## 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)`