How to customize SORT event in the View Form ?

Question

I'm using Jdevelper 9.0.3 with BC4J+UIXML, and I need customize the View Object Query, including "bind variables" as:
SELECT A.COD_CLIENTE,
A.NUM_TESTE,
A.NOM_TESTE
FROM TESTE A
WHERE A.COD_CLIENTE = :1
I create the java class for prepare assign values to View Object as:
//Nome da Package da Tela Detail
package br.com.siadem.siaed.ed00010;
// Importa as Bibliotecas necessárias
import oracle.jbo.ViewObject;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.Page;
import oracle.cabo.servlet.event.PageEvent;
import oracle.cabo.servlet.event.EventResult;
import oracle.cabo.data.jbo.servlet.bind.*;
import oracle.cabo.ui.data.BoundValue;
import oracle.cabo.ui.data.DataBoundValue;
import br.com.siadem.siaed.util.*;
public class FunPreQuery
public static EventResult FunConfiguraQuery(BajaContext context, Page page, PageEvent event) throws Throwable
TrataDadosSessao varDadosSessao = new TrataDadosSessao();
// Configura os Parametros
String valor1 = varDadosSessao.getCodCliente();
// Cria o objeto ViewObject para a difinição dos parametro na Query
ViewObject view = ServletBindingUtils.getViewObject(context);
// Configura os parametros na query do ViewObject
view.setWhereClauseParam(0,valor1);
// Executa a Query
view.executeQuery();
// Retorna o Resultado para a Página
return new EventResult(page);
This works very well customizing the "Search" event in the View form as:
<event name="search" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="TesteView1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="TesteView1" >
<!-- search for the view criteria -->
<bc4j:findByExample>
<bc4j:exampleRow ignoreCase="true" >
<bc4j:exampleAttribute>
<bc4j:nameBinding><bc4j:parameter name="attrName" /></bc4j:nameBinding>
<bc4j:valueBinding><bc4j:parameter name="attrValue" /></bc4j:valueBinding>
</bc4j:exampleAttribute>
</bc4j:exampleRow>
</bc4j:findByExample>
<method class="br.com.siadem.siaed.ed00010.FunPreQuery"
method="FunConfiguraQuery"/>
<!--<bc4j:executeQuery/>-->
<!-- store the current search criteria as page properties -->
<bc4j:setPageProperty name="attrName" >
<bc4j:parameter name="attrName" />
</bc4j:setPageProperty>
<bc4j:setPageProperty name="attrValue" >
<bc4j:parameter name="attrValue" />
</bc4j:setPageProperty>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
I'm use the sortable columns with <bc4j:sortablecolumn> as:
<bc4j:column attrName="NomTeste">
<columnHeader>
<bc4j:sortableHeader/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
But, the "Sort" event does not enable a manual control for call Java Class. When user click in any sortable column, occur the follow error:
oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation. Statement: SELECT A.COD_CLIENTE, A.NUM_TESTE, A.NOM_TESTE FROM TESTE A WHERE a.cod_cliente = :1 ORDER BY A.NUM_TESTE ASC
Anybody know to implement this functionality ?

Answer 1

Ok, the solution:
Sort BC4J table with reduced view objects