org.springframework.messaging.handler.annotation.support - spring-framework

spring-framework / org.springframework.messaging.handler.annotation.support

Package org.springframework.messaging.handler.annotation.support

Types

AbstractNamedValueMethodArgumentResolver	`abstract class AbstractNamedValueMethodArgumentResolver : HandlerMethodArgumentResolver` Abstract base class for resolving method arguments from a named value. Message headers, and path variables are examples of named values. Each may have a name, a required flag, and a default value. Subclasses define how to do the following: Obtain named value information for a method parameter Resolve names into argument values Handle missing argument values when argument values are required Optionally handle a resolved value A default value string can contain ${...} placeholders and Spring Expression Language `#{...}` expressions. For this to work a ConfigurableBeanFactory must be supplied to the class constructor. A ConversionService may be used to apply type conversion to the resolved argument value if it doesn't match the method parameter type.
AnnotationExceptionHandlerMethodResolver	`open class AnnotationExceptionHandlerMethodResolver : AbstractExceptionHandlerMethodResolver` A sub-class of AbstractExceptionHandlerMethodResolver that looks for MessageExceptionHandler-annotated methods in a given class. The actual exception types handled are extracted either from the annotation, if present, or from the method signature as a fallback option.
DestinationVariableMethodArgumentResolver	`open class DestinationVariableMethodArgumentResolver : AbstractNamedValueMethodArgumentResolver` Resolves method parameters annotated with org.springframework.messaging.handler.annotation.DestinationVariable.
HeaderMethodArgumentResolver	`open class HeaderMethodArgumentResolver : AbstractNamedValueMethodArgumentResolver` Resolves method parameters annotated with Header.
HeadersMethodArgumentResolver	`open class HeadersMethodArgumentResolver : HandlerMethodArgumentResolver` Resolves the following method parameters: Parameters assignable to Map annotated with Headers Parameters of type MessageHeaders Parameters assignable to MessageHeaderAccessor
MessageMethodArgumentResolver	`open class MessageMethodArgumentResolver : HandlerMethodArgumentResolver` `HandlerMethodArgumentResolver` for Message method arguments. Validates that the generic type of the payload matches to the message value or otherwise applies MessageConverter to convert to the expected payload type.
PayloadArgumentResolver	`open class PayloadArgumentResolver : HandlerMethodArgumentResolver` A resolver to extract and convert the payload of a message using a MessageConverter. It also validates the payload using a Validator if the argument is annotated with a Validation annotation. This HandlerMethodArgumentResolver should be ordered last as it supports all types and does not require the Payload annotation.

Exceptions

MethodArgumentNotValidException	`open class MethodArgumentNotValidException : MethodArgumentResolutionException` Exception to be thrown when a method argument fails validation perhaps as a result of `@Valid` style validation, or perhaps because it is required.
MethodArgumentTypeMismatchException	`open class MethodArgumentTypeMismatchException : MethodArgumentResolutionException` Exception that indicates that a method argument has not the expected type.