View Javadoc
1   /*
2    * Copyright 2007 Werner Guttmann
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5    * in compliance with the License. You may obtain a copy of the License at
6    *
7    * http://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software distributed under the License
10   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11   * or implied. See the License for the specific language governing permissions and limitations under
12   * the License.
13   */
14  package org.exolab.castor.util;
15  
16  import java.lang.reflect.InvocationTargetException;
17  import java.lang.reflect.Method;
18  
19  /**
20   * Utility class to support reflection-based operations.
21   *
22   * @since 1.1.2
23   */
24  public class ReflectionUtil {
25  
26    /**
27     * Calls isEnum() method on target class vi areflection to find out whether the given type is a
28     * Java 5 enumeration.
29     * 
30     * @param type The type to analyze.
31     * @return True if the type given is a Java 5.0 enum.
32     * @throws NoSuchMethodException If the method can not be found.
33     * @throws IllegalAccessException If access to this method is illegal
34     * @throws InvocationTargetException If the target method can not be invoked.
35     */
36    public static Boolean isEnumViaReflection(Class type)
37        throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
38      Method isEnumMethod = type.getClass().getMethod("isEnum", (Class[]) null);
39      return (Boolean) isEnumMethod.invoke(type, (Object[]) null);
40    }
41  
42  
43  }