net.sourceforge.mflow.reflect
Class ReflectionUtil

java.lang.Object
  net.sourceforge.mflow.reflect.ReflectionUtil

public class ReflectionUtil

extends java.lang.Object

Author:

carrd

Constructor Summary

ReflectionUtil()

Method Summary

static java.lang.Object	instantiate(java.lang.Class clazz, java.util.List sigs) Attempts to create an instance of a Class given a List of ParamArgPairs.
static java.lang.Object	instantiate(java.lang.String className, java.util.List sigs) Attempts to create an instance of a class based on its name and a List of ParamArgPairs.
static java.lang.Object	invokeMethod(java.lang.Object obj, java.lang.String methodName, java.util.List sigs) Attempts to invoke a named method on an arbitrary object, given a List of ParamArgPairs.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReflectionUtil

public ReflectionUtil()

Method Detail

instantiate

public static java.lang.Object instantiate(java.lang.String className,
                                           java.util.List sigs)
                                    throws ReflectionException

Attempts to create an instance of a class based on its name and a List of ParamArgPairs.

Parameters:

className - the name of a class

sigs - a list of ParamArgPairs to try in order

Returns:

an instance of the class

Throws:

ReflectionException - if an instance could not be obtained

instantiate

public static java.lang.Object instantiate(java.lang.Class clazz,
                                           java.util.List sigs)
                                    throws ReflectionException

Attempts to create an instance of a Class given a List of ParamArgPairs.

Parameters:

clazz - a Class object

sigs - a list of ParamArgPairs to try in order

Returns:

an instance of the class

Throws:

ReflectionException - if an instance could not be obtained

invokeMethod

public static java.lang.Object invokeMethod(java.lang.Object obj,
                                            java.lang.String methodName,
                                            java.util.List sigs)
                                     throws ReflectionException

Attempts to invoke a named method on an arbitrary object, given a List of ParamArgPairs.

Parameters:

obj - the object to invoke the method on

methodName - the name of the method to invoke

sigs - the List of ParamArgPairs

Returns:

the return value of the method, or null if none

Throws:

ReflectionException - if the method cannot be called