Java Reflection Method Invoke invokeMethod(Object object, String methodName, Object arg, Class argType)

Description

invoke Method

License

CeCILL license

Declaration

public static Object invokeMethod(Object object, String methodName, Object arg, Class argType) 

Method Source Code

//package com.java2s;
/*//  w w w .  java  2s. c  o m
 * Copyright COCKTAIL (www.cocktail.org), 1995, 2011 This software
 * is governed by the CeCILL license under French law and abiding by the
 * rules of distribution of free software. You can use, modify and/or
 * redistribute the software under the terms of the CeCILL license as
 * circulated by CEA, CNRS and INRIA at the following URL
 * "http://www.cecill.info".
 * As a counterpart to the access to the source code and rights to copy, modify
 * and redistribute granted by the license, users are provided only with a
 * limited warranty and the software's author, the holder of the economic
 * rights, and the successive licensors have only limited liability. In this
 * respect, the user's attention is drawn to the risks associated with loading,
 * using, modifying and/or developing or reproducing the software by the user
 * in light of its specific status of free software, that may mean that it
 * is complicated to manipulate, and that also therefore means that it is
 * reserved for developers and experienced professionals having in-depth
 * computer knowledge. Users are therefore encouraged to load and test the
 * software's suitability as regards their requirements in conditions enabling
 * the security of their systems and/or data to be ensured and, more generally,
 * to use and operate it in the same conditions as regards security. The
 * fact that you are presently reading this means that you have had knowledge
 * of the CeCILL license and that you accept its terms.
 */

import java.lang.reflect.Method;

public class Main {
    public static Object invokeMethod(Object object, String methodName) {
        return invokeMethod(object, methodName, (Object[]) null, (Class[]) null);
    }

    public static Object invokeMethod(Object object, String methodName, Object arg, Class argType) {
        return invokeMethod(object, methodName, new Object[] { arg }, new Class[] { argType });
    }

    public static Object invokeMethod(Object object, String methodName, Object[] args, Class[] argTypes) {
        Object result = null;
        try {
            Class cls = object.getClass();
            Method method = cls.getMethod(methodName, argTypes);
            result = method.invoke(object, args);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }
}

Related

1. invokeMethod(Object obj, String methodName, Object[] params, Class[] paramTypes)
2. invokeMethod(Object object, Method method, Object... args)
3. invokeMethod(Object object, String methodName, Class[] parameterTypes, Object[] parameters)
4. invokeMethod(Object object, String methodName, Class[] signature, Object[] parameters)
5. invokeMethod(Object object, String methodName, List argList)
6. invokeMethod(Object object, String methodName, Object... parameters)
7. invokeMethod(Object object, String methodName, Object[] args, Class[] parameterTypes)
8. invokeMethod(Object object, String methodName, Object[] params, Object[] result)
9. invokeMethod(Object object, String name, Object... arguments)