ProductFacade.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.Arrays;
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.beans.EventBeanLocal;
import fi.codecrew.moya.model.LanEvent;
import fi.codecrew.moya.model.Product;
import fi.codecrew.moya.model.ProductFlag;
import fi.codecrew.moya.model.Product_;
@Stateless
@LocalBean
public class ProductFacade extends IntegerPkGenericFacade<Product> {
@EJB
private EventBeanLocal eventbean;
public ProductFacade() {
super(Product.class);
}
public List<Product> findAll()
{
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Product> cq = cb.createQuery(Product.class);
Root<Product> root = cq.from(Product.class);
cq.where(cb.equal(root.get(Product_.event), eventbean.getCurrentEvent()));
cq.orderBy(cb.asc(root.get(Product_.sort)));
return getEm().createQuery(cq).getResultList();
}
public Product getCreditProduct() {
throw new RuntimeException();
}
public List<Product> findProductsByPrice(BigDecimal price) {
return findProductsByPrice(price, eventbean.getCurrentEvent());
}
public List<Product> findProductsByPrice(BigDecimal price, LanEvent event) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Product> cq = cb.createQuery(Product.class);
Root<Product> root = cq.from(Product.class);
cq.where(cb.equal(root.get(Product_.event), event),
cb.equal(root.get(Product_.price), price));
return getEm().createQuery(cq).getResultList();
}
public List<Product> findProductsByFlag(ProductFlag... productFlags) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Product> cq = cb.createQuery(Product.class);
Root<Product> root = cq.from(Product.class);
cq.where(cb.equal(root.get(Product_.event), eventbean.getCurrentEvent()),
root.get(Product_.productFlags).in(Arrays.asList(productFlags)));
cq.orderBy(cb.asc(root.get(Product_.sort)));
return getEm().createQuery(cq).getResultList();
}
public Product findProductByBarcode(String barcode) {
CriteriaBuilder cb = getEm().getCriteriaBuilder();
CriteriaQuery<Product> cq = cb.createQuery(Product.class);
Root<Product> root = cq.from(Product.class);
cq.where(
cb.equal(root.get(Product_.event), eventbean.getCurrentEvent()),
cb.equal(root.get(Product_.barcode), barcode)
);
return super.getSingleNullableResult(getEm().createQuery(cq));
}
}