AnnotatedMixin
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package dsom
Anything annotated must be able to construct the appropriate DFDLAnnotation object from the xml.
Anything annotated must be able to construct the appropriate DFDLAnnotation object from the xml.
Here we establish an invariant which is that every annotatable schema component has, definitely, has an annotation object.
Here we establish an invariant which is that every annotatable schema component has, definitely, has an annotation object. It may have no properties on it, but it will be there. Hence, we can delegate various property-related attribute calculations to it.
To realize this, every concrete class must implement (or inherit) an implementation of emptyFormatFactory, which constructs an empty format annotation, and isMyFormatAnnotation which tests if an annotation is the corresponding kind.
Given that, formatAnnotation then either finds the right annotation, or constructs one, but our invariant is imposed. There *is* a formatAnnotation.
The DFDL annotations on the component, as objects that are subtypes of DFDLAnnotation.
Every component that can be annotated. Review Note: It's no longer clear that this separation is strictly speaking needed. It's possible that this could be collapsed back into AnnotatedSchemaComponent or made smaller anyway.