public class PayloadArgumentResolver extends Object implements HandlerMethodArgumentResolver
MessageConverter
.
This HandlerMethodArgumentResolver
should be ordered last as it supports all
types and does not require the Payload
annotation.
Constructor and Description |
---|
PayloadArgumentResolver(MessageConverter messageConverter) |
Modifier and Type | Method and Description |
---|---|
protected boolean |
isEmptyPayload(Message<?> message) |
Object |
resolveArgument(MethodParameter parameter,
Message<?> message)
Resolves a method parameter into an argument value from a given message.
|
boolean |
supportsParameter(MethodParameter parameter)
Whether the given method parameter is
supported by this resolver.
|
public PayloadArgumentResolver(MessageConverter messageConverter)
public boolean supportsParameter(MethodParameter parameter)
HandlerMethodArgumentResolver
supportsParameter
in interface HandlerMethodArgumentResolver
parameter
- the method parameter to checktrue
if this resolver supports the supplied parameter;
false
otherwisepublic Object resolveArgument(MethodParameter parameter, Message<?> message) throws Exception
HandlerMethodArgumentResolver
resolveArgument
in interface HandlerMethodArgumentResolver
parameter
- the method parameter to resolve. This parameter must
have previously been passed to
HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter)
and it must have returned true
message
- the currently processed messagenull
.Exception
- in case of errors with the preparation of argument valuesprotected boolean isEmptyPayload(Message<?> message)