ibatis一对多映射

 

中继VO如下属性：

public class RelayInfoVO {
  //中继信息
  private String bswitcherNames;//本端局
  private String dswitcherNames;//对端局
  private String signalStatCount;//信令数
  private String relayStatCount;//中继数
  private List signalVO;//信令List,用来存放信令List的
  
  ……

 

=====================================================================================
信令VO如下属性：

public class SignalInfoVO {
  //信令信息
  private String bswitchers;//本端局
  private String dswitchers;//对端局
  private String signalType;//信令类型
  private String signalCount;//信令个数

  ……

 =====================================================================================
ibatis的XML如下配置：
注：为中继VO,column="{bswitcherNames=bswitcherName,dswitcherNames=DSWITCHERNAME}" 是为select="getSignalInfo"所传递的参数。select="getSignalInfo"为所要调用的SELECT查询语句。

  <resultMap id="RelayInfoVO-Result-list" class="com.harvest.ermis.rscount.domain.RelayInfoVO">
    <result property="bswitcherNames" column="BSWITCHERNAME" nullValue=""/>
    <result property="dswitcherNames" column="DSWITCHERNAME" nullValue=""/>
    <result property="signalStatCount" column="SIGNALSTATCOUNT" nullValue=""/>
    <result property="relayStatCount" column="RELAYSTATCOUNT" nullValue=""/>
    <result property="signalVO" column="{bswitcherNames=bswitcherName,dswitcherNames=DSWITCHERNAME}" select="getSignalInfo"/>
  </resultMap>

 


注：为信令VO 
 

<resultMap id="SignalInfoVO-Result-list" class="com.harvest.ermis.rscount.domain.SignalInfoVO">
    <result property="bswitchers" column="BSWITCHERS" nullValue=""/>
    <result property="dswitchers" column="DSWITCHERS" nullValue=""/>
    <result property="signalType" column="SIGNALTYPE" nullValue=""/>
    <result property="signalCount" column="SIGCOUTN" nullValue=""/>
  </resultMap>



  <select id="getRSInfo" resultMap="RelayInfoVO-Result-list">
    
      ……

  </select>


<select id="getSignalInfo" resultMap="SignalInfoVO-Result-list">
        select c.switcherName as BSWITCHERS,b.switcherName as DSWITCHERS,linkType as SIGNALTYPE,count(*) as SIGCOUTN
        where 
          c.switcherName=#bswitcherNames#
        and b.switcherName=#dswitcherNames#
        group by b.switcherName,b.ATTACHING,c.switcherName,linktype
        order by c.switcherName,b.SWITCHERORDER,linktype
  </select>