TaskDocumentOrderComparator.java example

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ganttproject-master
/*
GanttProject is an opensource project management tool.
Copyright (C) 2011 GanttProject Team

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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package net.sourceforge.ganttproject.task;

import java.util.Comparator;

class TaskDocumentOrderComparator implements Comparator<Task> {
  private final TaskManagerImpl myManager;

  TaskDocumentOrderComparator(TaskManagerImpl taskManager) {
    myManager = taskManager;
  }

  @Override
  public int compare(Task task1, Task tasl2) {
    // TODO assert can be removed since it is checked by Java compiler?
    assert (task1 instanceof Task && tasl2 instanceof Task) : "I compare only tasks";
    return myManager.getTaskHierarchy().compareDocumentOrder(task1, tasl2);
  }
}