/*
* This file is part of LibrePlan
*
* Copyright (C) 2009-2010 Fundación para o Fomento da Calidade Industrial e
* Desenvolvemento Tecnolóxico de Galicia
* Copyright (C) 2010-2011 Igalia, S.L.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.libreplan.business.trees;
import java.util.List;
/**
* @author Óscar González Fernández <ogonzalez@igalia.com>
*
*/
public interface ITreeNode<T extends ITreeNode<T>> {
ITreeParentNode<T> getParent();
List<T> getChildren();
ITreeParentNode<T> toContainer();
T toLeaf();
/**
* Using <a href="http://www.angelikalanger.com/GenericsFAQ/FAQSections/ProgrammingIdioms.html#FAQ206"
* >getThis trick</a>
* @return
*/
T getThis();
boolean isLeaf();
/**
* Checks if a leaf is or not empty. <br />
* An empty leaf is defined as:
* <ul>
* <li>A leaf with number of hours zero</li>
* <li>A leaf without direct criteria assigned</li>
* <li>A leaf without progress</li>
* <li>A leaf without quality forms</li>
* <li>A leaf without labels</li>
* <li>A leaf without work report lines devoting time to it</li>
* <li>A leaf without resource allocations (not assigned yet)</li>
* </ul>
*/
boolean isEmptyLeaf();
boolean isUpdatedFromTimesheets();
boolean isJiraIssue();
}