See: Description
| Interface | Description | 
|---|---|
| HandlerMethodArgumentResolver | Strategy interface for resolving method parameters into argument values
 in the context of a given  Message. | 
| HandlerMethodReturnValueHandler | Handle the return value from the invocation of an annotated  Messagehandling method. | 
| SyncHandlerMethodArgumentResolver | An extension of  HandlerMethodArgumentResolverfor implementations
 that are synchronous in nature and do not block to resolve values. | 
| Class | Description | 
|---|---|
| AbstractEncoderMethodReturnValueHandler | Base class for a return value handler that encodes return values to
  Flux<DataBuffer>through the configuredEncoders. | 
| AbstractMethodMessageHandler<T> | Abstract base class for reactive HandlerMethod-based message handling. | 
| ArgumentResolverConfigurer | Assist with configuration for handler method argument resolvers. | 
| HandlerMethodArgumentResolverComposite | Resolves method parameters by delegating to a list of registered
  HandlerMethodArgumentResolvers. | 
| HandlerMethodReturnValueHandlerComposite | A HandlerMethodReturnValueHandler that wraps and delegates to others. | 
| InvocableHandlerMethod | Extension of  HandlerMethodthat invokes the underlying method with
 argument values resolved from the current HTTP request through a list ofHandlerMethodArgumentResolver. | 
| ReturnValueHandlerConfigurer | Assist with configuration for handler method return value handlers. |