LanEventPropertyFacade.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 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.LanEventProperty_;
import fi.codecrew.moya.beans.EventBeanLocal;
import fi.codecrew.moya.model.LanEvent;
import fi.codecrew.moya.model.LanEventProperty;
import fi.codecrew.moya.model.LanEventPropertyKey;
@Stateless
@LocalBean
public class LanEventPropertyFacade extends IntegerPkGenericFacade<LanEventProperty> {
public LanEventPropertyFacade() {
super(LanEventProperty.class);
}
@EJB
private EventBeanLocal eventbean;
public LanEventProperty find(LanEvent currentEvent, LanEventPropertyKey property) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<LanEventProperty> cq = cb.createQuery(LanEventProperty.class);
Root<LanEventProperty> root = cq.from(LanEventProperty.class);
CriteriaQuery<LanEventProperty> q = cq.where(cb.equal(root.get(LanEventProperty_.event), eventbean.getCurrentEvent()),
cb.equal(root.get(LanEventProperty_.key), property)
);
return getSingleNullableResult(getEm().createQuery(q));
}
}