Java Method Call invoke(Object object, String methodName, Class returnType, Object... parameters)

Description

Invoke a method.

License

Apache License

Declaration

public static <T> T invoke(Object object, String methodName, Class<T> returnType, Object... parameters)
        throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException,
        InvocationTargetException 

Method Source Code

//package com.java2s;
/*//from   w  w w .j  av a2s  .  c  o  m
 * Copyright 2016 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

public class Main {
    /** Invoke a method. */
    public static <T> T invoke(Object object, String methodName, Class<T> returnType, Object... parameters)
            throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException,
            InvocationTargetException {
        Class<?>[] parameterTypes = new Class<?>[parameters.length];
        for (int i = 0; i < parameters.length; i++) {
            parameterTypes[i] = parameters[i] == null ? Object.class : parameters[i].getClass();
        }
        Method method = object.getClass().getDeclaredMethod(methodName, parameterTypes);
        method.setAccessible(true);
        return returnType.cast(method.invoke(object, parameters));
    }
}

Related

1. invoke(Object object, String function, Object... params)
2. invoke(Object object, String function, String parameter)
3. invoke(Object object, String method, Object... args)
4. invoke(Object object, String methodName)
5. invoke(Object object, String methodName, Class[] argTypes, Object... args)
6. invoke(Object object, String methodName, Object[] args)
7. invoke(Object objToInvoke, Class classToInvoke, String method, Class[] argumentClasses, Object[] arguments)
8. invoke(Object owner, String methodName)
9. invoke(Object proxy, java.lang.reflect.Method method, Object[] args)