org.dbforms.util
Class ReflectionUtil

java.lang.Object
  org.dbforms.util.ReflectionUtil

public class ReflectionUtil
extends Object

ReflectionUtil class

Author:

Luca Fossato

Constructor Summary

ReflectionUtil()

Method Summary

static Object	invoke(String className, String methodName, Class[] argsTypes, Object[] args) Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
static Object	newInstance(Class clazz, Class[] constructorArgsTypes, Object[] constructorArgs) Return the object having the input class name, instanced with the constructor having the constructorArgsTypes arguments.
static Object	newInstance(String className) Return the object having the input class name
static Object	newInstance(String className, Class[] constructorArgsTypes, Object[] constructorArgs) Return the object having the input class name, instanced with the constructor having the constructorArgsTypes arguments.
static void	reflectClass(String name, OutputStream os) Reflect the input class state.
static void	reflectClass(String name, Writer w) Reflect the input class state.
static void	reflectObject(Object o, OutputStream os) Reflect the input object state.
static void	reflectObject(Object o, Writer w) Reflect the input object state.
static String	toString(Object o) Get the String representation of the input object
static String	toString(String c) Get the String representation of the class having the input full qualified name.

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

invoke

public static Object invoke(String className,
                            String methodName,
                            Class[] argsTypes,
                            Object[] args)
                     throws Exception

Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
Individual parameters are automatically unwrapped to match primitive formal parameters, and both primitive and reference parameters are subject to widening conversions as necessary.
The value returned by the underlying method is automatically wrapped in an object if it has a primitive type.

Parameters:

className - the object class name

methodName - the arguments classes for the object method

argsTypes - the arguments values for the object constructor

args - DOCUMENT ME!

Returns:

If the method completes normally, the value it returns is returned to the caller of invoke; if the value has a primitive type, it is first appropriately wrapped in an object. If the underlying method return type is void, the invocation returns null.

Throws:

Exception - if any error occurs

newInstance

public static Object newInstance(String className)
                          throws Exception

Return the object having the input class name

Parameters:

className - the object class name

Returns:

the instanced object

Throws:

Exception - if any error occurs

newInstance

public static Object newInstance(String className,
                                 Class[] constructorArgsTypes,
                                 Object[] constructorArgs)
                          throws Exception

Return the object having the input class name, instanced with the constructor having the constructorArgsTypes arguments.

Parameters:

className - the object class name

constructorArgsTypes - the object constructor arguments classes

constructorArgs - the object constructor arguments values

Returns:

the instanced object

Throws:

Exception - if any error occurs

newInstance

public static Object newInstance(Class clazz,
                                 Class[] constructorArgsTypes,
                                 Object[] constructorArgs)
                          throws Exception

Return the object having the input class name, instanced with the constructor having the constructorArgsTypes arguments.

Parameters:

clazz - the object class name

constructorArgsTypes - the object constructor arguments classes

constructorArgs - the object constructor arguments values

Returns:

the instanced object

Throws:

Exception - if any error occurs

reflectClass

public static void reflectClass(String name,
                                OutputStream os)

Reflect the input class state.

Parameters:

name - Description of the Parameter

os - Description of the Parameter

reflectClass

public static void reflectClass(String name,
                                Writer w)

Reflect the input class state.

Parameters:

name - Description of the Parameter

w - Description of the Parameter

reflectObject

public static void reflectObject(Object o,
                                 OutputStream os)

Reflect the input object state.

Parameters:

o - Description of the Parameter

os - Description of the Parameter

reflectObject

public static void reflectObject(Object o,
                                 Writer w)

Reflect the input object state.

Parameters:

o - Description of the Parameter

w - Description of the Parameter

toString

public static String toString(Object o)

Get the String representation of the input object

Parameters:

o - the object to introspect

Returns:

the String representation of the input object

toString

public static String toString(String c)

Get the String representation of the class having the input full qualified name.

Parameters:

c - the full qualified name of the class to introspect

Returns:

the String representation of the input object