Spring Framework

org.springframework.web.servlet.mvc.method.annotation
Class RedirectAttributesMethodArgumentResolver

java.lang.Object
  extended by org.springframework.web.servlet.mvc.method.annotation.RedirectAttributesMethodArgumentResolver
All Implemented Interfaces:
HandlerMethodArgumentResolver

public class RedirectAttributesMethodArgumentResolver
extends java.lang.Object
implements HandlerMethodArgumentResolver

Resolves method arguments of type RedirectAttributes.

This resolver must be listed ahead of ModelMethodProcessor and MapMethodProcessor, which support Map and Model arguments both of which are "super" types of RedirectAttributes and would also attempt to resolve a RedirectAttributes argument.

Since:
3.1
Author:
Rossen Stoyanchev

Constructor Summary
RedirectAttributesMethodArgumentResolver()
           
 
Method Summary
 java.lang.Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory)
          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.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RedirectAttributesMethodArgumentResolver

public RedirectAttributesMethodArgumentResolver()
Method Detail

supportsParameter

public boolean supportsParameter(MethodParameter parameter)
Description copied from interface: HandlerMethodArgumentResolver
Whether the given method parameter is supported by this resolver.

Specified by:
supportsParameter in interface HandlerMethodArgumentResolver
Parameters:
parameter - the method parameter to check
Returns:
true if this resolver supports the supplied parameter; false otherwise

resolveArgument

public java.lang.Object resolveArgument(MethodParameter parameter,
                                        ModelAndViewContainer mavContainer,
                                        NativeWebRequest webRequest,
                                        WebDataBinderFactory binderFactory)
                                 throws java.lang.Exception
Description copied from interface: HandlerMethodArgumentResolver
Resolves a method parameter into an argument value from a given request. A ModelAndViewContainer 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.

Specified by:
resolveArgument in interface HandlerMethodArgumentResolver
Parameters:
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
mavContainer - the ModelAndViewContainer for the current request
webRequest - the current request
binderFactory - a factory for creating WebDataBinder instances
Returns:
the resolved argument value, or null.
Throws:
java.lang.Exception - in case of errors with the preparation of argument values

Spring Framework