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From "market sniffer" <market.snif...@gmail.com>
Subject Re: ibatis 2.1.7 build #597 value object problem
Date Wed, 23 Apr 2008 00:46:42 GMT
thanks a lot!



2008/4/21, Clinton Begin <clinton.begin@gmail.com>:
>
> Two solutions to this one:
>
> 1) Turn lazy loading off
>
> 2) Use a join mapping (which will be faster anyway) << preferred.
>
> This is a known limitation of the lazy loader, but something we could
> probably fix too.
>
> Clinton
>
> On Mon, Apr 21, 2008 at 2:44 AM, market sniffer <market.sniffer@gmail.com>
> wrote:
>
> > hi:
> >
> > i try to select from a table with no rows of data and uses the following
> > resultMap as return
> >
> > <!-- definitions of another statement which has the following
> > selection-->
> > ....
> > <result property="mktTotalIncome" column="HDBH"
> > select="marketing.mktTotalIncome"/>
> > ...
> >
> >  <select id="mktTotalIncome" parameterClass="java.lang.String"
> > resultMap="get-mktTotalIncome-result">
> >   select
> >    MARKETING_ID,
> >    INCOME_TOTAL_AIM,
> >    INCOME_TOTAL_ACTUAL,
> >    BEFORE_ARPU_THREE,
> >    BEFORE_ARPU_TWO,
> >    BEFORE_ARPU_ONE,
> >    AFTER_ARPU_ONE,
> >    AFTER_ARPU_TWO,
> >    AFTER_ARPU_THREE
> >   from da.TABA_MARKET_TOTAL_INCOME
> >   where MARKETING_ID = #marketingId#
> >  </select>
> >
> >  <resultMap id="get-mktTotalIncome-result" class="MktTotalIncomeVO">
> >   <result property="marketing_id" column="MARKETING_ID"/>
> >   <result property="income_total_aim" column="INCOME_TOTAL_AIM"
> > nullValue="0"/>
> >   <result property="income_total_actual" column="INCOME_TOTAL_ACTUAL"
> > nullValue="0"/>
> >   <result property="before_arpu_three" column="BEFORE_ARPU_THREE"
> > nullValue="0"/>
> >   <result property="before_arpu_two" column="BEFORE_ARPU_TWO"
> > nullValue="0"/>
> >   <result property="before_arpu_one" column="BEFORE_ARPU_ONE"
> > nullValue="0"/>
> >   <result property="after_arpu_one" column="AFTER_ARPU_ONE"
> > nullValue="0"/>
> >   <result property="after_arpu_two" column="AFTER_ARPU_TWO"
> > nullValue="0"/>
> >   <result property="after_arpu_three" column="AFTER_ARPU_THREE"
> > nullValue="0"/>
> >  </resultMap>
> >
> > since there is no data, i am expecting the the field "mktTotalIncome" to
> > return null, however i got the return of a MktTotalIncomeVO with its fields
> > set to null, and which in turn is causing some of the arithmatic problems.
> >
> > i am wondering why it does not return NULL  but a new object with fields
> > set to null?
> >
> > thanks.
> >
>
>

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