UIControl,
which represents a user interface component within the UI.
UIContext defines a context allowing controls to
interact with the container where they are created. This context
is independent of both application and protocol. Container will
create a subclass of context that provides support for specific
protocols and application features.
In addition to UIControl, this package defines the basic
lifecycle of a control. UIControl defines a base set
of methods that are called externally by he lifecycle driver.
These methods represent a set of stages in the base lifecycle and provide
well-defined places for controls to perform initialization,
acquire resources, render themselves, etc. The lifecycle driver
Lifecycle uses the Visitor pattern to drive the
lifecycle through the control-tree. The primary UIControl
visitors are defined in ControlLifecycle and the tree
root visitors are defined in RootLifecycle.
There are a number of sub packages that provide support to these core classes.