JpaOfferFinder.java

/*
 * Copyright 2011-2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package pl.com.bottega.ecommerce.sales.readmodel.impl;

import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import pl.com.bottega.ddd.annotations.domain.FinderImpl;
import pl.com.bottega.ecommerce.sales.readmodel.offer.Offer;
import pl.com.bottega.ecommerce.sales.readmodel.offer.OfferedProductDto;
import pl.com.bottega.ecommerce.sales.readmodel.offer.OfferQuery;

@FinderImpl
public class JpaOfferFinder implements Offer {

	@PersistenceContext
	private EntityManager entityManager;

	@SuppressWarnings("unchecked")
	@Override
	public List<OfferedProductDto> find(OfferQuery query) {
		@SuppressWarnings("unused")
		boolean bestBeforeExpired = query.isBestBeforeExpired();
		// TODO take into consideration in query

		return (List<OfferedProductDto>) entityManager
				.createQuery(
						"SELECT NEW pl.com.bottega.ecommerce.sales.readmodel.offer.ProductDto(p.aggregateId) FROM Product p")
				.getResultList();
	}

}