java.lang.Object
- org.springframework.messaging.handler.invocation.AbstractAsyncReturnValueHandler

所有已实现的接口:
AsyncHandlerMethodReturnValueHandler, HandlerMethodReturnValueHandler
直接已知子类:
CompletableFutureReturnValueHandler, ListenableFutureReturnValueHandler
```
public abstract class AbstractAsyncReturnValueHandler
extends Object
implements AsyncHandlerMethodReturnValueHandler
```
Convenient base class for AsyncHandlerMethodReturnValueHandler implementations that support only asynchronous (Future-like) return values and merely serve as adapters of such types to Spring's ListenableFuture.
从以下版本开始:
4.2
作者:
Sebastien Deleuze

构造器概要
构造器
构造器说明
AbstractAsyncReturnValueHandler()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`void`	`handleReturnValue(Object returnValue, MethodParameter returnType, Message<?> message)`	Handle the given return value.
`boolean`	`isAsyncReturnValue(Object returnValue, MethodParameter returnType)`	Whether the return value represents an asynchronous, Future-like type with success and error callbacks.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.springframework.messaging.handler.invocation.AsyncHandlerMethodReturnValueHandler
toListenableFuture

从接口继承的方法 org.springframework.messaging.handler.invocation.HandlerMethodReturnValueHandler
supportsReturnType

- 构造器详细资料
  - AbstractAsyncReturnValueHandler
```
public AbstractAsyncReturnValueHandler()
```
- 方法详细资料
  - isAsyncReturnValue
```
public boolean isAsyncReturnValue(Object returnValue,
                                  MethodParameter returnType)
```
    从接口复制的说明: AsyncHandlerMethodReturnValueHandler
    Whether the return value represents an asynchronous, Future-like type with success and error callbacks. If this method returns true, then AsyncHandlerMethodReturnValueHandler.toListenableFuture(java.lang.Object, org.springframework.core.MethodParameter) is invoked next. If it returns false, then HandlerMethodReturnValueHandler.handleReturnValue(java.lang.Object, org.springframework.core.MethodParameter, org.springframework.messaging.Message<?>) is called.
    Note: this method will only be invoked after HandlerMethodReturnValueHandler.supportsReturnType(org.springframework.core.MethodParameter) is called and it returns true.
    指定者:
    isAsyncReturnValue 在接口中 AsyncHandlerMethodReturnValueHandler
    参数:
    returnValue - the value returned from the handler method
    returnType - the type of the return value
    返回:
    true if the return value type represents an async value
  - handleReturnValue
```
public void handleReturnValue(Object returnValue,
                              MethodParameter returnType,
                              Message<?> message)
```
    从接口复制的说明: HandlerMethodReturnValueHandler
    Handle the given return value.
    指定者:
    handleReturnValue 在接口中 HandlerMethodReturnValueHandler
    参数:
    returnValue - the value returned from the handler method
    returnType - the type of the return value. This type must have previously been passed to HandlerMethodReturnValueHandler.supportsReturnType(org.springframework.core.MethodParameter) and it must have returned true.
    message - the message that caused this method to be called

类 AbstractAsyncReturnValueHandler

构造器概要

方法概要

从类继承的方法 java.lang.Object

从接口继承的方法 org.springframework.messaging.handler.invocation.AsyncHandlerMethodReturnValueHandler

从接口继承的方法 org.springframework.messaging.handler.invocation.HandlerMethodReturnValueHandler

构造器详细资料

AbstractAsyncReturnValueHandler

方法详细资料

isAsyncReturnValue

handleReturnValue