// Get Session Factory
ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("root-context.xml");
DefaultSqlSessionFactory sqlSessionFactory=(DefaultSqlSessionFactory)ctx.getBean("sqlSessionFactory");

for (String table : myJobInfo.tableList) {
... 
    CleanExpiredDataJobThread ct=new CleanExpiredDataJobThread();
    ct.setParams(index,table,myJobInfo.expiredDate,myJobInfo.commitSize,sqlSessionFactory,this);
    new Thread(ct).start();
...
}

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.defaults.DefaultSqlSessionFactory;

public class CleanExpiredDataJobThread extends AbstractJob implements Job,Runnable {
    private org.apache.ibatis.session.defaults.DefaultSqlSessionFactory sqlSessionFactory;
    
    ....


    @Override
    public void run(){
        logger.info("Start...");
        long startTime = System.currentTimeMillis();
        
        try {
            SqlSession sqlSession = null;
            sqlSession = sqlSessionFactory.openSession();
            
            // get connection and set it's auto-commit status to false
            Connection conn = getConnection(sqlSession);
            
            ....
        }catch(Exception ex) {
            ex.printStackTrace();
        }finally {
            
        }
        
    }
}