Java Reflection Generic Return Type getGenericReturnTypeOfGenericInterfaceMethod(Class clazz, Method method)

Description

get Generic Return Type Of Generic Interface Method

License

Apache License

Declaration

public static Type getGenericReturnTypeOfGenericInterfaceMethod(Class<?> clazz, Method method) 

Method Source Code

//package com.java2s;
/*/*from ww  w.  j  a v  a2 s  . co m*/
 * Copyright 2011 cruxframework.org.
 * 
 * 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.Method;

import java.lang.reflect.Type;

public class Main {
    public static Type getGenericReturnTypeOfGenericInterfaceMethod(Class<?> clazz, Method method) {
        if (!method.getDeclaringClass().isInterface()) {
            return method.getGenericReturnType();
        }
        try {
            Method tmp = clazz.getMethod(method.getName(), method.getParameterTypes());
            return tmp.getGenericReturnType();
        } catch (NoSuchMethodException e) {

        }
        return method.getGenericReturnType();
    }
}

Related

1. getGenericClassFromMethodReturn(Method m)
2. getGenericReturnClass(Method method)
3. getGenericReturnType(Method m)
4. getGenericReturnTypeMap(Method method, boolean isAllowNull)
5. getGenericReturnTypeOfGenericInterfaceMethod( Class clazz, Method method)
6. getGenericType(Type returnType, int index)