PPT Slide

Option #3: Semantic Events

The foregoing options (interfaces and objects) involved

low-level events.

Event processing may also occur through the use of semantic events.

Unlike listeners/adapters, these are high-level, component-based events.

They essentially ‘funnel’ a variety of low-level events into a single method.

NOTE: You lose ability to catch small, granular events (e.g., mouseEntered/Exited are not possible).

Since ALL events delivered to a few methods,

event handling relies on complex,

linear if/else structures.