Java Method Call invoke(Class clazz, Object obj, String methodName, Object... args)

Description

invoke

License

Open Source License

Declaration

public static Object invoke(Class<?> clazz, Object obj,
            String methodName, Object... args) 

Method Source Code

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

import java.lang.reflect.Method;

public class Main {
    public static Object invoke(Class<?> clazz, Object obj,
            String methodName, Object... args) {
        try {//from  w  w w. j  ava  2s.  c  o  m
            Method method = findMethod(clazz, methodName);
            method.setAccessible(true);
            Object result = method.invoke(obj, args);
            return result;
        } catch (Throwable e) {
            throw new RuntimeException("invoke", e);
        }
    }

    public static Method findMethod(Class<?> clazz, String methodName) {
        for (Method method : clazz.getDeclaredMethods())
            if (method.getName().equalsIgnoreCase(methodName))
                return method;
        return null;
    }

    public static Method findMethod(Class<?> clazz, String method,
            Class<?>... prmTypes) {
        try {
            return clazz.getMethod(method, prmTypes);
        } catch (Exception e) {
            return null;
        }
    }
}

Related

1. invoke(@Nonnull Object source, @Nonnull String name, Object... args)
2. invoke(boolean makeAccessible, T object, Class methodClass, String methodName, Class[] paramTypes, Object... params)
3. invoke(Class c, Object obj, String method, Class[] paramClasses, Object[] params)
4. invoke(Class targetClass, Object target, String methodName, Class paramType0, Object paramValue0)
5. invoke(Class annotationClass, Object instance, Object[] parameters)
6. invoke(Class clazz, String methodName, Class[] parameterTypes, Object instance, Object[] args, Class returnType)
7. invoke(Class clazz, String methodName, Object instance, Class[] signature, Object... args)
8. invoke(Class cls, String methodName, Object... parameter)
9. invoke(Class returnType, Method m, Object obj, Object... args)