ParameterMappingInterceptor

Class Overview

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

This can be useful when using ParameterHandlerMapping or 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!

Summary

[Expand] Inherited Methods
From class org.springframework.web.portlet.handler.HandlerInterceptorAdapter void afterActionCompletion(ActionRequest request, ActionResponse response, Object handler, Exception ex) This implementation delegates to afterCompletion(PortletRequest, PortletResponse, Object, Exception). void afterCompletion(PortletRequest request, PortletResponse response, Object handler, Exception ex) Default callback that all "after*" methods delegate to. void afterEventCompletion(EventRequest request, EventResponse response, Object handler, Exception ex) This implementation delegates to afterCompletion(PortletRequest, PortletResponse, Object, Exception). void afterRenderCompletion(RenderRequest request, RenderResponse response, Object handler, Exception ex) This implementation delegates to afterCompletion(PortletRequest, PortletResponse, Object, Exception). void afterResourceCompletion(ResourceRequest request, ResourceResponse response, Object handler, Exception ex) This implementation delegates to afterCompletion(PortletRequest, PortletResponse, Object, Exception). void postHandleRender(RenderRequest request, RenderResponse response, Object handler, ModelAndView modelAndView) This implementation is empty. void postHandleResource(ResourceRequest request, ResourceResponse response, Object handler, ModelAndView modelAndView) This implementation is empty. boolean preHandle(PortletRequest request, PortletResponse response, Object handler) Default callback that all "pre*" methods delegate to. boolean preHandleAction(ActionRequest request, ActionResponse response, Object handler) This implementation delegates to preHandle(PortletRequest, PortletResponse, Object). boolean preHandleEvent(EventRequest request, EventResponse response, Object handler) This implementation delegates to preHandle(PortletRequest, PortletResponse, Object). boolean preHandleRender(RenderRequest request, RenderResponse response, Object handler) This implementation delegates to preHandle(PortletRequest, PortletResponse, Object). boolean preHandleResource(ResourceRequest request, ResourceResponse response, Object handler) This implementation delegates to preHandle(PortletRequest, PortletResponse, Object).
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)
From interface org.springframework.web.portlet.HandlerInterceptor abstract void afterActionCompletion(ActionRequest request, ActionResponse response, Object handler, Exception ex) Callback after completion of request processing in the action phase, that is, after rendering the view. abstract void afterEventCompletion(EventRequest request, EventResponse response, Object handler, Exception ex) Callback after completion of request processing in the action phase, that is, after rendering the view. abstract void afterRenderCompletion(RenderRequest request, RenderResponse response, Object handler, Exception ex) Callback after completion of request processing, that is, after rendering the view. abstract void afterResourceCompletion(ResourceRequest request, ResourceResponse response, Object handler, Exception ex) Callback after completion of request processing, that is, after rendering the view. abstract void postHandleRender(RenderRequest request, RenderResponse response, Object handler, ModelAndView modelAndView) Intercept the execution of a handler in the render phase. abstract void postHandleResource(ResourceRequest request, ResourceResponse response, Object handler, ModelAndView modelAndView) Intercept the execution of a handler in the render phase. abstract boolean preHandleAction(ActionRequest request, ActionResponse response, Object handler) Intercept the execution of a handler in the action phase. abstract boolean preHandleEvent(EventRequest request, EventResponse response, Object handler) Intercept the execution of a handler in the action phase. abstract boolean preHandleRender(RenderRequest request, RenderResponse response, Object handler) Intercept the execution of a handler in the render phase. abstract boolean preHandleResource(ResourceRequest request, ResourceResponse response, Object handler) Intercept the execution of a handler in the render phase.