MDaoImpl.java

package org.joonzis.dao;

import org.apache.ibatis.session.SqlSession;
import org.joonzis.mybatis.config.DBService;
import org.joonzis.vo.MVO;

public class MDaoImpl implements MDao{
	// DAO 객체 생성
	private static MDaoImpl instance = null;
	private MDaoImpl() {}
	public static MDaoImpl getInstance() {
		if(instance == null) {
			instance = new MDaoImpl();
		}
		return instance;
	}
	
	// 필드
	private static SqlSession sqlsession = null;
	private synchronized static SqlSession getSqlSession() {
		if(sqlsession == null) {
			sqlsession = DBService.getFactory().openSession(false);
		}
		return sqlsession;
	}
	
	@Override
	public int goJoin(MVO mvo) {
		int result = getSqlSession().insert("insert_join", mvo); 
		if(result > 0) {
			getSqlSession().commit();
		}
		return result; 
	}
	@Override
	public int ckMember(MVO mvo) {
		return getSqlSession().selectOne("select_member_ck", mvo);
	}
	@Override
	public MVO getMember(MVO mvo) {
		return getSqlSession().selectOne("select_member", mvo);
	}
}