Types defining the "data model" of the EMF Validation plug-in, in most
cases mapping directly to constructs in the constraintProviders
extension point schema.
IConstraintFilter.accept(
IConstraintDescriptor constraint,
EObject target)
Determines whether a given constraint and
target pair are accepted by this filter.
AbstractConstraintProvider.createModelConstraintProxy(
IConstraintDescriptor descriptor)
Creates a contraint proxy which lazily initializes the actual
constraint implementation represented by the given descriptor.