/**
  * Validates the RootVariableIsDefinedByRelation constraint of '<em>Relation Domain</em>'.
  *
  * @generated NOT
  */
 public boolean validateRelationDomain_RootVariableIsDefinedByRelation(
     RelationDomain relationDomain, DiagnosticChain diagnostics, Map<Object, Object> context) {
   return RelationDomainOperations.INSTANCE.checkRootVariableIsDefinedByRelation(
       relationDomain, diagnostics, context);
 }