abstract Option

The abstract method option indicates that the method is an abstract method.

An abstract method defines the method signature for a class, while the implementation of the method is deferred to the subclasses of the class. An abstract method has no source code associated with it and is never executed. Only abstract classes can have abstract methods.

Alternatively, you can specify this method option by using the Abstract check box in the Jade Method Definition or External Method Definition dialog. By default, this option is unset.

The following example shows the use of the abstract option in a method signature.

drawData(graphWin: Window input) abstract;