程序包 cn.taketoday.reflect

类 MethodInvoker

java.lang.Object

cn.taketoday.reflect.MethodInvoker

所有已实现的接口:

Accessor, Invoker, MethodAccessor

直接已知子类:

ReflectiveMethodAccessor

public abstract class MethodInvoker
extends Object
implements MethodAccessor, Invoker

Fast Method Invoker

从以下版本开始:

2019-10-18 22:35

作者:

Harry Yang

嵌套类概要

嵌套类

修饰符和类型	类	说明
(专用程序包) static class	MethodInvoker.MethodInvokerCacheKey
static class	MethodInvoker.MethodInvokerGenerator

字段概要

字段

修饰符和类型	字段	说明
private final Method	method

构造器概要

构造器

构造器	说明
MethodInvoker(Method method)

方法概要

修饰符和类型	方法	说明
static MethodInvoker	formReflective(Method method)
static MethodInvoker	formReflective(Method method, boolean handleReflectionException)
static MethodInvoker	fromMethod(Class<?> beanClass, String name, Class<?>... parameters)	Create a MethodInvoker
static MethodInvoker	fromMethod(Method executable)	Create a MethodInvoker
static MethodInvoker	fromMethod(Method executable, Class<?> targetClass)	Create a MethodInvoker
Method	getMethod()
abstract Object	invoke(Object obj, Object[] args)	Invokes the underlying method represented by this Invoker object, on the specified object with the specified parameters.

从类继承的方法 java.lang.Object

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

字段详细资料

method

private final Method method

构造器详细资料

MethodInvoker

public MethodInvoker(Method method)

方法详细资料

invoke

public abstract Object invoke(Object obj,
 Object[] args)

Invokes the underlying method represented by this Invoker 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 method invocation conversions as necessary.

If the underlying method is static, then the specified obj argument is ignored. It may be null.

If the number of formal parameters required by the underlying method is 0, the supplied args array may be of length 0 or null.

If the underlying method is static, the class that declared the method is initialized if it has not already been initialized.

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. However, if the value has the type of array of a primitive type, the elements of the array are not wrapped in objects; in other words, an array of primitive type is returned. If the underlying method return type is void, the invocation returns null.

指定者:

invoke 在接口中 Invoker

参数:

obj - the object the underlying method is invoked from

args - the arguments used for the method call

返回:

the result of dispatching the method represented by this object on obj with parameters args

抛出:

NullPointerException - if the specified object is null and the method is an instance method.

ExceptionInInitializerError - if the initialization provoked by this method fails.

getMethod

public Method getMethod()

指定者:

getMethod 在接口中 MethodAccessor

fromMethod

public static MethodInvoker fromMethod(Method executable)

Create a MethodInvoker

参数:

executable - Target Method to invoke

返回:

MethodInvoker sub object

fromMethod

public static MethodInvoker fromMethod(Method executable,
 Class<?> targetClass)

Create a MethodInvoker

参数:

executable - Target Method to invoke

targetClass - most specific target class

返回:

MethodInvoker sub object

从以下版本开始:

3.0

fromMethod

public static MethodInvoker fromMethod(Class<?> beanClass,
 String name,
 Class<?>... parameters)

Create a MethodInvoker

参数:

beanClass - Bean Class

name - Target method to invoke

parameters - Target parameters classes

返回:

MethodInvoker sub object

抛出:

ReflectionException - Thrown when a particular method cannot be found.

formReflective

public static MethodInvoker formReflective(Method method)

formReflective

public static MethodInvoker formReflective(Method method,
 boolean handleReflectionException)