Java Reflection Method Invoke invokeMethod(Object sourceObject, String methodName, Object... arguments)

Description

invoke Method

License

Open Source License

Declaration

public static Object invokeMethod(Object sourceObject, String methodName, Object... arguments) 

Method Source Code

//package com.java2s;
/* /* w w  w. ja  va2s .  c o  m*/
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.lang.reflect.Method;

public class Main {
    public static Object invokeMethod(Object sourceObject, String methodName, Object... arguments) {
        Object returnValue;
        Method[] methodArray = sourceObject.getClass().getDeclaredMethods();
        Method metodo = null;
        for (Method m : methodArray) {
            if (m.getName().equals(methodName)) {
                metodo = m;
            }
        }

        if (metodo == null) {
            throw new RuntimeException("Couldn't find methos.");
        }

        metodo.setAccessible(true);
        try {
            returnValue = metodo.invoke(sourceObject, arguments);
        } catch (Exception e) {
            throw new RuntimeException("Couldn't invoke method: " + methodName, e);
        }

        return returnValue;
    }
}

Related

1. invokeMethod(Object objectInstance, String methodToInvoke, Class[] parameterTypes, Object[] instanceParameters)
2. invokeMethod(Object owner, String methodName)
3. invokeMethod(Object owner, String methodName, Object[] args)
4. invokeMethod(Object parent, String method, Class[] paramTypes, Object[] args)
5. invokeMethod(Object source, String method, Collection