01: /*
02:
03: Derby - Class org.apache.derby.impl.services.reflect.ReflectMethod
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (the "License"); you may not use this file except in compliance with
10: the License. You may obtain a copy of the License at
11:
12: http://www.apache.org/licenses/LICENSE-2.0
13:
14: Unless required by applicable law or agreed to in writing, software
15: distributed under the License is distributed on an "AS IS" BASIS,
16: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: See the License for the specific language governing permissions and
18: limitations under the License.
19:
20: */
21:
22: package org.apache.derby.impl.services.reflect;
23:
24: import org.apache.derby.iapi.services.loader.GeneratedMethod;
25:
26: import org.apache.derby.iapi.error.StandardException;
27:
28: import java.lang.reflect.Method;
29: import java.lang.reflect.InvocationTargetException;
30:
31: class ReflectMethod implements GeneratedMethod {
32:
33: private final Method realMethod;
34:
35: ReflectMethod(Method m) {
36: super ();
37: realMethod = m;
38: }
39:
40: public Object invoke(Object ref) 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: }
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