The Spring Framework

## Package org.springframework.web.portlet.mvc

Standard controller implementations for the portlet MVC framework that comes with Spring.

See:
Description

Interface Summary
Controller: Base portlet Controller interface, representing a component that receives RenderRequest/RenderResponse and ActionRequest/ActionResponse like a `Portlet` but is able to participate in an MVC workflow.

Class Summary
AbstractCommandController: Abstract base class for custom command controllers.
AbstractController: Convenient superclass for controller implementations, using the Template Method design pattern.
AbstractFormController: Form controller that auto-populates a form bean from the request.
AbstractWizardFormController: Form controller for typical wizard-style workflows.
BaseCommandController: Controller implementation which creates an object (the command object) on receipt of a request and attempts to populate this object with request parameters.
ParameterizableViewController: Trivial controller that always returns a named view.
PortletModeNameViewController: Trivial controller that transforms the PortletMode to a view name.
PortletWrappingController: `Controller` implementation that wraps a portlet instance which it manages internally.
SimpleControllerHandlerAdapter: Adapter to use the Controller workflow interface with the generic DispatcherPortlet.
SimpleFormController: Concrete FormController implementation that provides configurable form and success views, and an onSubmit chain for convenient overriding.

## Package org.springframework.web.portlet.mvc Description

Standard controller implementations for the portlet MVC framework that comes with Spring. Provides both abstract base classes and concrete implementations for often seen use cases.

A `Controller` - as defined in this package - is analogous to a Struts `Action`. Usually `Controllers` are JavaBeans to allow easy configuration using the `org.springframework.beans` package. Controllers define the `C` from so-called MVC paradigm and can be used in conjunction with the `ModelAndView` to achieve interactive applications. The view might be represented by a HTML interface, but, because of model and the controller being completely independent of the view, PDF views are possible, as well as for instance Excel views.

Especially useful to read, while getting into the Spring MVC framework are the following:

- Controller
- BaseCommandController
- ParameterizableViewController

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