Package io.awspring.cloud.sqs.config

Class DefaultMethodPayloadTypeInferrer

java.lang.Object

io.awspring.cloud.sqs.config.DefaultMethodPayloadTypeInferrer

All Implemented Interfaces:

MethodPayloadTypeInferrer

public class DefaultMethodPayloadTypeInferrer
extends Object
implements MethodPayloadTypeInferrer

Default implementation of MethodPayloadTypeInferrer that infers the payload type by analyzing method parameters and their associated argument resolvers.

The inference strategy:

1. If a parameter is explicitly annotated with Payload, it is considered the payload
2. Otherwise, the first parameter that is not supported by any non-payload resolver is considered the payload

Non-payload resolvers are those that handle framework-specific types like acknowledgements, headers, visibility, or user-provided resolvers for custom types. Payload resolvers handle the actual message payload.

Since:

3.4.3

Author:

Tomaz Fernandes

Constructor Summary

Constructors

Constructor	Description
DefaultMethodPayloadTypeInferrer()

Method Summary

Modifier and Type	Method	Description
@Nullable Class<?>	inferPayloadType(Method method, List<HandlerMethodArgumentResolver> argumentResolvers)	Infer the payload class from the given method and its argument resolvers.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultMethodPayloadTypeInferrer

public DefaultMethodPayloadTypeInferrer()

Method Details

inferPayloadType

public @Nullable Class<?> inferPayloadType(Method method,
 List<HandlerMethodArgumentResolver> argumentResolvers)

Description copied from interface: MethodPayloadTypeInferrer

Infer the payload class from the given method and its argument resolvers.

Specified by:

inferPayloadType in interface MethodPayloadTypeInferrer

Parameters:

method - the listener method

argumentResolvers - the argument resolvers available for this method, may be null or empty

Returns:

the inferred payload class, or null if it cannot be determined