Examples of org.springframework.web.portlet.handler.ParameterMappingInterceptor

org.springframework.web.portlet.handler.ParameterMappingInterceptor

Interceptor to forward a request parameter from the ActionRequest to the RenderRequest.

This can be useful when using {@link ParameterHandlerMapping ParameterHandlerMapping}or {@link PortletModeParameterHandlerMapping PortletModeParameterHandlerMapping}. It will ensure that the parameter that was used to map the ActionRequest to a handler will be forwarded to the RenderRequest so that it will also be mapped the same way.

When using this Interceptor, you can still change the value of the mapping parameter in your handler in order to change where the render request will get mapped.

Be aware that this Interceptor does call ActionResponse.setRenderParameter, which means that you will not be able to call ActionResponse.sendRedirect in your handler. If you may need to issue a redirect, then you should avoid this Interceptor and either write a different one that does this in a different way, or manually forward the parameter from within your handler(s).

Thanks to Rainer Schmitz for suggesting this mapping strategy! @author John A. Lewis @since 2.0 @see ParameterHandlerMapping @see PortletModeParameterHandlerMapping

    UserRoleAuthorizationInterceptor userRoleInterceptor = new UserRoleAuthorizationInterceptor();
    userRoleInterceptor.setAuthorizedRoles(new String[] {"role1", "role2"});


    ParameterHandlerMapping interceptingHandlerMapping = new ParameterHandlerMapping();
    interceptingHandlerMapping.setParameterName("interceptingParam");
    ParameterMappingInterceptor parameterMappingInterceptor = new ParameterMappingInterceptor();
    parameterMappingInterceptor.setParameterName("interceptingParam");


    List interceptors = new ArrayList();
    interceptors.add(parameterMappingInterceptor);
    interceptors.add(userRoleInterceptor);
    interceptors.add(new MyHandlerInterceptor1());

    UserRoleAuthorizationInterceptor userRoleInterceptor = new UserRoleAuthorizationInterceptor();
    userRoleInterceptor.setAuthorizedRoles(new String[] {"role1", "role2"});


    ParameterHandlerMapping interceptingHandlerMapping = new ParameterHandlerMapping();
    interceptingHandlerMapping.setParameterName("interceptingParam");
    ParameterMappingInterceptor parameterMappingInterceptor = new ParameterMappingInterceptor();
    parameterMappingInterceptor.setParameterName("interceptingParam");


    List<HandlerInterceptor> interceptors = new ArrayList<HandlerInterceptor>(4);
    interceptors.add(parameterMappingInterceptor);
    interceptors.add(userRoleInterceptor);
    interceptors.add(new MyHandlerInterceptor1());

Examples of org.springframework.web.portlet.handler.ParameterMappingInterceptor

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