de.tuclausthal.submissioninterface.persistence.dao.impl.TaskNumberDAO.java Source code

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Here is the source code for de.tuclausthal.submissioninterface.persistence.dao.impl.TaskNumberDAO.java

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/*
 * Copyright 2011 Sven Strickroth <email@cs-ware.de>
 * 
 * This file is part of the SubmissionInterface.
 * 
 * SubmissionInterface is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 * 
 * SubmissionInterface 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 SubmissionInterface. If not, see <http://www.gnu.org/licenses/>.
 */

package de.tuclausthal.submissioninterface.persistence.dao.impl;

import java.util.List;

import org.hibernate.LockMode;
import org.hibernate.Session;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;

import de.tuclausthal.submissioninterface.persistence.dao.TaskNumberDAOIf;
import de.tuclausthal.submissioninterface.persistence.datamodel.Participation;
import de.tuclausthal.submissioninterface.persistence.datamodel.Submission;
import de.tuclausthal.submissioninterface.persistence.datamodel.Task;
import de.tuclausthal.submissioninterface.persistence.datamodel.TaskNumber;

/**
 * Data Access Object implementation for the TaskNumberDAOIf
 * @author Sven Strickroth
 */
public class TaskNumberDAO extends AbstractDAO implements TaskNumberDAOIf {
    public TaskNumberDAO(Session session) {
        super(session);
    }

    @Override
    public List<TaskNumber> getTaskNumbersForSubmission(Submission submission) {
        return getSession().createCriteria(TaskNumber.class).add(Restrictions.eq("submission", submission))
                .addOrder(Order.asc("tasknumberid")).list();
    }

    @Override
    public List<TaskNumber> getTaskNumbersForTaskLocked(Task task, Participation participation) {
        return getSession().createCriteria(TaskNumber.class).add(Restrictions.eq("task", task))
                .add(Restrictions.eq("participation", participation)).addOrder(Order.asc("tasknumberid"))
                .setLockMode(LockMode.UPGRADE).list();
    }

    @Override
    public void assignTaskNumbersToSubmission(Submission submission, Participation participation) {
        // only assign new numbers if not already numbers exist
        if (getTaskNumbersForSubmission(submission).size() == 0) {
            for (TaskNumber taskNumber : getTaskNumbersForTaskLocked(submission.getTask(), participation)) {
                taskNumber.setSubmission(submission);
                getSession().update(taskNumber);
            }
        }
    }
}