org.nuiton.util
Class ObjectUtil

java.lang.Object
  org.nuiton.util.ObjectUtil

public class ObjectUtil
extends Object

Method Summary

static Object	call(Object o, Method m, String... params) Call method m with params as String.
protected static Object	convert(String v, Class<?> clazz)
static Object	create(String classnameAndProperties) Create new object from string like org.nuiton.Toto(name=machine, int=10) where machine and int is properties on org.nuiton.Toto object.
static <T> List<Constructor<T>>	getConstructor(Class<T> clazz, int paramNumber) Get all constructors that support paramNumber as parameters numbers.
static List<Method>	getMethod(Class<?> clazz, String methodName, boolean ignoreCase) Get all methods with name given in argument without check parameters
static <T> T	newInstance(Class<T> clazz, String... params) Create new instance of clazz, call constructor with params as String.
static Object	newInstance(String constructorWithParams)
static Object	toObject(boolean b) Method toObject transform a boolean to a Boolean object
static Object	toObject(byte b) Method toObject transform a byte to a Byte Object
static Object	toObject(char c) Method toObject transform a char to a Character Object
static Object	toObject(double d) Method toObject transform a double to a Double object
static Object	toObject(float f) Method toObject transform a float to a Float Object
static Object	toObject(int i) Method toObject transform an int to an Integer object
static Object	toObject(long l) Method toObject transform a long to a Long object
static Object	toObject(Object o) Method toObject
static Object	toObject(short s) Method toObject transform a short to a Short object

Methods inherited from class java.lang.Object

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

Method Detail

create

public static Object create(String classnameAndProperties)
                     throws ClassNotFoundException,
                            InstantiationException,
                            IllegalAccessException,
                            InvocationTargetException,
                            NoSuchMethodException

Create new object from string like org.nuiton.Toto(name=machine, int=10) where machine and int is properties on org.nuiton.Toto object. Conversion between 10 in string and 10 as integer as automaticaly done For String property you can use ex:

name="my string with , in string"

name='my string with , in string'

Parameters:

classnameAndProperties -

Returns:

the instanciated object

Throws:

ClassNotFoundException

IllegalAccessException

InstantiationException

NoSuchMethodException

InvocationTargetException

convert

protected static Object convert(String v,
                                Class<?> clazz)

call

public static Object call(Object o,
                          Method m,
                          String... params)
                   throws IllegalAccessException,
                          IllegalArgumentException,
                          InvocationTargetException,
                          InstantiationException

Call method m with params as String. Each param is converted to required type for method with beanutils converter

Parameters:

o - object where method must be call

m - method to call

params - parameters for method call

Returns:

returned method's value

Throws:

IllegalAccessException

IllegalArgumentException

InvocationTargetException

InstantiationException

getMethod

public static List<Method> getMethod(Class<?> clazz,
                                     String methodName,
                                     boolean ignoreCase)

Get all methods with name given in argument without check parameters

Parameters:

clazz -

methodName - method name to search

ignoreCase - if true, ignore difference in method name case

Returns:

list of detected methods

newInstance

public static Object newInstance(String constructorWithParams)
                          throws ClassNotFoundException

Throws:

ClassNotFoundException

newInstance

public static <T> T newInstance(Class<T> clazz,
                                String... params)
                     throws IllegalArgumentException

Create new instance of clazz, call constructor with params as String. Each param is converted to required type for constructor with beanutils converter, first constructor that permit instanciation is used

Type Parameters:

T - type to instanciate

Parameters:

clazz - class to instanciate

params - parameters for constructor call

Returns:

new instance of clazz

Throws:

IllegalArgumentException

getConstructor

public static <T> List<Constructor<T>> getConstructor(Class<T> clazz,
                                                      int paramNumber)

Get all constructors that support paramNumber as parameters numbers. Varargs is supported

Type Parameters:

T - le type de la classe a inspecter

Parameters:

clazz - la classe sur lequel rechercher le constructeur

paramNumber - le nombre de parametre souhaite pour le constructeur, -1 indique que tous les constructeur sont souhaite.

Returns:

list of constructors

toObject

public static Object toObject(Object o)

Method toObject

Parameters:

o - Object to transform

Returns:

the same object

toObject

public static Object toObject(char c)

Method toObject transform a char to a Character Object

Parameters:

c - the char to transform

Returns:

the Charactere object corresponding

toObject

public static Object toObject(byte b)

Method toObject transform a byte to a Byte Object

Parameters:

b - the byte to transform

Returns:

the byte object corresponding

toObject

public static Object toObject(short s)

Method toObject transform a short to a Short object

Parameters:

s - the short to transform

Returns:

the Short object corresponding

toObject

public static Object toObject(int i)

Method toObject transform an int to an Integer object

Parameters:

i - the int to transform

Returns:

the Integer Object corresponding

toObject

public static Object toObject(long l)

Method toObject transform a long to a Long object

Parameters:

l - the long to transform

Returns:

the Long Object corresponding

toObject

public static Object toObject(float f)

Method toObject transform a float to a Float Object

Parameters:

f - the float to transform

Returns:

the Float Object corresponding

toObject

public static Object toObject(double d)

Method toObject transform a double to a Double object

Parameters:

d - the double to transform

Returns:

the Double object corresponding

toObject

public static Object toObject(boolean b)

Method toObject transform a boolean to a Boolean object

Parameters:

b - the boolean to transform

Returns:

the Boolean object corresponding