/
DiagramOperation.java
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/
DiagramOperation.java
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/*******************************************************************************
* JetUML - A desktop application for fast UML diagramming.
*
* Copyright (C) 2020 by McGill University.
*
* See: https://github.com/prmr/JetUML
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses.
*******************************************************************************/
package ca.mcgill.cs.jetuml.diagram.builder;
/**
* Represents an operation to change a diagram, that
* can be undone. Operations are only required to be valid
* for a single execution and a single undoing in a row.
*/
public interface DiagramOperation
{
/**
* Executes the operation.
*/
void execute();
/**
* Undoes the operation.
*/
void undo();
}