?????bm??

在BM中，通过如下标签

                
<a:form column="2" title="SYS_PROMPT.QUERY_TITLE" width="600">
    <cascade-operations>
      

可设置层级更新，例如：

                
    <?xml version="1.0" encoding="UTF-8"?>
<bm:model xmlns:bm="http://www.aurora-framework.org/schema/bm" extend="testcase.HR.DEPT" extendMode="override">
    <bm:cascade-operations>
        <bm:cascade-operation inputPath="EMPLOYEE-LIST" model="testcase.HR.EMP" operations="insert,update,delete"/>
    </bm:cascade-operations>
</bm:model>
      

                
<dept-list>
  <dept _status="insert" dname="new dept 1">
     <EMPLOYEE-LIST>
        <emp _status="insert" ename="new employee 1" />
        <emp _status="insert" ename="new employee 2" />
     </EMPLOYEE-LIST>
</dept-list>
      

如果要对多个detail表进行更新，那么在cascade-operations下面设置多条cascade-operation标记就可以了，每条对应一个detail表。