ApprovalFacade.java 1.92 KB
/*
 * 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.beans.EventBeanLocal;
import fi.codecrew.moya.model.Approval;
import fi.codecrew.moya.model.Approval_;

@Stateless
@LocalBean
public class ApprovalFacade extends IntegerPkGenericFacade<Approval> {

	@EJB
	private EventBeanLocal eventbean;

	public ApprovalFacade() {
		super(Approval.class);
	}

	public Approval findOrCreate(String approvalName) {
		Approval ret = find(approvalName);
		if (ret == null)
		{
			ret = new Approval();
			ret.setEvent(eventbean.getCurrentEvent());
			ret.setName(approvalName);
			ret.setDescription("Automagically created");
			create(ret);
		}
		return ret;
	}

	public Approval find(String approvalName)
	{
		CriteriaBuilder cb = getEm().getCriteriaBuilder();
		CriteriaQuery<Approval> cq = cb.createQuery(Approval.class);
		Root<Approval> root = cq.from(Approval.class);

		cq.where(cb.equal(root.get(Approval_.event), eventbean.getCurrentEvent()),
				cb.equal(root.get(Approval_.name), approvalName)
				);

		return super.getSingleNullableResult(getEm().createQuery(cq));

	}
}