org.springframework.messaging.handler.invocation.reactive

Interface SyncHandlerMethodArgumentResolver

All Superinterfaces:

HandlerMethodArgumentResolver

All Known Implementing Classes:

AbstractNamedValueMethodArgumentResolver, DestinationVariableMethodArgumentResolver, HeaderMethodArgumentResolver, HeadersMethodArgumentResolver

public interface SyncHandlerMethodArgumentResolver
extends HandlerMethodArgumentResolver

An extension of HandlerMethodArgumentResolver for implementations that are synchronous in nature and do not block to resolve values.

Since:

5.2

Author:

Rossen Stoyanchev

Method Summary

Modifier and Type	Method and Description
default reactor.core.publisher.Mono<Object>	resolveArgument(MethodParameter parameter, Message<?> message) Resolves a method parameter into an argument value from a given message.
Object	resolveArgumentValue(MethodParameter parameter, Message<?> message) Resolve the value for the method parameter synchronously.

Methods inherited from interface org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolver

supportsParameter

Method Detail

resolveArgument

default reactor.core.publisher.Mono<Object> resolveArgument(MethodParameter parameter,
                                                            Message<?> message)

Resolves a method parameter into an argument value from a given message.

By default this simply delegates to resolveArgumentValue(org.springframework.core.MethodParameter, org.springframework.messaging.Message<?>) for synchronous resolution.

Specified by:

resolveArgument in interface HandlerMethodArgumentResolver

Parameters:

parameter - the method parameter to resolve. This parameter must have previously been passed to HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter) which must have returned true.

message - the currently processed message

Returns:

Mono for the argument value, possibly empty

resolveArgumentValue

@Nullable
Object resolveArgumentValue(MethodParameter parameter,
                                      Message<?> message)

Resolve the value for the method parameter synchronously.

Parameters:

parameter - the method parameter

message - the currently processed message

Returns:

the resolved value, if any