net.groupbuy.dao.impl.AreaDaoImpl.java Source code

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Here is the source code for net.groupbuy.dao.impl.AreaDaoImpl.java

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/*
 * Copyright 2005-2013 shopxx.net. All rights reserved.
 * Support: http://www.shopxx.net
 * License: http://www.shopxx.net/license
 */
package net.groupbuy.dao.impl;

import java.util.List;

import javax.persistence.FlushModeType;
import javax.persistence.TypedQuery;

import net.groupbuy.dao.AreaDao;
import net.groupbuy.entity.Area;

import org.springframework.stereotype.Repository;

/**
 * Dao - 
 * 
 * @author SHOP++ Team
 * @version 3.0
 */
@Repository("areaDaoImpl")
public class AreaDaoImpl extends BaseDaoImpl<Area, Long> implements AreaDao {

    public List<Area> findRoots(Integer count) {
        String jpql = "select area from Area area where area.parent is null order by area.order asc";
        TypedQuery<Area> query = entityManager.createQuery(jpql, Area.class).setFlushMode(FlushModeType.COMMIT);
        if (count != null) {
            query.setMaxResults(count);
        }
        return query.getResultList();
    }

}