Get all interface and object classes that are generalizations of the provided class : Generic « Reflection « Java

Get all interface and object classes that are generalizations of the provided class

 * The contents of this file are subject to the Sapient Public License
 * Version 1.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 * The Original Code is The Carbon Component Framework.
 * The Initial Developer of the Original Code is Sapient Corporation
 * Copyright (C) 2003 Sapient Corporation. All Rights Reserved.

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

 * Copyright 2003 Sapient
 * @since carbon 2.0
 * @author Greg Hinkle, March 2003
 * @version $Revision: 1.5 $($Author: dvoet $ / $Date: 2003/05/05 21:21:23 $)
public class ClassUtil {

     * Retrieves all interfaces implemented by a specified interface
     * including all recursively extended interfaces and the classes supplied
     * int the parameter.
     * @param childInterfaces a set of interfaces
     * @return Class[] an array of interfaces that includes those specifed
     * in childInterfaces plus all of those interfaces' super interfaces
    public static Class[] getSuperInterfaces(Class[] childInterfaces) {

        List allInterfaces = new ArrayList();

        for (int i = 0; i < childInterfaces.length; i++) {

        return (Class[]) allInterfaces.toArray(new Class[allInterfaces.size()]);

     * Builds an <b>unordered</b> set of all interface and object classes that
     * are generalizations of the provided class.
     * @param classObject the class to find generalization of.
     * @return a Set of class objects.
    public static Set getGeneralizations(Class classObject) {
        Set generalizations = new HashSet();


        Class superClass = classObject.getSuperclass();
        if (superClass != null) {

        Class[] superInterfaces = classObject.getInterfaces();
        for (int i = 0; i < superInterfaces.length; i++) {
            Class superInterface = superInterfaces[i];

        return generalizations;



Related examples in the same category

1.Get Generic Super class
2.Generic Class reflection
3.Get field type and generic type by field name
4.get Return Type and get Generic Return Type
5.get Exception Types and get Generic Exception Types
6.get Parameter Types and get Generic ParameterTypes
7.Generic method reflection
8.get Generic Parameter Types from Constructor
9.Class Declaration Spy
10.All information about a class
11.Get all implemented generic interfaces
12.If right-hand side type may be assigned to the left-hand side type following the Java generics rules.
13.A wrapper around reflection to resolve generics.
14.Get Generic Type
15.Get Parameterized Type
16.Locates generic declaration by index on a class.