Cascading LOV in a Query panel (af:query)

Question

Hi
I have a requirement to implement few Cascading LOV's in a Query panel. I have created the VO's for the LOV's with bind variable and view criteria and linked them. It works for the BC viewer. But to enable in the ADF UI, the partial trigger needs to be enabled on individual field. And the af:query encapsulates the fields and they are not exposed. Can someone help me with a solution or a pointer
Many thanks

Answer 1

Thanks for the pointer
Well I followed the the steps, and implemented the same for two LOV's. I'm getting "Server Exception during PPR, #1". Would be able to identify where I'm going wrong please.
FYI: I'm using a UI template that is stripped won from Oracles Dynamic tab template
1. parent LOV
<?xml version="1.0" encoding="windows-1252" ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">
<!---->
<ViewObject
xmlns="http://xmlns.oracle.com/bc4j"
Name="QcChiptypeVViewRO"
Version="11.1.1.56.60"
BindingStyle="OracleName"
CustomQuery="true"
RowClass="com.qualcomm.qdt.fwk.model.QdtViewRowImpl"
ComponentClass="com.qualcomm.qdt.fwk.model.QdtViewObjectImpl"
DefClass="com.qualcomm.qdt.fwk.model.QdtViewDefImpl"
PageIterMode="Full"
UseGlueCode="false">
<DesignTime>
<Attr Name="_codeGenFlag2" Value="Access|VarAccess"/>
<Attr Name="_isExpertMode" Value="true"/>
</DesignTime>
<SQLQuery>
<![CDATA[SELECT QcChiptypeV.CHIPTYPE
FROM QC_CHIPTYPE_V QcChiptypeV]]>
</SQLQuery>
<ViewAttribute
Name="Chiptype"
IsUpdateable="false"
IsPersistent="false"
PrecisionRule="true"
Precision="42"
Type="java.lang.String"
ColumnType="VARCHAR2"
AliasName="CHIPTYPE"
Expression="CHIPTYPE"
SQLType="VARCHAR">
<DesignTime>
<Attr Name="_DisplaySize" Value="42"/>
</DesignTime>
</ViewAttribute>
</ViewObject>
2. Child LOV
<?xml version="1.0" encoding="windows-1252" ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">
<!---->
<ViewObject
xmlns="http://xmlns.oracle.com/bc4j"
Name="QcMcnVViewRO"
Version="11.1.1.56.60"
BindingStyle="OracleName"
CustomQuery="true"
RowClass="com.qualcomm.qdt.fwk.model.QdtViewRowImpl"
ComponentClass="com.qualcomm.qdt.fwk.model.QdtViewObjectImpl"
DefClass="com.qualcomm.qdt.fwk.model.QdtViewDefImpl"
PageIterMode="Full"
UseGlueCode="false">
<DesignTime>
<Attr Name="_codeGenFlag2" Value="Access|VarAccess"/>
<Attr Name="_isExpertMode" Value="true"/>
</DesignTime>
<Variable
Name="chiptype"
Kind="viewcriteria"
Type="java.lang.String"/>
<ViewAccessor
Name="QcChiptypeVViewRO1"
ViewObjectName="com.qualcomm.qdt.model.lov.QcChiptypeVViewRO"
RowLevelBinds="true"/>
<SQLQuery>
<![CDATA[SELECT QcMcnV.MCN,
QcMcnV.CHIPTYPE
FROM QC_MCN_V QcMcnV]]>
</SQLQuery>
<ViewAttribute
Name="Mcn"
IsUpdateable="false"
IsPersistent="false"
PrecisionRule="true"
Precision="20"
Type="java.lang.String"
ColumnType="VARCHAR2"
AliasName="MCN"
Expression="MCN"
SQLType="VARCHAR">
<DesignTime>
<Attr Name="_DisplaySize" Value="20"/>
</DesignTime>
<Dependencies>
<Item
Value="Chiptype"/>
</Dependencies>
</ViewAttribute>
<ViewAttribute
Name="Chiptype"
IsUpdateable="false"
IsPersistent="false"
PrecisionRule="true"
Precision="42"
Type="java.lang.String"
ColumnType="VARCHAR2"
AliasName="CHIPTYPE"
Expression="CHIPTYPE"
SQLType="VARCHAR">
<DesignTime>
<Attr Name="_DisplaySize" Value="42"/>
</DesignTime>
</ViewAttribute>
<ViewCriteria
Name="QcMcnVViewROCriteriaChiptype"
ViewObjectName="com.qualcomm.qdt.model.lov.QcMcnVViewRO"
Conjunction="AND">
<Properties>
<CustomProperties>
<Property
Name="displayOperators"
Value="InAdvancedMode"/>
<Property
Name="autoExecute"
Value="true"/>
<Property
Name="allowConjunctionOverride"
Value="true"/>
<Property
Name="showInList"
Value="true"/>
<Property
Name="mode"
Value="Basic"/>
</CustomProperties>
</Properties>
<ViewCriteriaRow
Name="vcrow5"
UpperColumns="1">
<ViewCriteriaItem
Name="QcMcnVViewROCriteria_vcrow5_Chiptype"
ViewAttribute="Chiptype"
Operator="="
Conjunction="AND"
Value=":chiptype"
IsBindVarValue="true"
Required="Optional"/>
</ViewCriteriaRow>
</ViewCriteria>
</ViewObject>
3. JSF page
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
<af:document id="d1">
<af:messages id="m1"/>
<af:form id="f1">
<af:pageTemplate viewId="/oracle/ui/pattern/dynamicShell/dynamicTabShell.jspx"
value="#{bindings.pageTemplateBinding}" id="pt1">
<f:facet name="copyright">
<af:outputText value="2010 Qualcomm Inc. All Rights Reserved."
id="ot10"/>
</f:facet>
<f:facet name="about">
<af:navigationPane id="np3" hint="buttons">
<af:commandNavigationItem text="About" id="cni5"/>
<af:commandNavigationItem text="Privacy" id="cni6"/>
</af:navigationPane>
</f:facet>
<f:facet name="navigation">
<af:panelAccordion id="pa1">
<af:showDetailItem text=" Asset Details" id="sdi1">
<af:panelGroupLayout layout="vertical" id="pgl1">
<af:panelHeader text=" " id="ph1">
<af:query id="qryId1"
headerText="Search Criteria (Use % as wildcard)" disclosed="true"
value="#{bindings.ImplicitViewCriteriaQuery.queryDescriptor}"
model="#{bindings.ImplicitViewCriteriaQuery.queryModel}"
queryListener="#{bindings.ImplicitViewCriteriaQuery.processQuery}"
queryOperationListener="#{bindings.ImplicitViewCriteriaQuery.processQueryOperation}"
saveQueryMode="hidden"/>
</af:panelHeader>
</af:panelGroupLayout>
</af:showDetailItem>
<af:showDetailItem text="More Info" id="sdi2"/>
</af:panelAccordion>
</f:facet>
<f:facet name="globalLinks">
<af:navigationPane id="np2" hint="buttons"
inlineStyle="text-align:right;">
<af:commandNavigationItem text="Help" id="cni4" action="noop"/>
<af:commandNavigationItem text="Sign out"
id="commandNavigationItem1"
action="noop"/>
</af:navigationPane>
</f:facet>
<f:facet name="status"/>
<f:facet name="globalToolbar"/>
<f:facet name="globalSearch"/>
<f:facet name="globalTabs">
<af:navigationPane id="np1">
<af:commandNavigationItem text="Device Query/Update" id="cni1"
selected="true" partialSubmit="false"/>
<af:commandNavigationItem text="Asset Return" id="cni3"
action="dummy" rendered="false"/>
</af:navigationPane>
</f:facet>
<f:facet name="welcome">
<af:panelSplitter id="ps1" orientation="vertical">
<f:facet name="first">
<af:panelCollection id="pc1" defaultToolbarItemDisplay="icon">
<f:facet name="menus">
<af:menu text="Options" id="m2" rendered="false">
<af:commandMenuItem text="Printable Page" id="cmi2">
<af:showPrintablePageBehavior/>
</af:commandMenuItem>
<af:commandMenuItem text="Download" id="commandMenuItem1">
<af:exportCollectionActionListener exportedId="t2"
type="excelHTML"
title="Asset Details"/>
</af:commandMenuItem>
</af:menu>
</f:facet>
<f:facet name="toolbar">
<af:toolbar id="t1">
<af:commandToolbarButton id="ctb1"
hoverIcon="/images/view_image.gif"
text="Export to Excel">
<af:exportCollectionActionListener exportedId="t2"
type="excelHTML"
title="Asset Details"/>
</af:commandToolbarButton>
</af:toolbar>
</f:facet>
<f:facet name="statusbar"/>
<af:table value="#{bindings.QcDeviceTrackingVO1.collectionModel}"
var="row"
rows="#{bindings.QcDeviceTrackingVO1.rangeSize}"
emptyText="#{bindings.QcDeviceTrackingVO1.viewable ? 'No data to display.' : 'Access Denied.'}"
fetchSize="#{bindings.QcDeviceTrackingVO1.rangeSize}"
rowBandingInterval="0"
filterModel="#{bindings.ImplicitViewCriteriaQuery.queryDescriptor}"
queryListener="#{bindings.ImplicitViewCriteriaQuery.processQuery}"
filterVisible="true" varStatus="vs"
selectedRowKeys="#{bindings.QcDeviceTrackingVO1.collectionModel.selectedRow}"
selectionListener="#{bindings.QcDeviceTrackingVO1.collectionModel.makeCurrent}"
rowSelection="single" id="t2"
columnSelection="single"
partialTriggers=":::ph1 :::qryId1">
<af:column sortProperty="Serialnum" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Serialnum.label}"
id="c28" width="103">
<af:outputText value="#{row.Serialnum}" id="ot17"/>
</af:column>
<af:column sortProperty="Assettag" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Assettag.label}"
id="c7" width="107">
<af:outputText value="#{row.Assettag}" id="ot24"/>
</af:column>
<af:column sortProperty="Chiptype" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Chiptype.label}"
id="c18" width="26">
<af:outputText value="#{row.Chiptype}" id="ot27"/>
</af:column>
<af:column sortProperty="Mcn" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Mcn.label}"
id="c11">
<af:outputText value="#{row.Mcn}" id="ot13"/>
</af:column>
<af:column sortProperty="Mcnrev" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Mcnrev.label}"
id="c8">
<af:outputText value="#{row.Mcnrev}" id="ot3"/>
</af:column>
<af:column sortProperty="Assignedto" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Assignedto.label}"
id="c15">
<af:outputText value="#{row.Assignedto}" id="ot32"/>
</af:column>
<af:column sortProperty="Location" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Location.label}"
id="c24">
<af:outputText value="#{row.Location}" id="ot19"/>
</af:column>
<af:column sortProperty="Locationfullname" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Locationfullname.label}"
id="c14">
<af:outputText value="#{row.Locationfullname}" id="ot26"/>
</af:column>
<af:column sortProperty="Locationtype" filterable="true"
sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Locationtype.label}"
id="c13">
<af:outputText value="#{row.Locationtype}" id="ot28"/>
</af:column>
<af:column sortProperty="Description" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Description.label}"
id="c21">
<af:outputText value="#{row.Description}" id="ot22"/>
</af:column>
<af:column sortProperty="Assignment" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Assignment.label}"
id="c30">
<af:outputText value="#{row.Assignment}" id="ot34">
<af:convertNumber groupingUsed="false"
pattern="#{bindings.QcDeviceTrackingVO1.hints.Assignment.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Createddate" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Createddate.label}"
id="c1">
<af:outputText value="#{row.Createddate}" id="ot15">
<af:convertDateTime pattern="#{bindings.QcDeviceTrackingVO1.hints.Createddate.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Lastid" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Lastid.label}"
id="c33">
<af:outputText value="#{row.Lastid}" id="ot9">
<af:convertNumber groupingUsed="false"
pattern="#{bindings.QcDeviceTrackingVO1.hints.Lastid.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Lportfolioitemid" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Lportfolioitemid.label}"
id="c23">
<af:outputText value="#{row.Lportfolioitemid}" id="ot23">
<af:convertNumber groupingUsed="false"
pattern="#{bindings.QcDeviceTrackingVO1.hints.Lportfolioitemid.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Lkeycontactid" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Lkeycontactid.label}"
id="c4">
<af:outputText value="#{row.Lkeycontactid}" id="ot11">
<af:convertNumber groupingUsed="false"
pattern="#{bindings.QcDeviceTrackingVO1.hints.Lkeycontactid.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Fullname" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Fullname.label}"
id="c22">
<af:outputText value="#{row.Fullname}" id="ot6"/>
</af:column>
<af:column sortProperty="Status" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Status.label}"
id="c16">
<af:outputText value="#{row.Status}" id="ot21"/>
</af:column>
<af:column sortProperty="Qcemployeenumber" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Qcemployeenumber.label}"
id="c6">
<af:outputText value="#{row.Qcemployeenumber}" id="ot33">
<af:convertNumber groupingUsed="false"
pattern="#{bindings.QcDeviceTrackingVO1.hints.Qcemployeenumber.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Field3" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Field3.label}"
id="c12">
<af:outputText value="#{row.Field3}" id="ot18"/>
</af:column>
<af:column sortProperty="Empdeptfullname" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Empdeptfullname.label}"
id="c27">
<af:outputText value="#{row.Empdeptfullname}" id="ot4"/>
</af:column>
<af:column sortProperty="Comments" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Comments.label}"
id="c10">
<af:outputText value="#{row.Comments}" id="ot16"/>
</af:column>
<af:column sortProperty="Builtby" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Builtby.label}"
id="c19">
<af:outputText value="#{row.Builtby}" id="ot20"/>
</af:column>
<af:column sortProperty="Mesbuild" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Mesbuild.label}"
id="c31">
<af:outputText value="#{row.Mesbuild}" id="ot2"/>
</af:column>
<af:column sortProperty="Esn" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Esn.label}"
id="c26">
<af:outputText value="#{row.Esn}" id="ot31"/>
</af:column>
<af:column sortProperty="Imei" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Imei.label}"
id="c17">
<af:outputText value="#{row.Imei}" id="ot29"/>
</af:column>
<af:column sortProperty="Macaddress" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Macaddress.label}"
id="c32">
<af:outputText value="#{row.Macaddress}" id="ot1"/>
</af:column>
<af:column sortProperty="Brf" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Brf.label}"
id="c25">
<af:outputText value="#{row.Brf}" id="ot8"/>
</af:column>
<af:column sortProperty="Brfrev" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Brfrev.label}"
id="c3">
<af:outputText value="#{row.Brfrev}" id="ot25"/>
</af:column>
<af:column sortProperty="Dacquisition" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Dacquisition.label}"
id="c29">
<af:outputText value="#{row.Dacquisition}" id="ot7">
<af:convertDateTime pattern="#{bindings.QcDeviceTrackingVO1.hints.Dacquisition.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Datqcmainttermdate" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Datqcmainttermdate.label}"
id="c2">
<af:outputText value="#{row.Datqcmainttermdate}"
id="ot30">
<af:convertDateTime pattern="#{bindings.QcDeviceTrackingVO1.hints.Datqcmainttermdate.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Datqcissueddate" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Datqcissueddate.label}"
id="c5">
<af:outputText value="#{row.Datqcissueddate}" id="ot5">
<af:convertDateTime pattern="#{bindings.QcDeviceTrackingVO1.hints.Datqcissueddate.format}"/>
</af:outputText>
</af:column>
<af:column sortProperty="Itlqciteclass" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.Itlqciteclass.label}"
id="c20">
<af:outputText value="#{row.Itlqciteclass}" id="ot14"/>
</af:column>
<af:column sortProperty="RowID" sortable="true"
headerText="#{bindings.QcDeviceTrackingVO1.hints.RowID.label}"
id="c9">
<af:outputText value="#{row.RowID}" id="ot12"/>
</af:column>
</af:table>
</af:panelCollection>
</f:facet>
<f:facet name="second">
<af:panelTabbed id="pt2">
<af:showDetailItem text="Update Attributes" id="sdi3"
stretchChildren="first"/>
</af:panelTabbed>
</f:facet>
</af:panelSplitter>
</f:facet>
<f:facet name="innerToolbar"/>
<f:attribute name="brandingTitle" value="ITE Device Tracking System"/>
<f:attribute name="navSplitterPosition" value="450"/>
</af:pageTemplate>
</af:form>
</af:document>
</f:view>
</jsp:root>