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  package org.apache.cayenne.modeler.action;
  
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.map.DbEntity;
  import org.apache.cayenne.map.Entity;
  import org.apache.cayenne.map.ObjEntity;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.event.EntityDisplayEvent;
  import org.apache.cayenne.modeler.util.CayenneAction;
  
  import javax.swing.tree.TreePath;
  import java.awt.event.ActionEvent;
  
  /**
   * @since 4.0
   */
  public abstract class BaseViewEntityAction extends CayenneAction {
  
      abstract protected Entity<?,?,?> getEntity();
  
      public BaseViewEntityAction(String name, Application application) {
          super(name, application);
      }
  
      /**
       * @see org.apache.cayenne.modeler.util.CayenneAction#performAction(ActionEvent)
       */
      @Override
      public void performAction(ActionEvent e) {
          viewEntity();
      }
  
      protected void viewEntity() {
          Entity<?,?,?> entity = getEntity();
          if(entity != null) {
              navigateToEntity(entity);
          }
      }
  
      public void navigateToEntity(Entity<?,?,?> entity) {
          TreePath path = buildTreePath(entity);
          editor().getProjectTreeView().getSelectionModel().setSelectionPath(path);
  
          EntityDisplayEvent event = new EntityDisplayEvent(
                  editor().getProjectTreeView(),
                  entity,
                  entity.getDataMap(),
                  (DataChannelDescriptor) getProjectController().getProject().getRootNode());
          if (entity instanceof DbEntity) {
              getProjectController().fireDbEntityDisplayEvent(event);
          } else if (entity instanceof ObjEntity){
              getProjectController().fireObjEntityDisplayEvent(event);
          }
      }
  }
  