/**
* Copyright (c) 2012, Lindsay Bradford and other Contributors.
* All rights reserved.
*
* This program and the accompanying materials are made available
* under the terms of the BSD 3-Clause licence which accompanies
* this distribution, and is available at
* http://opensource.org/licenses/BSD-3-Clause
*/
package blacksmyth.personalfinancier.control.budget.command;
import javax.swing.undo.CannotRedoException;
import javax.swing.undo.CannotUndoException;
import blacksmyth.personalfinancier.model.budget.BudgetModel;
public class ChangeExpenseDescriptionCommand extends AbstractBudgetCommand {
private BudgetModel model;
private int itemIndex;
private String preCommandDescription;
private String postCommandDescription;
public static ChangeExpenseDescriptionCommand doCmd(BudgetModel model, int itemIndex,
String postCommandDescription) {
ChangeExpenseDescriptionCommand command = new ChangeExpenseDescriptionCommand(
model,
itemIndex,
model.getExpenseItems().get(itemIndex).getDescription(),
postCommandDescription
);
command.redo();
return command;
}
protected ChangeExpenseDescriptionCommand(BudgetModel model, int itemIndex,
String preCommandDescription, String postCommandDescription) {
this.model = model;
this.itemIndex = itemIndex;
this.preCommandDescription = preCommandDescription;
this.postCommandDescription = postCommandDescription;
}
@Override
public boolean isSignificant() {
if (this.preCommandDescription.equals(this.postCommandDescription)) {
return false;
}
return true;
}
@Override
public void redo() throws CannotRedoException {
model.setExpenseItemDescription(
itemIndex,
postCommandDescription
);
}
@Override
public void undo() throws CannotUndoException {
model.setExpenseItemDescription(
itemIndex,
preCommandDescription
);
}
}