Object <- InputServer |
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Busy Clear Finalize Init Poll |
Class InputServer defines no new attributes.
Fields
No fields are defined by InputServer or any of its superclasses.
Instance template
Class InputServer cannot be instantiated.
Class definition
// InputServer is an object that provides input.
// It gets put on the input servers list and polled.
Define Class InputServer;
abstract;
inherits from Object;
operation Poll();
// queue any new inputs (convenience so each server does not need an actor)
operation Clear(), noFail;
// clear any pending inputs that have not yet been queued
operation Busy(): Boolean;
// is some input pending (prevents power down at inopportune times)?
overrides Init, Finalize;
end class;