# Package org.eclipse.viatra.addon.validation.runtime

- Class Summary
  Class | Description
  --- | ---
  ConstraintAdapter | The constraint adapter class is used to collect the constraints and deal with their maintenance for a given EMF instance model.
  ConstraintExtensionRegistry | The constraint extension registry is singleton utility for accessing the constraint specifications registered through extensions (see VIATRA @Constraint annotation)
  MarkerManagerViolationListener |
  ValidationInitializerUtil |
  ValidationPartListener | The PartListener is used to observe EditorPart close actions.
  ValidationUtil |