uniol.aptgui.commands.CompoundCommand.java Source code

Introduction

Here is the source code for uniol.aptgui.commands.CompoundCommand.java

Source

/*-
 * APT - Analysis of Petri Nets and labeled Transition systems
 * Copyright (C) 2016 Jonas Prellberg
 *
 * 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 2 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package uniol.aptgui.commands;

import java.util.ArrayList;
import java.util.List;

import com.google.common.collect.Lists;

/**
 * Command that consists of sub commands. They are executed in order and undone
 * in reverse order.
 */
public class CompoundCommand extends Command {

    private final String name;
    private final List<Command> subCommands;

    public CompoundCommand(String name) {
        this.name = name;
        this.subCommands = new ArrayList<>();
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public void execute() {
        for (Command cmd : subCommands) {
            cmd.execute();
        }
    }

    @Override
    public void undo() {
        for (Command cmd : Lists.reverse(subCommands)) {
            cmd.undo();
        }
    }

    @Override
    public void redo() {
        for (Command cmd : subCommands) {
            cmd.redo();
        }
    }

    /**
     * Adds a new command that will become part of this compound command.
     *
     * @param command
     *                command to add
     */
    public void addCommand(Command command) {
        subCommands.add(command);
    }

}

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