The shapes to which domain data must conform
The shapes to which domain data must conform.
Extension declaration. Insert into the domain data to install the
extension. For example (assuming a m-ld clone object):
clone.write(ShapeConstrained.declare(0, PropertyShape.declare({
path: 'name', count: 1
})));
Note that declaration of shapes will not retrospectively apply constraints to any existing subjects in the domain. It's the app's responsibility to correct existing data, if necessary.
the preferred index into the existing list of extensions (lower value is higher priority).
shape Subjects, or References to pre-existing shapes
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This extension allows an app to declare that the domain data must conform to some defined shapes. A collection of shapes is like a 'schema' or 'object model'.
The extension can be declared in the data using declare, or instantiated and provided to the clone function in the
appparameter, e.g.api = await clone( new MemoryLevel, MqttRemotes, config, new ShapeConstrained(new PropertyShape({ path: 'http://ex.org/#name', count: 1 })));If combining shape constraints with other extensions, it may be necessary (and is safe) to use the constraints member of this class directly as a sublist in a list of constraints.
https://www.w3.org/TR/shacl/