org.springframework.messaging.handler.invocation.reactive

public Interface HandlerMethodArgumentResolver

Known Direct Subinterfaces: org.springframework.messaging.handler.invocation.reactive.SyncHandlerMethodArgumentResolver
Known Direct Implementers: org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolverComposite, org.springframework.messaging.rsocket.annotation.support.RSocketRequesterMethodArgumentResolver, org.springframework.messaging.handler.annotation.reactive.ContinuationHandlerMethodArgumentResolver, org.springframework.messaging.handler.annotation.reactive.PayloadMethodArgumentResolver
Imports: reactor.core.publisher.Mono, org.springframework.core.MethodParameter, org.springframework.messaging.Message

Strategy interface for resolving method parameters into argument values in the context of a given Message.

Method Summary

Modifier and Type Method and Description

Modifier and Type	Method and Description
public Mono<Object>	Returns: `Mono` for the argument value, possibly empty resolveArgument(MethodParameter the method parameter to resolve. This parameter must have previously been passed to `supportsParameter(org.springframework.core.MethodParameter)` which must have returned `true`. parameter, Message<?> the currently processed message message) Resolves a method parameter into an argument value from a given message.
public boolean	Returns: `true` if this resolver supports the supplied parameter; `false` otherwise supportsParameter(MethodParameter the method parameter to check parameter) Whether the given method parameter is supported by this resolver.

Returns:

Mono for the argument value, possibly empty

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

parameter, Message<?>

the currently processed message

message)

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

public boolean

Returns:

true if this resolver supports the supplied parameter; false otherwise

the method parameter to check

parameter)

Whether the given method parameter is supported by this resolver.

resolveArgument back to summary

resolveArgument	back to summary
public Mono<Object> resolveArgument(MethodParameter parameter, Message<?> message) Resolves a method parameter into an argument value from a given message. Parameters parameter:MethodParameter the method parameter to resolve. This parameter must have previously been passed to `supportsParameter(org.springframework.core.MethodParameter)` which must have returned `true`. message:Message<?> the currently processed message Returns:Mono<Object> `Mono` for the argument value, possibly empty

public Mono<Object> resolveArgument(MethodParameter parameter, Message<?> message)

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

Parameters

parameter:MethodParameter: the method parameter to resolve. This parameter must have previously been passed to supportsParameter(org.springframework.core.MethodParameter) which must have returned true.
message:Message<?>: the currently processed message

Mono for the argument value, possibly empty

supportsParameter back to summary

supportsParameter	back to summary
public boolean supportsParameter(MethodParameter parameter) Whether the given method parameter is supported by this resolver. Parameters parameter:MethodParameter the method parameter to check Returns:boolean `true` if this resolver supports the supplied parameter; `false` otherwise

public boolean supportsParameter(MethodParameter parameter)

Whether the given method parameter is supported by this resolver.

Parameters

Returns:boolean

true if this resolver supports the supplied parameter; false otherwise