| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.impl.services.reflect.ReflectMethod |
| 4 | |
| 5 | Copyright 1998, 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | package org.apache.derby.impl.services.reflect; |
| 22 | |
| 23 | import org.apache.derby.iapi.services.loader.GeneratedMethod; |
| 24 | |
| 25 | import org.apache.derby.iapi.error.StandardException; |
| 26 | |
| 27 | import java.lang.reflect.Method; |
| 28 | import java.lang.reflect.InvocationTargetException; |
| 29 | |
| 30 | class ReflectMethod implements GeneratedMethod { |
| 31 | |
| 32 | private final Method realMethod; |
| 33 | |
| 34 | ReflectMethod(Method m) { |
| 35 | super(); |
| 36 | realMethod = m; |
| 37 | } |
| 38 | |
| 39 | public Object invoke(Object ref) |
| 40 | throws StandardException { |
| 41 | |
| 42 | Throwable t; |
| 43 | |
| 44 | try { |
| 45 | return realMethod.invoke(ref, null); |
| 46 | |
| 47 | } catch (IllegalAccessException iae) { |
| 48 | |
| 49 | t = iae; |
| 50 | |
| 51 | } catch (IllegalArgumentException iae2) { |
| 52 | |
| 53 | t = iae2; |
| 54 | |
| 55 | } catch (InvocationTargetException ite) { |
| 56 | |
| 57 | t = ite.getTargetException(); |
| 58 | if (t instanceof StandardException) |
| 59 | throw (StandardException) t; |
| 60 | } |
| 61 | |
| 62 | throw StandardException.unexpectedUserException(t); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | } |