Detail-Disclosure problem with Master- Detail VO

Question

Hi,
I have UIX pages based on Master - Detail VO, detail data being shown when you press Detail button on the left, detail data display in the BC4J Table correctly, but I am able to update only the last record of the rowset. when I click on the first master detail and press update button i get Null Pointer Exeception error and other problem is that my detail data has sorted headers, when i click on the sorted column header, it close the Detail portion on the Table.
Here is UIX page listing, please any one review the code and let me what is wrong
Thanks
View Page
<?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"
xmlns:html="http://www.w3.org/TR/REC-html40"
xmlns:viewpage="http://www.example.org/siriusbilling/templates">
<ctrl:head xmlns="http://www.w3.org/TR/REC-html40">
<title>View Properties</title>
</ctrl:head>
<templates xmlns="http://xmlns.oracle.com/uix/ui">
<templateImport source="templates/SiriusBilling.uit"/>
</templates>
<bc4j:registryDef>
<bc4j:rootAppModuleDef name="PropertiesForeignKeyLink1AppModule"
definition="siriusbilling.SiriusBCModule"
releaseMode="stateful" >
<bc4j:viewObjectDef name="PropertyTypesMasterView"
rangeSize="2" />
<bc4j:viewObjectDef name="PropertiesDetailView"
rangeSize="5" />
</bc4j:rootAppModuleDef>
</bc4j:registryDef>
<ctrl:content xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui">
<viewpage:siriusPageLayout>
<pageHeader>
<globalHeader selectedIndex="0">
<contents>
<link text="View Properties" />
</contents>
</globalHeader >
</pageHeader>
<contents>
<try xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui" >
<catch>
<displayException />
</catch>
<contents>
<!-- this will contain any validation errors after form
submission -->
<messageBox automatic="true" />
<bc4j:rootAppModuleScope name="PropertiesForeignKeyLink1AppModule" >
<contents>
<header text="Properties Search" >
<contents>
<form name="search" method="POST" >
<contents>
<inlineMessage prompt="Search by:" vAlign="middle" >
<contents>
<bc4j:viewObjectScope name="PropertiesDetailView" >
<contents>
<flowLayout>
<contents>
<choice name="attrName"
data:selectedValue="attrName@ctrl:page"
shortDesc="Search Column">
<contents>
<option text="Property Id" value="PropertyId" />
<option text="Property Name" value="PropertyName" />
<option text="Property Description" value="PropertyDescription" />
<option text="Unit Of Measure" value="UnitOfMeasure" />
</contents>
</choice>
<textInput prompt="Criteria" name="attrValue" columns="20"
data:text="attrValue@ctrl:page"
shortDesc="Search Criteria for Propeties"/>
</contents>
</flowLayout>
</contents>
</bc4j:viewObjectScope>
</contents>
<end>
<submitButton text="Go" ctrl:event="search" />
</end>
</inlineMessage>
</contents>
</form>
</contents>
</header>
<spacer width="10"/>
<separator />
<header text="Property Types" >
<contents>
<form name="viewForm" method="POST" >
<contents>
<bc4j:viewObjectScope name="PropertyTypesMasterView" >
<contents>
<bc4j:table name="viewPropertyTypeTable" automatic="false"
width="100%" alternateText="No rows found"
formSubmitted="true"
partialRenderMode="self"
data:detailDisclosure="tableDetails@ctrl:eventResult">
<!-- the key identifying the current row in the table -->
<bc4j:keyStamp>
<bc4j:rowKey name="key" />
</bc4j:keyStamp>
<contents>
<!-- placing the region in automatic mode will cause the key
named child to be rendered, followed by each attribute
in the ViewObject using the attrStamp named child. -->
<!-- A bc4j:column element is added for each attribute
in the ViewObject. -->
<bc4j:column attrName="PropertyType">
<columnHeader>
<bc4j:sortableHeader text="Property Type"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="TableName">
<columnHeader>
<bc4j:sortableHeader text="Table Name"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="Comments" >
<columnHeader>
Comments
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
</contents>
<detail>
<flowLayout>
<contents>
<header text="Properties Detail">
<contents>
<spacer width="10"/>
<bc4j:viewObjectScope name="PropertiesDetailView" >
<contents>
<!-- placing the table in automatic mode will cause the table
to contain the keyStamp named child followed by the
columnStamp named child for each attribute in the
ViewObject. -->
<bc4j:table name="viewTable" automatic="false"
width="100%" alternateText="No rows found"
formSubmitted="true"
partialRenderMode="self">
<tableSelection>
<!-- single selection for each row in the table -->
<singleSelection selectedIndex="0" text="Select Row and ...">
<contents>
<submitButton text="Create" ctrl:event="create" />
<!-- the update button causes the currently selected
row to be sent to the update page -->
<submitButton text="Update"
ctrl:event="update" />
<!-- the delete button causes the currently selected
row to be removed -->
<submitButton text="Delete"
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="PropertyId">
<columnHeader>
<bc4j:sortableHeader text="Property Id"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="PropertyName">
<columnHeader>
<bc4j:sortableHeader text="Property Name"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="PropertyDescription">
<columnHeader>
<bc4j:sortableHeader text="Property Description"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
<bc4j:column attrName="UnitOfMeasure">
<columnHeader>
<bc4j:sortableHeader text="Unit of Measure"/>
</columnHeader>
<contents>
<bc4j:input readOnly="true"/>
</contents>
</bc4j:column>
</contents>
</bc4j:table>
</contents>
</bc4j:viewObjectScope>
<formValue name="disclosed" value="true" />
</contents>
</header>
</contents>
</flowLayout>
</detail>
</bc4j:table>
</contents>
</bc4j:viewObjectScope>
</contents>
</form>
</contents>
</header>
</contents>
</bc4j:rootAppModuleScope>
</contents>
</try>
</contents>
</viewpage:siriusPageLayout>
</ctrl:content>
<handlers>
<event name="search" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertiesDetailView" >
<!-- 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="first" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertyTypesMasterView" >
<!-- navigate to the first department -->
<bc4j:first/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="previous" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertyTypesMasterView" >
<!-- navigate to the previous department -->
<bc4j:previous/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="next" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertyTypesMasterView" >
<!-- navigate to the next department -->
<bc4j:next/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="last" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertyTypesMasterView" >
<!-- navigate to the last department -->
<bc4j:last/>
</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="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertiesDetailView" >
<!-- sort by the submitted attribute name -->
<bc4j:sort/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="sort" source="viewPropertyTypeTable" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertyTypesMasterView" >
<!-- sort by the submitted attribute name -->
<bc4j:sort/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="goto" source="viewPropertyTypeTable" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertyTypesMasterView" >
<!-- navigate to the submitted range -->
<bc4j:goto/>
</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="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertiesDetailView" >
<!-- navigate to the submitted range -->
<bc4j:goto/>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
<event name="create" >
<!-- forward to the create page -->
<ctrl:go name="InsertProperties" redirect="true" />
</event>
<event name="update" >
<!-- forward to the update page, passing the selected key
as a page property -->
<ctrl:go name="UpdateProperties" 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="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertiesDetailView" >
<!-- 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>
<event name="show">
<method class="servlet.showDetails" method="doHideShowEvent" />
</event>
<event name="hide">
<method class="servlet.showDetails" method="doHideShowEvent" />
</event>
</handlers>
</page>
Update View
<?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"
xmlns:html="http://www.w3.org/TR/REC-html40"
xmlns:updatepage="http://www.example.org/siriusbilling/templates">
<ctrl:head xmlns="http://www.w3.org/TR/REC-html40">
<title>Update Properties</title>
</ctrl:head>
<templates xmlns="http://xmlns.oracle.com/uix/ui">
<templateImport source="templates/SiriusBilling.uit"/>
</templates>
<bc4j:registryDef>
<bc4j:rootAppModuleDef name="PropertiesForeignKeyLink1AppModule"
definition="siriusbilling.SiriusBCModule"
releaseMode="stateful" >
<bc4j:viewObjectDef name="PropertiesDetailView" >
<bc4j:rowDef name="UpdatePropertiesDetailView" autoCreate="false" usesCurrency="true">
<bc4j:propertyKey name="key" />
</bc4j:rowDef>
</bc4j:viewObjectDef>
<!-- Display only 20 rows -->
<bc4j:viewObjectDef name="PropertyTypesView" rangeSize="20" >
<bc4j:rowDef name="UpdatePropertyTypesView" autoCreate="false">
<bc4j:propertyKey name="key" />
</bc4j:rowDef>
</bc4j:viewObjectDef>
</bc4j:rootAppModuleDef>
</bc4j:registryDef>
<ctrl:content xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui">
<updatepage:siriusPageLayout>
<pageHeader>
<globalHeader selectedIndex="0">
<contents>
<link text="Update Property" />
</contents>
</globalHeader >
</pageHeader>
<contents>
<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 'Property Type' missing. Cannot display page."/>
</case>
<case name="default">
<flowLayout>
<contents>
<!-- this will contain any validation errors after form
submission -->
<messageBox automatic="true" />
<script>
<contents>
function UOMLovCallBack(lovwin, event)
var value = lovwin.returnUOMValue;
if (value!=(void 0))
document.updateForm.UnitOfMeasure.value = lovwin.returnUOMValue;
</contents>
</script>
<form name="updateForm" method="POST" >
<contents>
<!-- we cannot implicitly determine that events
will be triggered because submit buttons are
outside the form scope, so add the placeholder
explicitly -->
<formParameter name="event" />
<!-- layout the fields in two columns -->
<spacer width="10"/>
<tableLayout width="80%"
cellPadding="2"
hAlign="center">
<contents>
<bc4j:rootAppModuleScope name="PropertiesForeignKeyLink1AppModule" >
<contents>
<bc4j:viewObjectScope name="PropertiesDetailView" >
<contents>
<bc4j:rowScope name="UpdatePropertiesDetailView" >
<contents>
<bc4j:messageChoice prompt="Property Type" attrName="PropertyType" name="PropertyType">
<contents>
<bc4j:optionList voName="PropertyTypesView" attrName="PropertyType" textAttributeName="PropertyType" size="30"/>
</contents>
</bc4j:messageChoice>
<bc4j:messageInput prompt="Property Id" vAlign="left" attrName="PropertyId" size="30"/>
<bc4j:messageInput prompt="Property Name" attrName="PropertyName" size="30"/>
<bc4j:messageInput prompt="Property Description" attrName="PropertyDescription" size="30" />
<bc4j:messageLovField prompt="Unit Of Measure"
attrName="UnitOfMeasure"
name="UnitOfMeasure"
onClick="openWindow(window,
'UOMLov.uix',
'lovwin',
{width:480, height:300},
true,
'dialog',
UOMLovCallBack);
return false;" />
</contents>
</bc4j:rowScope>
</contents>
</bc4j:viewObjectScope>
</contents>
</bc4j:rootAppModuleScope>
</contents>
</tableLayout>
</contents>
</form>
</contents>
<contents>
<contentFooter>
<contents>
<html:center>
<!-- place a row of buttons below the content -->
<pageButtonBar>
<contents>
<!-- the cancel button performs a transaction rollback -->
<button text="Cancel" ctrl:event="cancel" />
<!-- the update button submits the user-entered
form data -->
<submitButton text="Update" formName="updateForm"
ctrl:event="apply" />
</contents>
</pageButtonBar>
</html:center>
</contents>
</contentFooter>
</contents>
</flowLayout>
</case>
</switcher>
</contents>
</try>
</contents>
</updatepage:siriusPageLayout>
</ctrl:content>
<handlers>
<event name="cancel" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- rollback the current transaction -->
<bc4j:rollback/>
<!-- forward to the summary page -->
<ctrl:go name="ViewProperties" redirect="true" />
</bc4j:findRootAppModule>
</event>
<event name="apply" >
<!-- using the ApplicationModule causes it to be checked out from the
ApplicationPool. It is released using stateful mode. -->
<bc4j:findRootAppModule name="PropertiesForeignKeyLink1AppModule" >
<!-- establish the ViewObject scope -->
<bc4j:findViewObject name="PropertiesDetailView" >
<!-- find the row by key, falling back on a new default
row if the key is not found -->
<bc4j:findRow name="UpdatePropertiesDetailView" >
<!-- set each attribute explicitly -->
<bc4j:setAttribute name="PropertyId" />
<bc4j:setAttribute name="PropertyType" />
<bc4j:setAttribute name="PropertyName" />
<bc4j:setAttribute name="PropertyDescription" />
<bc4j:setAttribute name="UnitOfMeasure" />
<!-- commit the transaction -->
<bc4j:commit/>
<bc4j:executeQuery/>
<!-- forward to the summary page -->
<ctrl:go name="ViewProperties" redirect="true" />
</bc4j:findRow>
</bc4j:findViewObject>
</bc4j:findRootAppModule>
</event>
</handlers>
</page>

Answer 1

I think the detailDisclosure state needs to be saved and retrieved from the session.
I'm not sure using a table with singleSelection inside a detail disclosure is supported. Are you doing master-detail inside of detail disclosure? Detail disclosure is not really meant for that. In jdev 10g preview we make hooking up a master-detail easy. Here's a link to some doc about it.
http://otn.oracle.com/products/jdev/collateral/tutorials/9050/adfuix_tut.html#Create%20a%20Master-Detail%20page