    001    // Copyright 2011 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    // http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.internal.plastic;
    016
    017    import org.apache.tapestry5.plastic.MethodInvocationResult;
    018
    019    public class FailureMethodInvocationResult implements MethodInvocationResult
    020    {
    021        private final Throwable thrown;
    022
    023        public FailureMethodInvocationResult(Throwable thrown)
    024        {
    025            assert thrown != null;
    026
    027            this.thrown = thrown;
    028        }
    029
    030        public Object getReturnValue()
    031        {
    032            return null;
    033        }
    034
    035        public void rethrow()
    036        {
    037            throw new RuntimeException(thrown);
    038        }
    039
    040        public boolean didThrowCheckedException()
    041        {
    042            return true;
    043        }
    044
    045        public <T extends Throwable> T getCheckedException(Class<T> exceptionType)
    046        {
    047            if (exceptionType.isInstance(thrown))
    048                return exceptionType.cast(thrown);
    049
    050            return null;
    051        }
    052
    053    }