Class SessionStatusMethodArgumentResolver
- java.lang.Object
- org.springframework.web.method.annotation.SessionStatusMethodArgumentResolver
- All Implemented Interfaces:
HandlerMethodArgumentResolver
public class SessionStatusMethodArgumentResolver extends Object implements HandlerMethodArgumentResolver
Resolves aSessionStatusargument by obtaining it from theModelAndViewContainer.- Since:
- 3.1
- Author:
- Rossen Stoyanchev
Constructor Summary
Constructors Constructor Description SessionStatusMethodArgumentResolver()
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ObjectresolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory)Resolves a method parameter into an argument value from a given request.booleansupportsParameter(MethodParameter parameter)Whether the given method parameter is supported by this resolver.
Constructor Detail
SessionStatusMethodArgumentResolver
public SessionStatusMethodArgumentResolver()
Method Detail
supportsParameter
public boolean supportsParameter(MethodParameter parameter)
Description copied from interface:HandlerMethodArgumentResolverWhether the given method parameter is supported by this resolver.- Specified by:
supportsParameterin interfaceHandlerMethodArgumentResolver- Parameters:
parameter- the method parameter to check- Returns:
trueif this resolver supports the supplied parameter;falseotherwise
resolveArgument
public Object resolveArgument(MethodParameter parameter, @Nullable ModelAndViewContainer mavContainer, NativeWebRequest webRequest, @Nullable WebDataBinderFactory binderFactory) throws Exception
Description copied from interface:HandlerMethodArgumentResolverResolves a method parameter into an argument value from a given request. AModelAndViewContainerprovides access to the model for the request. AWebDataBinderFactoryprovides a way to create aWebDataBinderinstance when needed for data binding and type conversion purposes.- Specified by:
resolveArgumentin interfaceHandlerMethodArgumentResolver- Parameters:
parameter- the method parameter to resolve. This parameter must have previously been passed toHandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter)which must have returnedtrue.mavContainer- the ModelAndViewContainer for the current requestwebRequest- the current requestbinderFactory- a factory for creatingWebDataBinderinstances- Returns:
- the resolved argument value, or
nullif not resolvable - Throws:
Exception- in case of errors with the preparation of argument values