Communicating with Other Beans The standard Java event delegation mechanism enables you to code JavaBeans to communicate with other objects or beans. Beans that are the source of communication are designated event sources, whereas interested beans, ones that care about the activities of source beans, are the event listeners. For example, you may want bean A to know when properties in bean B change. If so, bean B is the event source and bean A is the event listener. The events bean A listens for are property change events.
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