程序包 cn.taketoday.web

类 InterceptorChain

java.lang.Object

cn.taketoday.web.InterceptorChain

直接已知子类:

InterceptableHandlerAdapterDecorator.Chain, InterceptableRequestHandler.Chain

public abstract class InterceptorChain
extends Object

HandlerInterceptor execution chain

从以下版本开始:

4.0

作者:

TODAY 2021/8/8 14:57

字段概要

字段

修饰符和类型	字段	说明
private int	currentIndex
private final Object	handler
private final int	interceptorLength
private final HandlerInterceptor[]	interceptors

构造器概要

构造器

限定符	构造器	说明
protected	InterceptorChain(HandlerInterceptor[] interceptors, Object handler)

方法概要

修饰符和类型	方法	说明
int	getCurrentIndex()	Get current interceptor's index
Object	getHandler()	target handler, maybe a HandlerMethod
HandlerInterceptor[]	getInterceptors()	Get interceptors
protected abstract Object	invokeHandler(RequestContext context, Object handler)	process target handler
final Object	proceed(RequestContext context)	Execute next interceptor
Object	unwrapHandler()	Handler maybe a HandlerMethod or HandlerWrapper

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

currentIndex

private int currentIndex

handler

private final Object handler

interceptorLength

private final int interceptorLength

interceptors

private final HandlerInterceptor[] interceptors

构造器详细资料

InterceptorChain

protected InterceptorChain(HandlerInterceptor[] interceptors,
 Object handler)

方法详细资料

proceed

@Nullable
public final Object proceed(RequestContext context)
                     throws Throwable

Execute next interceptor

参数:

context - current request context

返回:

interceptor or handler result, this will handle by ReturnValueHandler

抛出:

Throwable - if interceptor throw exception

另请参阅:

• ReturnValueHandler

invokeHandler

@Nullable
protected abstract Object invokeHandler(RequestContext context,
 Object handler)
                                 throws Throwable

process target handler

参数:

context - current context

handler - this context request handler

返回:

handle result

抛出:

Throwable

getInterceptors

public HandlerInterceptor[] getInterceptors()

Get interceptors

getCurrentIndex

public int getCurrentIndex()

Get current interceptor's index

getHandler

public Object getHandler()

target handler, maybe a HandlerMethod

另请参阅:

• HandlerMethod.unwrap(Object)
• HandlerWrapper

unwrapHandler

public Object unwrapHandler()

Handler maybe a HandlerMethod or HandlerWrapper

另请参阅:

• HandlerMethod.unwrap(Object)
• HandlerWrapper