com.gwac.dao.ConfigFileDaoImpl.java Source code

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Here is the source code for com.gwac.dao.ConfigFileDaoImpl.java

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package com.gwac.dao;

import com.gwac.model.ConfigFile;
import java.math.BigInteger;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;

/**
 *
 * @author xy
 */
public class ConfigFileDaoImpl extends BaseHibernateDaoImpl<ConfigFile> implements ConfigFileDao {

    public void moveDataToHisTable() {

        Session session = getCurrentSession();
        String sql = "WITH moved_rows AS ( DELETE FROM config_file RETURNING * ) INSERT INTO config_file_his SELECT * FROM moved_rows;";
        session.createSQLQuery(sql).executeUpdate();
    }

    public Boolean exist(ConfigFile obj) {
        Boolean flag = false;
        Session session = getCurrentSession();
        String sql = "select cf_id from config_file where file_name='" + obj.getFileName() + "' ";
        Query q = session.createSQLQuery(sql);
        if (!q.list().isEmpty()) {
            BigInteger cfId = (BigInteger) q.list().get(0);
            obj.setCfId(cfId.longValue());
            flag = true;
        }
        return flag;
    }

    public List<ConfigFile> getTopNUnSync(int topn) {

        String sql = "with updated_rows as"
                + "(with tmp as (select min(cf_id) min_id from config_file where is_sync=false) "
                + "update config_file set is_sync=true " + "where cf_id<(select min_id+" + topn
                + " from tmp) and cf_id>=(select min_id from tmp) returning *) " + "select * from updated_rows;";

        Session session = getCurrentSession();
        Query q = session.createSQLQuery(sql).addEntity(ConfigFile.class);
        return q.list();
    }
}