Class HeadersMethodArgumentResolver

java.lang.Object

org.springframework.messaging.handler.annotation.reactive.HeadersMethodArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver, SyncHandlerMethodArgumentResolver

public class HeadersMethodArgumentResolver
extends Object
implements SyncHandlerMethodArgumentResolver

Argument resolver for headers. Resolves the following method parameters:

• @Headers Map
• MessageHeaders
• MessageHeaderAccessor

Since:

5.2

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor	Description
HeadersMethodArgumentResolver()

Method Summary

Modifier and Type	Method	Description
@Nullable Object	resolveArgumentValue(MethodParameter parameter, Message<?> message)	Resolve the value for the method parameter synchronously.
boolean	supportsParameter(MethodParameter parameter)	Whether the given method parameter is supported by this resolver.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface SyncHandlerMethodArgumentResolver

resolveArgument

Constructor Details

HeadersMethodArgumentResolver

public HeadersMethodArgumentResolver()

Method Details

supportsParameter

public boolean supportsParameter(MethodParameter parameter)

Description copied from interface: HandlerMethodArgumentResolver

Whether the given method parameter is supported by this resolver.

Specified by:

supportsParameter in interface HandlerMethodArgumentResolver

Parameters:

parameter - the method parameter to check

Returns:

true if this resolver supports the supplied parameter; false otherwise

resolveArgumentValue

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

Description copied from interface: SyncHandlerMethodArgumentResolver

Resolve the value for the method parameter synchronously.

Specified by:

resolveArgumentValue in interface SyncHandlerMethodArgumentResolver

Parameters:

parameter - the method parameter

message - the currently processed message

Returns:

the resolved value, if any