Java Reflection Method Invoke invokeMethod(Object owner, String methodName)

Description

invoke Method

License

Open Source License

Declaration

public static Object invokeMethod(Object owner, String methodName) throws Exception 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.lang.reflect.Method;

public class Main {

    public static Object invokeMethod(Object owner, String methodName) throws Exception {
        return invokeMethod(owner, methodName, new Object[] {});
    }//  w w  w .j  av  a 2  s .com

    public static Object invokeMethod(Object owner, String methodName, Object... args) throws Exception {

        Class<?> ownerClass = owner.getClass();
        int argsNum = 0;
        Class<?>[] argsClass;
        if (args == null) {
            argsClass = new Class[0];
        } else {
            argsNum = args.length;
            argsClass = new Class[argsNum];
        }
        for (int i = 0, j = argsNum; i < j; i++) {
            argsClass[i] = args[i].getClass();
        }
        Method method = ownerClass.getMethod(methodName, argsClass);
        return method.invoke(owner, args);
    }
}

Related

1. invokeMethod(Object object, String methodName, Object[] args, Class[] parameterTypes)
2. invokeMethod(Object object, String methodName, Object[] params, Object[] result)
3. invokeMethod(Object object, String name, Object... arguments)
4. invokeMethod(Object object, String propertyName)
5. invokeMethod(Object objectInstance, String methodToInvoke, Class[] parameterTypes, Object[] instanceParameters)
6. invokeMethod(Object owner, String methodName, Object[] args)
7. invokeMethod(Object parent, String method, Class[] paramTypes, Object[] args)
8. invokeMethod(Object source, String method, Collection