AccountEventFacade.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.math.BigDecimal;
import java.util.ArrayList;
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.Path;
import javax.persistence.criteria.Root;
import fi.codecrew.moya.beans.EventBeanLocal;
import fi.codecrew.moya.model.AccountEvent;
import fi.codecrew.moya.model.AccountEvent_;
import fi.codecrew.moya.model.EventUser;
import fi.codecrew.moya.model.LanEvent;
import fi.codecrew.moya.model.Product;
import fi.codecrew.moya.model.Product_;
import fi.codecrew.moya.model.Role;
import fi.codecrew.moya.model.Role_;
@Stateless
@LocalBean
public class AccountEventFacade extends IntegerPkGenericFacade<AccountEvent> {
public AccountEventFacade() {
super(AccountEvent.class);
}
@EJB
private EventBeanLocal eventbean;
public List<Role> findProvidedRoles(LanEvent event, EventUser u) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Role> cq = cb.createQuery(Role.class);
Root<AccountEvent> root = cq.from(AccountEvent.class);
Path<Role> role = root.get(AccountEvent_.product).get(Product_.provides);
cq.select(role);
cq.where(
cb.equal(role.get(Role_.event), event),
cb.equal(root.get(AccountEvent_.user), u)
);
// TypedQuery<Role> q =
// em.createQuery("select distinct ac.product.provides from AccountEvent ac where ac.id.eventId = :eventid and ac.user = :user and ac.product.provides is not null",
// Role.class);
// q.setParameter("eventid", event.getId());
// q.setParameter("user", u);
return getEm().createQuery(cq).getResultList();
}
public List<Role> findProvidedRoles_OLD(LanEvent event, EventUser u) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Role> cq = cb.createQuery(Role.class);
Root<Role> root = cq.from(Role.class);
cq.where(
cb.equal(root.get(Role_.event), event),
cb.equal(root.join(Role_.productsProvide).join(Product_.accountEvents).get(AccountEvent_.user), u)
);
// TypedQuery<Role> q =
// em.createQuery("select distinct ac.product.provides from AccountEvent ac where ac.id.eventId = :eventid and ac.user = :user and ac.product.provides is not null",
// Role.class);
// q.setParameter("eventid", event.getId());
// q.setParameter("user", u);
return getEm().createQuery(cq).getResultList();
}
public List<AccountEvent> getAccountEvents(EventUser user) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<AccountEvent> cq = cb.createQuery(AccountEvent.class);
Root<AccountEvent> root = cq.from(AccountEvent.class);
cq.where(cb.equal(root.get(AccountEvent_.user), user),
cb.equal(root.get(AccountEvent_.product).get(Product_.event), eventbean.getCurrentEvent())
);
return getEm().createQuery(cq).getResultList();
}
public BigDecimal getProductCount(List<Product> list) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<BigDecimal> cq = cb.createQuery(BigDecimal.class);
Root<AccountEvent> root = cq.from(AccountEvent.class);
List<Integer> ids = new ArrayList<Integer>();
for (Product l : list) {
ids.add(l.getId());
}
cq.where(root.get(AccountEvent_.product).get(Product_.id).in(ids));
cq.select(cb.sum(root.get(AccountEvent_.quantity)));
return super.getSingleNullableResult(getEm().createQuery(cq));
}
public BigDecimal getProductCount(List<Product> list, EventUser eventuser) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<BigDecimal> cq = cb.createQuery(BigDecimal.class);
Root<AccountEvent> root = cq.from(AccountEvent.class);
List<Integer> ids = new ArrayList<Integer>();
for (Product l : list) {
ids.add(l.getId());
}
cq.where(root.get(AccountEvent_.product).get(Product_.id).in(ids),
cb.equal(root.get(AccountEvent_.user), eventuser));
cq.select(cb.sum(root.get(AccountEvent_.quantity)));
return super.getSingleNullableResult(getEm().createQuery(cq));
}
}