Module datarush.commons

Package com.pervasive.datarush.commons.util

Class ReflectionUtil

java.lang.Object

com.pervasive.datarush.commons.util.ReflectionUtil

public final class ReflectionUtil
extends Object

Utility methods related to reflection.

Method Summary

Modifier and Type	Method	Description
static <F> F[]	arraycast(Class<F> componentType, Object[] array)	Casts the given array to an array of the specified component type.
static Class<?>	classForName(String name, boolean initialize, ClassLoader loader)	Equivalent to Class.forName(name,initialize,loader), but handles primitive types as well.
static Class<?>	getWrapperForPrimitiveType(Class<?> primitive)	Returns the wrapper type the given primitive type
static <F> F[]	newArray(Class<F> componentType, int length)	Creates a new array of the given component type.

Methods inherited from class java.lang.Object

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

Method Detail

getWrapperForPrimitiveType

public static Class<?> getWrapperForPrimitiveType(Class<?> primitive)

Returns the wrapper type the given primitive type

Parameters:

primitive - the primitive class

Returns:

the wrapper type the given primitive type

Throws:

IllegalArgumentException - if the given type is not primitive

classForName

public static Class<?> classForName(String name,
                                    boolean initialize,
                                    ClassLoader loader)
                             throws ClassNotFoundException

Equivalent to Class.forName(name,initialize,loader), but handles primitive types as well.

Parameters:

name - The name of the class to load

initialize - whether the class must be initialized

loader - class loader from which the class must be loaded

Returns:

class object representing the desired class

Throws:

ClassNotFoundException - if the class cannot be located by the specified class loader

newArray

public static <F> F[] newArray(Class<F> componentType,
                               int length)

Creates a new array of the given component type.

Type Parameters:

F - The component type

Parameters:

componentType - The component type. Must not be primitive.

length - The length of the array.

Returns:

A new array of the given component type.

arraycast

public static <F> F[] arraycast(Class<F> componentType,
                                Object[] array)

Casts the given array to an array of the specified component type.

Type Parameters:

F - The component type

Parameters:

componentType - The component type

array - The original array. All elements of the array must be assignable to the component type.

Returns:

A newly created array of the given type.

Throws:

ClassCastException - If any of the elements of the array are not assignable to the new component type.