Glossary for the Web Tier
- Action
- An action
does not require implementation of any specific interface or extending
any specific base class. It is any public method that takes no
arguments, and returns a String. The return value is used to drive the
navigation rules used to switch from one page to another.
- ActionListener
- ActionListener
is a classic event listener following JavaBeans design patterns. It is
implemented either as an external class that implements the
ActionListener interface, and includes a processAction() method that
takes an ActionEvent,
or as a public method on some backing bean with a return type of void
that accepts
an ActionEvent parameter. An action listener of either type can examine
and/or modify the state of all components in the current view.
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