Java Method Call invoke(String name, Object object, Object... args)

Description

invoke

License

Open Source License

Declaration

public static Object invoke(String name, Object object, Object... args) 

Method Source Code

//package com.java2s;
/*/*from  w  w w .  ja v  a2  s .c o m*/
 * Copyright (C) 2006-2007 Mindquarry GmbH, All Rights Reserved
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (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.mozilla.org/MPL/
 *
 * 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.
 */

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static Object invoke(Method method, Object object, Object... args) {
        try {
            return method.invoke(object, args);
        } catch (IllegalArgumentException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(e.getTargetException());
        }
    }

    public static Object invoke(String name, Object object, Object... args) {
        try {
            Class<?>[] parameterTypes = new Class<?>[args.length];
            for (int i = 0; i < args.length; i++)
                parameterTypes[i] = args[i].getClass();

            Method method = findMethod(object.getClass(), name, parameterTypes);
            return method.invoke(object, args);

        } catch (IllegalArgumentException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(e.getTargetException());
        }
    }

    public static Method findMethod(Class<?> clazz, String name, Class<?>[] parameterTypes) {
        try {
            return clazz.getMethod(name, parameterTypes);
        } catch (SecurityException e) {
            throw new RuntimeException(e);
        } catch (NoSuchMethodException e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. invoke(String cls_name, String method, Class[] param_cls, Object cls, Object[] params)
2. invoke(String method)
3. invoke(String methodName, Object obj)
4. invoke(String methodName, Object object, Class[] argTypes, Object[] args)
5. invoke(String methodName, Object target, Class targetClass, Object[] args)
6. invoke_ex(Object obj, String method, Class[] params, Object[] args)
7. invokeAccessableMethodWithArguments(Object instance, String method, Object... arguments)
8. invokeAndCastCollection(T returnType, Method m, Object obj, Object... args)
9. invokeAnnotatedDeclaredMethod(Object obj, Class annotationType)