public RelationCRUDServices(RelationCRUD parent)
 {
     Parent = parent;
     RelationService = new RelationServices();
     attributeCRUD = new AttributeCRUD();
     queryService = new QueryServices();
 }
 internal void RenewObjects()
 {
     relationToCreate = new RelationObject();
     attributesForRelationToCreate = new List<AttributeObject>();
     currentAttribute = new AttributeObject();
     currentSymbol = string.Empty;
     RelationNamesToDestroy = new List<String>();
     RelationNameToDelete = string.Empty;
     reading = false;
     RelationCRUDService = new RelationCRUDServices(this);
     RelationService = new RelationServices();
     QueryService = new QueryServices();
 }
 private void RenewObjects()
 {
     relationCRUD = new RelationCRUD();
     tupleCRUD = new TupleCRUD();
     relationService = new RelationServices();
     joinServices = new JoinServices();
     queryServices = new QueryServices();
     selectService = new SelectServices();
 }
 internal TupleCRUDServices(TupleCRUD parent)
 {
     Parent = parent;
     relationService = new RelationServices();
     queryService = new QueryServices();
 }
 internal void RenewObjects()
 {
     RelationshipNameForTuple = string.Empty;
     tupleCRUDService = new TupleCRUDServices(this);
     queryService = new QueryServices();
 }