/**
* Copyright SocialSite (C) 2009
*
* 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 com.socialsite.dataprovider;
import java.util.Iterator;
import org.apache.wicket.extensions.markup.html.repeater.util.SortableDataProvider;
import org.apache.wicket.injection.web.InjectorHolder;
import org.apache.wicket.model.IModel;
import org.apache.wicket.spring.injection.annot.SpringBean;
import com.socialsite.dao.CourseDao;
import com.socialsite.dao.UserDao;
import com.socialsite.entitymodel.EntityModel;
import com.socialsite.persistence.User;
public class CourseStudentsDataProvider extends SortableDataProvider<User>
{
/**
*
*/
private static final long serialVersionUID = 1L;
private final long courseId;
@SpringBean(name = "courseDao")
private CourseDao courseDao;
@SpringBean(name = "userDao")
private UserDao<User> userDao;
public CourseStudentsDataProvider(long courseId)
{
this.courseId = courseId;
// intializes spring DAO
InjectorHolder.getInjector().inject(this);
}
public Iterator<? extends User> iterator(int first, int count)
{
return courseDao.getStudents(courseId, first, count).iterator();
}
public IModel<User> model(User user)
{
return new EntityModel<User>(user, userDao);
}
public int size()
{
return courseDao.getStudentsCount(courseId);
}
}