Java Utililty Methods Method Call

List of utility methods to do Method Call

  1. HOME
  2. Java
  3. M
  4. Method Call

Description

The list of methods to do Method Call are organized into topic(s).

Method

Objectinvoke(Object invoker, String cmd, Map params)
invoke 
Method method = invoker.getClass().getMethod(cmd, Map.class);
return method.invoke(invoker, params);
Objectinvoke(Object methodHostInstance, String methodName, Class[] parameterTypes, Object[] args)
invoke 
try {
    Method method = methodHostInstance.getClass().getDeclaredMethod(methodName, parameterTypes);
    method.setAccessible(true);
    try {
        Object result = method.invoke(methodHostInstance, args);
        return result;
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
...
Objectinvoke(Object o, Method m)
invoke 
Object ret = null;
try {
    ret = m.invoke(o);
} catch (Exception e) {
return ret;
Objectinvoke(Object o, Method method, Object... param)
invoke 
return method.invoke(o, param);
Objectinvoke(Object o, String m, Object... params)
invoke 
return invoke(o.getClass(), o, m, params);
Objectinvoke(Object o, String method, Object... args)
invoke 
Class[] argTypes = new Class[args.length];
for (int i = 0; i < args.length; i++) {
    argTypes[i] = args.getClass();
Method mthd = method(method, o.getClass());
mthd.setAccessible(true);
return mthd.invoke(o, args);
Objectinvoke(Object o, String name)
Invoke zero parameter method name. 
try {
    Method method = o.getClass().getMethod(name);
    method.setAccessible(true);
    return method.invoke(o);
} catch (Exception e) {
    return null;
Objectinvoke(Object o, String name, Object[] args)
invoke 
return invoke(o.getClass(), o, name, args);
Objectinvoke(Object o, String name, Object[] args)
invoke 
return invoke(o.getClass(), o, name, args);
Objectinvoke(Object obj, Method method, Object[] args)
invoke 
if (obj == null)
    throw new NullPointerException("invoke target object is NULL.");
if (method.getDeclaringClass().isAssignableFrom(obj.getClass())) {
    return method.invoke(obj, args);
} else {
    return obj.getClass().getMethod(method.getName(), method.getParameterTypes()).invoke(obj, args);