Java Reflection Super Class getSuperClasses(Class<?> clazz)

Description

Get super class list of a class.

License

Apache License

Parameter

Parameter	Description
clazz	the class to start traversal from

Return

a list of super class where the direct super class of the provided class is the first member of the list.
For , primitives and interfaces this returns an empty list.
For arrays this returns a list containing only .
For enums this returns a list containing and

Declaration

public static List<Class<?>> getSuperClasses(Class<?> clazz)

Method Source Code

//package com.java2s;
/*-------------------------------------------------------------------------+
|                                                                          |
| Copyright 2005-2011 The ConQAT Project                                   |
|                                                                          |
| Licensed under the Apache License, Version 2.0 (the "License");          |
| you may not use this file except in compliance with the License.         |
| You may obtain a copy of the License at                                  |
|                                                                          |
|    http://www.apache.org/licenses/LICENSE-2.0                            |
|                                                                          |
| Unless required by applicable law or agreed to in writing, software      |
| distributed under the License is distributed on an "AS IS" BASIS,        |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and      |
| limitations under the License.                                           |
+-------------------------------------------------------------------------*/

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**//w  w  w  .  j  a v  a 2s .com
     * Get super class list of a class.
     * 
     * @param clazz
     *            the class to start traversal from
     * @return a list of super class where the direct super class of the
     *         provided class is the first member of the list. <br>
     *         For {@link Object}, primitives and interfaces this returns an
     *         empty list. <br>
     *         For arrays this returns a list containing only {@link Object}. <br>
     *         For enums this returns a list containing {@link Enum} and
     *         {@link Object}
     */
    public static List<Class<?>> getSuperClasses(Class<?> clazz) {
        ArrayList<Class<?>> superClasses = new ArrayList<Class<?>>();
        findSuperClasses(clazz, superClasses);
        return superClasses;
    }

    /**
     * Recursively add super classes to a list.
     * 
     * @param clazz
     *            class to start from
     * @param superClasses
     *            list to store super classes.
     */
    private static void findSuperClasses(Class<?> clazz, List<Class<?>> superClasses) {
        Class<?> superClass = clazz.getSuperclass();
        if (superClass == null) {
            return;
        }
        superClasses.add(superClass);
        findSuperClasses(superClass, superClasses);
    }
}

Java Reflection Super Class getSuperClasses(Class clazz)