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  package org.apache.cayenne.modeler.util.state;
  
  import org.apache.cayenne.modeler.ProjectController;
  import org.apache.cayenne.modeler.event.AttributeDisplayEvent;
  import org.apache.cayenne.modeler.event.DataMapDisplayEvent;
  import org.apache.cayenne.modeler.event.DataNodeDisplayEvent;
  import org.apache.cayenne.modeler.event.DomainDisplayEvent;
  import org.apache.cayenne.modeler.event.EmbeddableAttributeDisplayEvent;
  import org.apache.cayenne.modeler.event.EmbeddableDisplayEvent;
  import org.apache.cayenne.modeler.event.EntityDisplayEvent;
  import org.apache.cayenne.modeler.event.MultipleObjectsDisplayEvent;
  import org.apache.cayenne.modeler.event.ProcedureDisplayEvent;
  import org.apache.cayenne.modeler.event.ProcedureParameterDisplayEvent;
  import org.apache.cayenne.modeler.event.QueryDisplayEvent;
  import org.apache.cayenne.modeler.event.RelationshipDisplayEvent;
  
  public enum DisplayEventTypes {
  
      DomainDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new DomainDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return DomainDisplayEvent.class.getSimpleName();
          }
      },
  
      DataNodeDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new DataNodeDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return DataNodeDisplayEvent.class.getSimpleName();
          }
      },
  
      DataMapDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new DataMapDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return DataMapDisplayEvent.class.getSimpleName();
          }
      },
  
      EntityDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              if (controller.getCurrentObjAttributes().length != 0 || controller.getCurrentDbAttributes().length != 0) {
                  return new AttributeDisplayEventType(controller);
              } else if (controller.getCurrentObjRelationships().length != 0 || controller.getCurrentDbRelationships().length != 0) {
                  return new RelationshipDisplayEventType(controller);
              } else {
                  return new EntityDisplayEventType(controller);
              }
          }
  
          @Override
          public String toString() {
              return EntityDisplayEvent.class.getSimpleName();
          }
      },
  
      AttributeDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new AttributeDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return AttributeDisplayEvent.class.getSimpleName();
          }
      },
  
      RelationshipDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new RelationshipDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return RelationshipDisplayEvent.class.getSimpleName();
          }
      },
  
      EmbeddableDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              if (controller.getCurrentEmbAttributes().length != 0) {
                  return new EmbeddableAttributeDisplayEventType(controller);
              } else {
                  return new EmbeddableDisplayEventType(controller);
              }
          }
  
          @Override
          public String toString() {
              return EmbeddableDisplayEvent.class.getSimpleName();
          }
      },
  
      EmbeddableAttributeDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new EmbeddableAttributeDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return EmbeddableAttributeDisplayEvent.class.getSimpleName();
          }
      },
  
      ProcedureDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              if (controller.getCurrentProcedureParameters().length != 0) {
                  return new ProcedureParameterDisplayEventType(controller);
              } else {
                  return new ProcedureDisplayEventType(controller);
              }
          }
  
          @Override
          public String toString() {
              return ProcedureDisplayEvent.class.getSimpleName();
          }
      },
  
      ProcedureParameterDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new ProcedureParameterDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return ProcedureParameterDisplayEvent.class.getSimpleName();
          }
      },
  
      QueryDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new QueryDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return QueryDisplayEvent.class.getSimpleName();
          }
      },
  
      MultipleObjectsDisplayEvent {
          @Override
          DisplayEventType createDisplayEventType(ProjectController controller) {
              return new MultipleObjectsDisplayEventType(controller);
          }
  
          @Override
          public String toString() {
              return MultipleObjectsDisplayEvent.class.getSimpleName();
          }
      };
  
      abstract DisplayEventType createDisplayEventType(ProjectController controller);
  
  }
  