Set where Clause parameter using UIX

Question

I am using uiXML to generate a table which is associated to a ViewObject. The query of the ViewObject has bind variable for date. I would like to display a report (i.e table) with the values from ViewObject corresponding to dates (from & to) set using the bind variable. In other words, I would like to set the value for the bind variable from UIX just before displaying the table. My code is as follows:
<bc4j:rootAppModuleScope name="QnAMainRepView1AppModule">
<contents>
<form name="QnAFrm">
<contents>
<bc4j:viewObjectScope name="QnAMainRepView1">
<contents>
<bc4j:table name="QnATbl" width="100%">
<bc4j:keyStamp>
<bc4j:rowKey name="key"/>
</bc4j:keyStamp>
<contents>
<bc4j:column attrName="HostName">
<columnHeader>
<bc4j:sortableHeader text="Host"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="ModuleName">
<columnHeader>
<bc4j:sortableHeader text="Module"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="Description">
<columnHeader>
<bc4j:sortableHeader/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="Count1">
<columnHeader>
<bc4j:sortableHeader text="Count"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="Gmt">
<columnHeader>
<bc4j:sortableHeader text="GMT"/>
</columnHeader>
<contents>
<bc4j:dateField readOnly="true">
<onSubmitValidater>
<date dateStyle="long"
pattern="MM-dd-yyyy 'at' hh:mm:ss"/>
</onSubmitValidater>
</bc4j:dateField>
</contents>
</bc4j:column>
<column>
<columnHeader>
<sortableHeader text="Local Time"/>
</columnHeader>
<contents>
<dateField readOnly="true" value="2003-01-25">
<onSubmitValidater>
<date dateStyle="long"
pattern="MM-dd-yyyy 'at' hh:mm:ss"/>
</onSubmitValidater>
</dateField>
</contents>
</column>
</contents>
</bc4j:table>
</contents>
</bc4j:viewObjectScope>
</contents>
</form>
</contents>
</bc4j:rootAppModuleScope>
In the above, QnAMainRepView1 is the ViewObject which has bind variables. How do I set the value for the bind variable before the table is drawn?
Thank you very much for your help.
Jayasree

Answer 1

I'm try implement this feature, but my Page return the follow error:
oracle.jbo.SQLStmtException: JBO-27122: Error during preparation for instruction. Instruction: SELECT A.COD_CLIENTE, A.SEQ_ESCOLA, A.SEQ_CAMPUS, (select b.nom_escola from ed_escola b where a.cod_cliente = b.cod_cliente and a.seq_escola = b.seq_escola) AS DspNomEscola, A.STA_PRINCIPAL, A.COD_PESSOA, A.NOM_CAMPUS, A.STA_CNPJ, A.NUM_CNPJ, A.STA_FUNCIONAMENTO, A.TIP_DEPENDENCIA, A.TIP_ZONA, A.COD_GEOPROCESSAMENTO, A.QTD_M2_CONSTRUIDA, A.QTD_M2_TOTAL, A.NUM_DEPENDENCIA_OUES, A.NUM_CADASTRO_IMOB, A.COD_PESSOA_PRO, A.TIP_ESGOTO_SANITARIO, A.TIP_OCUPACAO_IMOVEL, A.TIP_ESFERA_PESSOA_PRO, A.SEQ_ESCOLA_DEP, A.SEQ_TIPO_LOCAL_CAMPUS, A.COD_CLASSE_LOCAL_CAMPUS, A.SEQ_TIPO_DESTINO_LIXO, A.COD_CLASSE_DESTINO_LIXO FROM ED_ESCOLA_CAMPUS A WHERE cod_cliente = ?
at oracle.jbo.server.QueryCollection.executeQuery(QueryCollection.java:608)
at oracle.jbo.server.ViewObjectImpl.executeQueryForCollection(ViewObjectImpl.java:2600)
at oracle.jbo.server.ViewRowSetImpl.execute(ViewRowSetImpl.java:521)
at oracle.jbo.server.ViewRowSetIteratorImpl.ensureRefreshed(ViewRowSetIteratorImpl.java:2197)
at oracle.jbo.server.ViewRowSetIteratorImpl.first(ViewRowSetIteratorImpl.java:1141)
at oracle.jbo.server.ViewRowSetImpl.first(ViewRowSetImpl.java:2240)
at oracle.jbo.server.ViewObjectImpl.first(ViewObjectImpl.java:4345)
at oracle.cabo.data.jbo.ui.data.RowSetDataProvider.init(Unknown Source)
at oracle.cabo.ui.data.provider.TableDataProvider.init(Unknown Source)
at oracle.cabo.ui.data.provider.CachingDataProvider.init(Unknown Source)
at oracle.cabo.ui.data.provider.DataProviderStack.addDataProvider(Unknown Source)
at oracle.cabo.ui.LogicalNodeRenderingContext.addDataProvider(Unknown Source)
at oracle.cabo.ui.composite.CompositeRenderingContext.addDataProvider(Unknown Source)
at oracle.cabo.ui.laf.base.DataScopeRenderer.prerender(Unknown Source)
at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
at oracle.cabo.ui.BaseUINode.render(Unknown Source)
at oracle.cabo.ui.BaseUINode.render(Unknown Source)
at oracle.cabo.ui.composite.UINodeRenderer.renderWithNode(Unknown Source)
at oracle.cabo.ui.composite.UINodeRenderer.render(Unknown Source)
My ViewObject have the SQL Statment:
select a.cod_cliente,
a.seq_escola,
a.seq_campus,
from ed_escola_campus a
where cod_cliente = ?
package br.com.siadem.siaed.ed00010;
import javax.servlet.ServletConfig;
import oracle.jbo.ViewObject;
import oracle.cabo.ui.RenderingContext;
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.servlet.ui.BajaRenderingContext;
import oracle.cabo.data.jbo.servlet.bind.ServletBindingUtils;
My Event Handler:
public class FunPreQuery
public EventResult handleEvent(BajaContext context, Page page, PageEvent event) throws Throwable
ViewObject view = ServletBindingUtils.getViewObject(context);
view.setWhereClauseParam(0, "1");
view.executeQuery();
return new EventResult(page);
My Page UIX:
<?xml version="1.0" encoding="windows-1252" ?>
<page xmlns="http://xmlns.oracle.com/uix/controller"
xmlns:ctrl="http://xmlns.oracle.com/uix/controller"
xmlns:ui="http://xmlns.oracle.com/uix/ui"
xmlns:bc4j="http://xmlns.oracle.com/uix/bc4j" >
<bc4j:registryDef>
<bc4j:rootAppModuleDef name="EdEscolaCampusView1AppModule"
definition="siaed.Ed00010Module"
releaseMode="stateful" >
<bc4j:viewObjectDef name="EdEscolaCampusView1"
rangeSize="10" >
<bc4j:rowDef name="UpdateEdEscolaCampusView1" autoCreate="false" >
<bc4j:propertyKey name="key" />
</bc4j:rowDef>
</bc4j:viewObjectDef>
</bc4j:rootAppModuleDef>
</bc4j:registryDef>
<content>
<try xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui" >
<catch>
<displayException />
</catch>
<contents>
<!--
<switcher childName="default">
<boundAttribute name="childName">
<if>
<comparison type="equals">
<dataObject select="key" source="ctrl:page"/>
<dataObject source="ui:null"/>
</comparison>
<fixed text="error"/>
</if>
</boundAttribute>
<case name="error">
<header text="Required page property 'key' missing. Cannot display page."/>
</case>
<case name="default">
-->
<pageLayout xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui"
title="Campus - Pesquisar" >
<contents>
<!-- this will contain any validation errors after form
submission -->
<messageBox automatic="true" />
<bc4j:rootAppModuleScope name="EdEscolaCampusView1AppModule" >
<contents>
<header text="Pesquisar" >
<contents>
<form name="search" method="POST" >
<contents>
<inlineMessage prompt="Condição" vAlign="middle" >
<contents>
<flowLayout>
<contents>
<choice name="attrName"
data:selectedValue="attrName@ctrl:page"
shortDesc="Search Column">
<contents>
<option text="Escola" value="SeqEscola" />
<option text="Código Campus" value="SeqCampus" />
<option text="Nome" value="NomCampus" />
</contents>
</choice>
<textInput name="attrValue" columns="20"
data:text="attrValue@ctrl:page"
shortDesc="Search"/>
</contents>
</flowLayout>
</contents>
<end>
<submitButton text="Pesquisar" ctrl:event="search" />
</end>
</inlineMessage>
</contents>
</form>
</contents>
</header>
<header text="Resultados" >
<contents>
<form name="viewForm" method="POST" >
<contents>
<tableLayout>
<contents>
<bc4j:viewObjectScope name="EdEscolaCampusView1" >
<contents>
<bc4j:table name="viewTable" width="80%"
alternateText="Nenhum registro encontrado">
<tableSelection>
<!-- single selection for each row in the table -->
<singleSelection selectedIndex="0" shortDesc="Select Row">
<contents>
<!-- the update button causes the currently selected
row to be sent to the update page -->
<submitButton text="alterar"
ctrl:event="update" />
<!-- the delete button causes the currently selected
row to be removed -->
<submitButton text="excluir"
ctrl:event="delete" />
</contents>
</singleSelection>
</tableSelection>
<!-- the key identifying the current row in the table -->
<bc4j:keyStamp>
<bc4j:rowKey name="key" />
</bc4j:keyStamp>
<contents>
<!-- A bc4j:column element is added for each attribute
in the ViewObject. -->
<bc4j:column attrName="SeqEscola">
<columnHeader>
<bc4j:sortableHeader text="Escola"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="SeqCampus">
<columnHeader>
<bc4j:sortableHeader text="Campus"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
</contents>
</bc4j:table>
</contents>
</bc4j:viewObjectScope>
</contents>
</tableLayout>
</contents>
</form>
</contents>
</header>
</contents>
</bc4j:rootAppModuleScope>
</contents>
<contentFooter>
<!-- the create button redirects to the create page -->
<button text="Inserir" ctrl:event="inserir" />
</contentFooter>
</pageLayout>
</contents>
</try>
</content>
<handlers>
<event name="*">
<method name="br.com.siadem.siaed.ed00010.FunPreQuery"
method="handleEvent"/>
</event>
<event name="search" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="EdEscolaCampusView1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="EdEscolaCampusView1" >
<!-- 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>
<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>
<event name="sort" source="viewTable" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="EdEscolaCampusView1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="EdEscolaCampusView1" >
<!-- sort by the submitted attribute name -->
<bc4j:sort/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="goto" source="viewTable" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="EdEscolaCampusView1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="EdEscolaCampusView1" >
<!-- navigate to the submitted range -->
<bc4j:goto/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="create" >
<!-- forward to the create page -->
<ctrl:go name="ed00010create" redirect="true" />
</event>
<event name="update" >
<!-- forward to the update page, passing the selected key
as a page property -->
<ctrl:go name="ed00010update" redirect="true" >
<ctrl:property name="key" >
<ctrl:selection name="viewTable" key="key" />
</ctrl:property>
</ctrl:go>
</event>
<event name="delete" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="EdEscolaCampusView1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="EdEscolaCampusView1" >
<!-- find the selected Row -->
<bc4j:findRowByKey>
<bc4j:keyBinding>
<bc4j:selectionKey name="viewTable" key="key" />
</bc4j:keyBinding>
<bc4j:handlers>
<!-- remove the selected ViewObject row -->
<bc4j:removeRow />
<!-- execute the query to eliminate dead row access -->
<bc4j:executeQuery/>
</bc4j:handlers>
</bc4j:findRowByKey>
</bc4j:findViewObject>
<!-- commit the transaction, forwards to self automatically -->
<bc4j:commit/>
</bc4j:findRootAppModule>
</event>
</handlers>
</page>
Any body have a any idea for solution this problem ???
thanks,
Danilo