Java Method Call invokeNonArgMethod(Object object, String methodName)

Description

invoke Non Arg Method

License

Open Source License

Declaration

private static Object invokeNonArgMethod(Object object, String methodName) 

Method Source Code

//package com.java2s;
/*//from   www.  j ava2  s .co m
 * The MIT License
 *
 * Copyright 2013 Jakub Jirutka <jakub@jirutka.cz>.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import java.lang.reflect.InvocationTargetException;

public class Main {
    private static Object invokeNonArgMethod(Object object, String methodName) {
        Class<?> clazz = object.getClass();

        try {
            return clazz.getMethod(methodName).invoke(object);

        } catch (NoSuchMethodException ex) {
            throw new IllegalArgumentException(String.format("Class should declare method %s()", methodName));

        } catch (InvocationTargetException | IllegalAccessException ex) {
            throw new IllegalStateException(ex);
        }
    }
}

Related

1. invokeIteratorCallable(String callableClassName, ClassLoader cl)
2. invokeMXMethod(String methodName)
3. invokeNoArgs(Object instance, Method method, Class returnType)
4. invokeNoArgsMethod(Object object, String methodName)
5. invokeNonAccessibleMethod(Class clazz, String methodName, Object instance, Object... params)
6. invokeObjectMethod(Object object, String name, Class paramTypes[], Object args[])
7. invokeOrBailOut(Object invokee, Method method, Object[] params)
8. invokeParameterlessMethod(T theObject, String methodName)
9. invokePrepare(Object instance)