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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 org.apache.cayenne.dbsync.reverse.dbimport.ReverseEngineering;
  import org.apache.cayenne.modeler.ProjectController;
  import org.apache.cayenne.modeler.dialog.db.load.DbImportTreeNode;
  import org.apache.cayenne.modeler.editor.dbimport.DbImportTree;
  
  import javax.swing.undo.AbstractUndoableEdit;
  import javax.swing.undo.CannotRedoException;
  import javax.swing.undo.CannotUndoException;
  import java.util.List;
  
  /**
   * @since 4.1
   */
  public class DbImportTreeUndoableEdit extends AbstractUndoableEdit {
  
      private ReverseEngineering previousReverseEngineering;
      private ReverseEngineering nextReverseEngineering;
      private DbImportTree tree;
      private ProjectController projectController;
  
      public DbImportTreeUndoableEdit(ReverseEngineering previousReverseEngineering, ReverseEngineering nextReverseEngineering,
                                      DbImportTree tree, ProjectController projectController) {
          this.tree = tree;
          this.previousReverseEngineering = previousReverseEngineering;
          this.nextReverseEngineering = nextReverseEngineering;
          this.projectController = projectController;
      }
  
      @Override
      public boolean canRedo() {
          return true;
      }
  
      @Override
      public void redo() throws CannotRedoException {
          tree.stopEditing();
          tree.setReverseEngineering(this.nextReverseEngineering);
          List<DbImportTreeNode> list = tree.getTreeExpandList();
          projectController.getApplication().getMetaData().add(projectController.getCurrentDataMap(), tree.getReverseEngineering());
          projectController.setDirty(true);
          tree.translateReverseEngineeringToTree(tree.getReverseEngineering(), false);
          tree.expandTree(list);
      }
  
      @Override
      public void undo() throws CannotUndoException {
          tree.stopEditing();
          tree.setReverseEngineering(this.previousReverseEngineering);
          List<DbImportTreeNode> list = tree.getTreeExpandList();
          projectController.getApplication().getMetaData().add(projectController.getCurrentDataMap(), tree.getReverseEngineering());
          projectController.setDirty(true);
          tree.translateReverseEngineeringToTree(tree.getReverseEngineering(), false);
          tree.expandTree(list);
      }
  }
  