PollFacade.java
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/*
* Copyright Codecrew Ry
*
* All rights reserved.
*
* This license applies to any software containing a notice placed by the
* copyright holder. Such software is herein referred to as the Software.
* This license covers modification, distribution and use of the Software.
*
* Any distribution and use in source and binary forms, with or without
* modification is not permitted without explicit written permission from the
* copyright owner.
*
* A non-exclusive royalty-free right is granted to the copyright owner of the
* Software to use, modify and distribute all modifications to the Software in
* future versions of the Software.
*
*/
package fi.codecrew.moya.facade;
import java.util.Date;
import java.util.List;
import javax.ejb.EJB;
import javax.ejb.LocalBean;
import javax.ejb.Stateless;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import fi.codecrew.moya.model.Poll_;
import fi.codecrew.moya.beans.EventBeanLocal;
import fi.codecrew.moya.model.LanEvent;
import fi.codecrew.moya.model.Poll;
@Stateless
@LocalBean
public class PollFacade extends IntegerPkGenericFacade<Poll> {
@EJB
private EventBeanLocal eventBean;
public PollFacade() {
super(Poll.class);
}
// private boolean pollIsUsable(Poll poll) {
// Date now = new Date();
//
// // Already valid
// if (poll.getBegin().after(now)) {
// logger.debug("Poll {} not opened yet", poll);
// return false;
// }
//
// // Still valid
// if (poll.getEnd().before(now)) {
// logger.debug("Poll {} already closed", poll);
// return false;
// }
//
// logger.debug("Poll has {} questions", poll.getQuestions());
// // At least one question that is on a page
// for (PollQuestion q : poll.getQuestions()) {
// logger.debug("Check question {} page {}", q, q.getPage());
// if (q.getPage() > 0) {
// return true;
// }
// }
//
// // No usable questions
// return false;
// }
@Override
public Poll find(Integer id)
{
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Poll> cq = cb.createQuery(Poll.class);
Root<Poll> root = cq.from(Poll.class);
cq.where(cb.equal(root.get(Poll_.id), id),
cb.equal(root.get(Poll_.event), eventBean.getCurrentEvent()));
return super.getSingleNullableResult(getEm().createQuery(cq));
}
public List<Poll> findAllUsable(LanEvent currentEvent) {
Date now = new Date();
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Poll> cq = cb.createQuery(Poll.class);
Root<Poll> root = cq.from(Poll.class);
cq.where(cb.equal(root.get(Poll_.event), currentEvent),
cb.lessThan(root.get(Poll_.begin), now),
cb.greaterThan(root.get(Poll_.end), now)
);
return getEm().createQuery(cq).getResultList();
}
public List<Poll> findAll() {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Poll> cq = cb.createQuery(Poll.class);
Root<Poll> root = cq.from(Poll.class);
cq.where(cb.equal(root.get(Poll_.event), eventBean.getCurrentEvent()));
return getEm().createQuery(cq).getResultList();
}
}