Java Method Call invoke(Class clazz, String methodName, Class[] parameterTypes, Object instance, Object[] args, Class returnType)

Description

invoke

License

Open Source License

Declaration

public static <T> T invoke(Class<?> clazz, String methodName, Class<?>[] parameterTypes, Object instance,
            Object[] args, Class<T> returnType) 

Method Source Code

//package com.java2s;
/*//from   w  w  w . j  av  a2 s .  c o  m
 * JBoss, Home of Professional Open Source
 * Copyright 2015 Red Hat Inc. and/or its affiliates and other
 * contributors as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a full listing of
 * individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.lang.reflect.Method;

public class Main {
    public static <T> T invoke(Class<?> clazz, String methodName, Class<?>[] parameterTypes, Object instance,
            Object[] args, Class<T> returnType) {
        try {
            Method method = clazz.getDeclaredMethod(methodName, parameterTypes);
            method.setAccessible(true);
            return returnType.cast(method.invoke(instance, args));
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }
}

Related

1. invoke(boolean makeAccessible, T object, Class methodClass, String methodName, Class[] paramTypes, Object... params)
2. invoke(Class c, Object obj, String method, Class[] paramClasses, Object[] params)
3. invoke(Class targetClass, Object target, String methodName, Class paramType0, Object paramValue0)
4. invoke(Class annotationClass, Object instance, Object[] parameters)
5. invoke(Class clazz, Object obj, String methodName, Object... args)
6. invoke(Class clazz, String methodName, Object instance, Class[] signature, Object... args)
7. invoke(Class cls, String methodName, Object... parameter)
8. invoke(Class returnType, Method m, Object obj, Object... args)
9. invoke(E e, String methodName)