public class ArgumentMethodArgumentResolver extends Object implements HandlerMethodArgumentResolver
@Argument annotated method parameters, obtained
via DataFetchingEnvironment.getArgument(String) and converted to the
declared type of the method parameter.| Constructor and Description |
|---|
ArgumentMethodArgumentResolver(Decoder<Object> decoder,
Encoder<Object> encoder)
Variant of
ArgumentMethodArgumentResolver(GenericHttpMessageConverter)
to use an Encoder and Decoder to convert input arguments. |
ArgumentMethodArgumentResolver(GenericHttpMessageConverter<Object> converter)
Constructor with an
HttpMessageConverter to convert
Map-based input arguments to higher level Objects. |
| Modifier and Type | Method and Description |
|---|---|
Object |
resolveArgument(MethodParameter parameter,
DataFetchingEnvironment environment)
Resolves a method parameter into an argument value from a given request.
|
boolean |
supportsParameter(MethodParameter parameter)
Whether the given method parameter is
supported by this resolver.
|
public ArgumentMethodArgumentResolver(GenericHttpMessageConverter<Object> converter)
HttpMessageConverter to convert
Map-based input arguments to higher level Objects.public boolean supportsParameter(MethodParameter parameter)
HandlerMethodArgumentResolversupportsParameter in interface HandlerMethodArgumentResolverparameter - the method parameter to checktrue if this resolver supports the supplied parameter;
false otherwisepublic Object resolveArgument(MethodParameter parameter, DataFetchingEnvironment environment) throws Exception
HandlerMethodArgumentResolverModelAndViewContainer provides access to the model for the
request. A WebDataBinderFactory provides a way to create
a WebDataBinder instance when needed for data binding and
type conversion purposes.resolveArgument in interface HandlerMethodArgumentResolverparameter - the method parameter to resolve. This parameter must
have previously been passed to HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter) which must
have returned true.environment - the GraphQL DataFetchingEnvironmentnull if not resolvableException - in case of errors with the preparation of argument values