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   *  distributed with this work for additional information
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   *  to you under the Apache License, Version 2.0 (the
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  package org.apache.cayenne.modeler.undo;
  
  import javax.swing.undo.CannotRedoException;
  import javax.swing.undo.CannotUndoException;
  
  import org.apache.cayenne.configuration.DataChannelDescriptor;
  import org.apache.cayenne.configuration.DataNodeDescriptor;
  import org.apache.cayenne.modeler.Application;
  import org.apache.cayenne.modeler.action.CreateNodeAction;
  import org.apache.cayenne.modeler.action.RemoveAction;
  
  public class CreateNodeUndoableEdit extends CayenneUndoableEdit {
  
      @Override
      public String getPresentationName() {
          return "Create DataNode";
      }
  
      private DataNodeDescriptor node;
      private DataChannelDescriptor domain;
  
      public CreateNodeUndoableEdit(Application application, DataNodeDescriptor node) {
          this.domain = (DataChannelDescriptor) Application
                  .getInstance()
                  .getProject()
                  .getRootNode();
          this.node = node;
      }
  
      @Override
      public void undo() throws CannotUndoException {
          RemoveAction action = actionManager.getAction(RemoveAction.class);
          action.removeDataNode(node);
      }
  
      public void redo() throws CannotRedoException {
          domain.getNodeDescriptors().add(node);
          CreateNodeAction action = actionManager.getAction(CreateNodeAction.class);
          action.createDataNode(node);
      }
  }
  