Java Reflection Generic Type getGenerics(Type t)

Description

get Generics

License

Apache License

Declaration

public static Class[] getGenerics(Type t) 

Method Source Code

//package com.java2s;
/*/* w  w  w.j av  a  2  s.  com*/
 * Copyright 2014, The Sporting Exchange Limited
 *
 * 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.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class Main {
    public static Class[] getGenerics(Type t) {
        Class[] generics = null;

        if (t instanceof ParameterizedType) {
            ParameterizedType type = (ParameterizedType) t;
            Type[] typeArguments = type.getActualTypeArguments();
            generics = new Class[typeArguments.length];
            for (int i = 0; i < typeArguments.length; ++i) {
                generics[i] = (Class) typeArguments[i];
            }
        }

        return generics;
    }
}

Related

1. getGenericArguments(Type type)
2. getGenericElementType(Type type)
3. getGenericFirst(Object obj)
4. getGenerics(Type genericType)
5. getGenericString(AccessibleObject ao)
6. getGenericSuperType(Type t)
7. getGenericType(@Nullable Type genericType)
8. getGenericType(Member member, int index)