org.springframework.web.portlet.mvc
Class ParameterizableViewController

java.lang.Object
  org.springframework.context.support.ApplicationObjectSupport
      org.springframework.web.portlet.context.PortletApplicationObjectSupport
          org.springframework.web.portlet.handler.PortletContentGenerator
              org.springframework.web.portlet.mvc.AbstractController
                  org.springframework.web.portlet.mvc.ParameterizableViewController

All Implemented Interfaces:

ApplicationContextAware, PortletContextAware, Controller

public class ParameterizableViewController
extends AbstractController

Trivial controller that always returns a named view. The view can be configured using an exposed configuration property. This controller offers an alternative to sending a request straight to a view such as a JSP. The advantage here is that the client is not exposed to the concrete view technology but rather just to the controller URL; the concrete view will be determined by the ViewResolver.

Workflow (and that defined by superclass):

1. Render request is received by the controller
2. call to handleRenderRequestInternal which just returns the view, named by the configuration property viewName. Nothing more, nothing less

This controller does not handle action requests.

Exposed configuration properties (and those defined by superclass):

name	default	description
viewName	null	the name of the view the viewResolver will use to forward to (if this property is not set, an exception will be thrown during initialization)

Since:

2.0

Author:

John A. Lewis

Field Summary

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport

logger

Constructor Summary

ParameterizableViewController()

Method Summary

String	getViewName() Return the name of the view to delegate to.
protected ModelAndView	handleRenderRequestInternal(javax.portlet.RenderRequest request, javax.portlet.RenderResponse response) Return a ModelAndView object with the specified view name.
protected void	initApplicationContext() Subclasses can override this for custom initialization behavior.
void	setViewName(String viewName) Set the name of the view to delegate to.

Methods inherited from class org.springframework.web.portlet.mvc.AbstractController

handleActionRequest, handleActionRequestInternal, handleRenderRequest, isRenderWhenMinimized, isSynchronizeOnSession, setRenderWhenMinimized, setSynchronizeOnSession

Methods inherited from class org.springframework.web.portlet.handler.PortletContentGenerator

applyCacheSeconds, cacheForSeconds, check, checkAndPrepare, checkAndPrepare, getCacheSeconds, isRequireSession, preventCaching, setCacheSeconds, setRequireSession

Methods inherited from class org.springframework.web.portlet.context.PortletApplicationObjectSupport

getPortletContext, getTempDir, isContextRequired, setPortletContext

Methods inherited from class org.springframework.context.support.ApplicationObjectSupport

getApplicationContext, getMessageSourceAccessor, initApplicationContext, requiredContextClass, setApplicationContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParameterizableViewController

public ParameterizableViewController()

Method Detail

setViewName

public void setViewName(String viewName)

Set the name of the view to delegate to.

getViewName

public String getViewName()

Return the name of the view to delegate to.

initApplicationContext

protected void initApplicationContext()

Description copied from class: ApplicationObjectSupport

Subclasses can override this for custom initialization behavior.

The default implementation is empty. Called by ApplicationObjectSupport.initApplicationContext(org.springframework.context.ApplicationContext).

Overrides:

initApplicationContext in class ApplicationObjectSupport

See Also:

ApplicationObjectSupport.setApplicationContext(org.springframework.context.ApplicationContext)

handleRenderRequestInternal

protected ModelAndView handleRenderRequestInternal(javax.portlet.RenderRequest request,
                                                   javax.portlet.RenderResponse response)
                                            throws Exception

Return a ModelAndView object with the specified view name.

Overrides:

handleRenderRequestInternal in class AbstractController

Throws:

Exception

See Also:

AbstractController.handleRenderRequest(javax.portlet.RenderRequest, javax.portlet.RenderResponse), AbstractController.handleActionRequestInternal(javax.portlet.ActionRequest, javax.portlet.ActionResponse)