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## Package javax.help.event

Supports event changes in JavaHelp classes.

See:
Description

Interface Summary
HelpHistoryModelListener |
HelpModelListener | Defines the interface for an object that listens to changes in a HelpModel.
HelpSetListener | Defines the interface of an object that listens to changes in the HelpSet.
TextHelpModelListener | Defines the interface for an object that listens to changes in a TextHelpModel.

Class Summary
EventListenerList | A class that holds a list of EventListeners.
HelpHistoryModelEvent | Notifies interested parties that a change in a Help History Model source has occurred.
HelpModelEvent | Notifies interested parties that a change in a Help Model source has occurred.
HelpSetEvent | Conveys information when a HelpSet is added/removed.
TextHelpModelEvent | Notifies interested parties when a change in a TextHelpModel occurs.

## Package javax.help.event Description

Supports event changes in JavaHelp classes. `HelpModelEvent` and `HelpModelListener` support changes to the locations within HelpSets being presented, `TextHelpModelEvent` and `TextHelpModelListener` support textual changes and `HelpSetEvent`, and `HelpSetListener` support changes to the HelpSet itself.

`EventListenerList` is used as a convenience class to maintain lists of listeners and it is functionally equivalent to the equivalent Swing class--it is included to avoid adding unwanted dependencies on Swing.

## Related Documentation

For overviews, tutorials, examples, guides, tool support, and other documentation, please see the JavaHelp System User's Guide.

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