====== Java Beans ======


A bean is reusable software software component.

It is a type of object that obeys the following rules.

  * It must have a zero argument public constructor argument e.g. public MyBean() { ...
  * It implements the Serializable interface
  * Its fields are accessed via get and set methods
  * Implements listener mechanisms

JavaBeans used to be used only for client side GUI Development where they could be dragged from a beanbox into a view.  They are now used on the server side as Enterprise Java Beans.

The usebean attribute concern non-visual beans


The main advantage of a bean is introspectoin

Enterprise Java Beans are Entity Beans


Entity beans model business 'Nouns'

[[http://www.unix.org.ua/orelly/java-ent/ebeans/ch06_01.htm]]