JpaPublisherDAO.java

/*
 * D.A.O. for JPA  
 * Created on 17 d�c. 2012 ( Time 15:40:00 )
 */

package org.demo.publisher.dao;

import java.util.ArrayList;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.telosys.starterkits.strutsjpa.CoreUtils;
import org.telosys.starterkits.strutsjpa.GenericJpaDao;

import org.demo.publisher.bean.Publisher;

public class JpaPublisherDAO extends GenericJpaDao<Publisher, Integer> {

	private static final Predicate[] ap = {};
	
	/**
	 * Constructs a DAO for Publisher
	 */
	public JpaPublisherDAO() {
		super(Publisher.class);
	}
	
	/**
	 * Search by Publisher example
	 */
	public List<Publisher> search(final Publisher element) {
		final EntityManager em = getEntityManager();
		if ( element != null  ) {
			CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
			CriteriaQuery<Publisher> criteriaQuery = criteriaBuilder.createQuery(Publisher.class);
			Root<Publisher> from = criteriaQuery.from(Publisher.class);

			List<Predicate> listP = new ArrayList<Predicate>();


			if (CoreUtils.isNotBlank(element.getCode())) {
				Predicate predicate = criteriaBuilder.equal(from.get("code"), element.getCode());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getCountryCode())) {
				Predicate predicate = criteriaBuilder.equal(from.get("countryCode"), element.getCountryCode());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getName())) {
				Predicate predicate = criteriaBuilder.equal(from.get("name"), element.getName());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getEmail())) {
				Predicate predicate = criteriaBuilder.equal(from.get("email"), element.getEmail());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getContact())) {
				Predicate predicate = criteriaBuilder.equal(from.get("contact"), element.getContact());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getCity())) {
				Predicate predicate = criteriaBuilder.equal(from.get("city"), element.getCity());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getZipCode())) {
				Predicate predicate = criteriaBuilder.equal(from.get("zipCode"), element.getZipCode());
				listP.add(predicate);
			}
			if (CoreUtils.isNotBlank(element.getPhone())) {
				Predicate predicate = criteriaBuilder.equal(from.get("phone"), element.getPhone());
				listP.add(predicate);
			}
			
			criteriaQuery.where(listP.toArray(ap));
			TypedQuery<Publisher> tq = em.createQuery(criteriaQuery);
			return tq.getResultList();
		}
		else
		{
    		return this.loadAll();
		}
	}

}