Package com.sun.jna.internal

Klasse ReflectionUtils

java.lang.Object

com.sun.jna.internal.ReflectionUtils

public class ReflectionUtils
extends Object

Helper class to invoke default method reflectively.

This class is intented to be used only be JNA itself.

This implementation is inspired by: Correct Reflective Access to Interface Default Methods in Java 8, 9, 10

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
ReflectionUtils()

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
static Object	getMethodHandle(Method method)	Retrieve the method handle, that can be used to invoke the provided method.
static Object	invokeDefaultMethod(Object target, Object methodHandle, Object... args)	Invokes a default method reflectively.
static boolean	isDefault(Method method)	Check if the supplied method object represents a default method.

Von Klasse geerbte Methoden java.lang.Object

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

Konstruktordetails

ReflectionUtils

public ReflectionUtils()

Methodendetails

isDefault

public static boolean isDefault(Method method)

Check if the supplied method object represents a default method.

This is the reflective equivalent of method.isDefault().

Parameter:

method -

Gibt zurück:

true if JVM supports default methods and method is a default method

getMethodHandle

public static Object getMethodHandle(Method method)
                              throws Exception

Retrieve the method handle, that can be used to invoke the provided method. It is only intended to be used to call default methods on interfaces.

Parameter:

method -

Gibt zurück:

method handle that can be used to invoke the supplied method

Löst aus:

Exception

invokeDefaultMethod

public static Object invokeDefaultMethod(Object target,
 Object methodHandle,
 Object... args)
                                  throws Throwable

Invokes a default method reflectively. The method must be called with the method handle for a default method on an interfaces.

Parameter:

target - object to invoke the supplied method handle on

methodHandle - retrieved via getMethodHandle(java.lang.reflect.Method)

args -

Gibt zurück:

result of the invokation

Löst aus:

Throwable