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Posted to ojb-user@db.apache.org by "ludovic.bert" <lu...@voila.fr> on 2003/08/06 16:19:42 UTC

How to use the attribute tag?

Hello all!

I'm using OJB, and want to load all InventaireTable of a TransportFiche where the InventaireTable.typeVisiteDossier=2
to do this I use the attribute tag using : <attribute attribute-name="typeVisiteDossier" attribute-value="2"/>. But OJB load all 
InventaireTable of the TransportFiche including typeVisiteDossier=1. I think the repository.xml is bad configured or the attribute 
tag was created to do this. I don't know what is wrong. Could someone help me please.

Fragment of the repository.xml:

<!-- Definitions for com.mps.safari.gestion.TransportFiche -->
<class-descriptor class="com.mps.safari.gestion.TransportFiche" table="trajet">
     <field-descriptor id="1" name="id" column="TRAJET_ID" jdbc-type="BIGINT" primarykey="true" autoincrement="true"/>
     ...
     <collection-descriptor name="inventaires" element-class-ref="com.mps.safari.gestion.InventaireTable">
          <inverse-foreignkey field-ref="codeVisiteDossier"/>
          <attribute attribute-name="typeVisiteDossier" attribute-value="2"/>
     </collection-descriptor>
</class-descriptor>

<!-- Definitions for com.mps.safari.gestion.InventaireTable -->
<class-descriptor class="com.mps.safari.gestion.InventaireTable" table="inventaire">
     <field-descriptor id="1" name="id" column="INVENTAIRE_ID" jdbc-type="BIGINT" primarykey="true" autoincrement="true"/>
     ...
     <field-descriptor id="3" name="typeVisiteDossier" column="TYPE_VISITE_DOSSIER" jdbc-type="INTEGER"/>
     <field-descriptor id="4" name="codeVisiteDossier" column="CODE_VISITE_DOSSIER" jdbc-type="BIGINT"/>
     ...
   </class-descriptor>

------------------------------------------

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Re: How to use the attribute tag?

Posted by Thomas Cornet <th...@cornet.name>.
Attributes only work with a query customizer. A query customizer implements 
interface org.apache.ojb.broker.accesslayer.QueryCustomizer and allows you 
to modify the way the collections is created.

Your repository.xml should look like this :

<collection-descriptor
         name="liste"
         ...
 >
         <inverse-foreignkey field-ref="..."/>

         <query-customizer class="package.YourQueryCustomizer">
                 <attribute attribute-name="<paramName>" 
attribute-value="<paramValue>" />
         </query-customizer>
</collection-descriptor>


For a little miore info, see the bottom of page '/doc/tutorial3.html'.

Thomas

At 16:19 06/08/2003, you wrote:
>Hello all!
>
>I'm using OJB, and want to load all InventaireTable of a TransportFiche 
>where the InventaireTable.typeVisiteDossier=2
>to do this I use the attribute tag using : <attribute 
>attribute-name="typeVisiteDossier" attribute-value="2"/>. But OJB load all
>InventaireTable of the TransportFiche including typeVisiteDossier=1. I 
>think the repository.xml is bad configured or the attribute
>tag was created to do this. I don't know what is wrong. Could someone help 
>me please.
>
>Fragment of the repository.xml:
>
><!-- Definitions for com.mps.safari.gestion.TransportFiche -->
><class-descriptor class="com.mps.safari.gestion.TransportFiche" 
>table="trajet">
>      <field-descriptor id="1" name="id" column="TRAJET_ID" 
> jdbc-type="BIGINT" primarykey="true" autoincrement="true"/>
>      ...
>      <collection-descriptor name="inventaires" 
> element-class-ref="com.mps.safari.gestion.InventaireTable">
>           <inverse-foreignkey field-ref="codeVisiteDossier"/>
>           <attribute attribute-name="typeVisiteDossier" attribute-value="2"/>
>      </collection-descriptor>
></class-descriptor>
>
><!-- Definitions for com.mps.safari.gestion.InventaireTable -->
><class-descriptor class="com.mps.safari.gestion.InventaireTable" 
>table="inventaire">
>      <field-descriptor id="1" name="id" column="INVENTAIRE_ID" 
> jdbc-type="BIGINT" primarykey="true" autoincrement="true"/>
>      ...
>      <field-descriptor id="3" name="typeVisiteDossier" 
> column="TYPE_VISITE_DOSSIER" jdbc-type="INTEGER"/>
>      <field-descriptor id="4" name="codeVisiteDossier" 
> column="CODE_VISITE_DOSSIER" jdbc-type="BIGINT"/>
>      ...
>    </class-descriptor>
>
>------------------------------------------
>
>Faites un voeu et puis Voila ! www.voila.fr
>
>
>
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>To unsubscribe, e-mail: ojb-user-unsubscribe@db.apache.org
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