Bean Property Types
A sophisticated bean will have lots of different kinds of properties that it should expose in a builder tool for a user to set at design time or get at run time. It can also trigger both standard and custom events. Properties can be as simple as the fileName property that you saw in ImageViewerBean and FileNameBean or as sophisticated as a color value or even an array of data points—we encounter both of these cases later in this chapter. Furthermore, properties can fire events, as you will see in this section.
Getting the properties of your beans right is probably the most complex part of building a bean because the model is quite rich. The JavaBeans specification allows four types of properties, which we illustrate by various ...
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