Java Reflection Method Invoke invokeMethod(Object object, String methodName, Class[] parameterTypes, Object[] parameters)

Description

Invoke a method.

License

Open Source License

Parameter

Parameter	Description
object	The object on which we must invoke method
methodName	The name of the method to invoke
parameterTypes	The types of the parameters
parameters	The parameters of the method

Exception

Parameter	Description
SecurityException	In case of problem
NoSuchMethodException	In case of problem
IllegalArgumentException	In case of problem
IllegalAccessException	In case of problem
InvocationTargetException	In case of problem

Declaration

public static Object invokeMethod(Object object, String methodName,
        Class<?>[] parameterTypes, Object[] parameters)
        throws SecurityException, NoSuchMethodException,
        IllegalArgumentException, IllegalAccessException,
        InvocationTargetException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2011, 2012 THALES GLOBAL SERVICES.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors://from   w w  w.j ava2s  .  c o m
 *    Obeo - initial API and implementation
 *******************************************************************************/

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

public class Main {
    /**
     * Invoke a method.
     * 
     * @param object
     *            The object on which we must invoke method
     * @param methodName
     *            The name of the method to invoke
     * @param parameterTypes
     *            The types of the parameters
     * @param parameters
     *            The parameters of the method
     * @throws SecurityException
     *             In case of problem
     * @throws NoSuchMethodException
     *             In case of problem
     * @throws IllegalArgumentException
     *             In case of problem
     * @throws IllegalAccessException
     *             In case of problem
     * @throws InvocationTargetException
     *             In case of problem
     */
    // CHECKSTYLE:OFF
    public static Object invokeMethod(Object object, String methodName,
            Class<?>[] parameterTypes, Object[] parameters)
            throws SecurityException, NoSuchMethodException,
            IllegalArgumentException, IllegalAccessException,
            InvocationTargetException {
        // CHECKSTYLE:ON
        Method method = object.getClass().getMethod(methodName,
                parameterTypes);
        return method.invoke(object, parameters);
    }

    /**
     * Invoke a method.
     * 
     * @param object
     *            The object on which we must invoke method
     * @param aClass
     *            The class which declares the method
     * @param methodName
     *            The name of the method to invoke
     * @param parameterTypes
     *            The types of the parameters
     * @param parameters
     *            The parameters of the method
     * @param setVisible
     *            true to set the method visible before calling.
     * @throws SecurityException
     *             In case of problem
     * @throws NoSuchMethodException
     *             In case of problem
     * @throws IllegalArgumentException
     *             In case of problem
     * @throws IllegalAccessException
     *             In case of problem
     * @throws InvocationTargetException
     *             In case of problem
     */
    // CHECKSTYLE:OFF
    public static Object invokeMethod(Object object, Class aClass,
            String methodName, Class<?>[] parameterTypes,
            Object[] parameters, boolean setVisible)
            throws SecurityException, NoSuchMethodException,
            IllegalArgumentException, IllegalAccessException,
            InvocationTargetException {
        // CHECKSTYLE:ON
        Method method = aClass
                .getDeclaredMethod(methodName, parameterTypes);
        if (setVisible) {
            method.setAccessible(true);
        }
        return method.invoke(object, parameters);
    }
}

Related

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