributed under the License is distributed on an "AS IS" BASIS, | 014 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 015 | See the License for the specific language governing permissions and | 016 | limitations under the License. | 017 +--------------------------------------------------------------------------*/ 018 package edu.tum.cs.commons.error; 019 020 /** 021 * An exception handler simply rethrowing the exception caught. 022 * 023 * @author hummelb 024 * @author $Author: juergens $ 025 * @version $Rev: 26283 $ 026 * @levd.rating GREEN Hash: 2ACD776D944D5964CC083EF8762615B6 027 */ 028 public class RethrowingExceptionHandler<X extends Exception> implements 029 IExceptionHandler<X, X> { 030 031 /** Singleton instance. */ 032 private static RethrowingExceptionHandler<Exception> INSTANCE = new RethrowingExceptionHandler<Exception>(); 033 034 /** Returns the singleton instance of this class. */ 035 @SuppressWarnings("unchecked") 036 public static <X extends Exception> RethrowingExceptionHandler<X> getInstance() { 037 return (RethrowingExceptionHandler<X>) INSTANCE; 038 } 039 040 /** {@inheritDoc} */ 041 public void handleException(X exception) throws X { 042 throw exception; 043 } 044 }