JController/1.5

[Edit Descripton] JController is an abstract class which provides the basic functionality for your own Controller classes which your create for your components. The Controller is part of Joomla's MVC Pattern. Learn how to develop a component using MVC

Model-View-Controller (MVC) is a set of design patterns, that are used to separate the different layers of your application.

The View displays the data of the model by passing it to a template. The view object can therefore access the data of the model. Joomla implements the basic functionality in the abstract JView class.
The Model stores the data of the application, and contains the business logic. Joomla implements the basic functionality in the abstract JModel class.
The Controller handles the user requests and evokes the model and the views to change it's state. Joomla implements the basic functionality in the JController class.

libraries/joomla/application/component/controller.php

Method name	Description
__construct	Constructor.
_addPath	Adds to the search path for templates and resources.
_createFileName	Create the filename for a resource.
_createModel	Method to load and return a model object.
_createView	Method to load and return a view object.
_setPath	Sets an entire array of search paths for resources.
authorize	Authorization check.
display	Typical view method for MVC based architecture.
execute	Execute a task by triggering a method in the derived class.
getModel	Method to get a model object, loading it if required.
getName	Method to get the controller name.
getTask	Get the last task that is or was to be performed.
getTasks	Gets the available tasks in the controller.
getView	Method to get a reference to the current view and load it if necessary.
redirect	Redirects the browser or returns false if no redirect is set.
registerDefaultTask	Register the default task to perform if a mapping is not found.
registerTask	Register (map) a task to a method in the class.
setAccessControl	Sets the access control levels.
setMessage	Sets the internal message that is passed with a redirect.
setRedirect	Set a URL for browser redirection.
addModelPath	Adds to the stack of model paths in LIFO order.
addViewPath	Add one or more view paths to the controller's stack, in LIFO order.

jimport( 'joomla.application.component.controller' );