Lov issue

Question

Hi everybody,
i am getting error as below
ADF_FACES-60096:Server Exception during PPR, #2
javax.el.PropertyNotFoundException: Target Unreachable, identifier 'row' resolved to null
     at com.sun.el.parser.AstValue.getTarget(Unknown Source)
     at com.sun.el.parser.AstValue.isReadOnly(Unknown Source)
     at com.sun.el.ValueExpressionImpl.isReadOnly(Unknown Source)
when try select value from select one choice soc1.... when i selected a value from list iam not getting this error.from second time onwards i am getting this error.Please find below the vo i used industryratingVO in my app
<ViewObject
  xmlns="http://xmlns.oracle.com/bc4j"
  Name="IndustryRatingVO"
  Version="11.1.1.59.23"
  SelectList="IndustryRatingEO.ID_CODE,
       IndustryRatingEO.PLACE,
       IndustryRatingEO.RATING_DESC,
       IndustryRatingEO.RATING_ID,
       IndustryRatingEO.RATING_SUB_ID"
  FromList="INDUSTRY_RATING IndustryRatingEO"
  BindingStyle="OracleName"
  CustomQuery="false"
  PageIterMode="Full"
  UseGlueCode="false">
  <Properties>
    <SchemaBasedProperties>
      <LABEL
        ResId="model.IndustryRatingVO_LABEL"/>
    </SchemaBasedProperties>
  </Properties>
  <ViewAccessor
    Name="LOV1VO1"
    ViewObjectName="model.LOV1VO"
    RowLevelBinds="true"/>
  <ViewAccessor
    Name="LOV2VO1"
    ViewObjectName="model.LOV2VO">
    <ViewCriteriaUsage
      Name="LOV2VOCriteria"
      FullName="model.LOV2VO.LOV2VOCriteria"/>
    <ParameterMap>
      <PIMap Variable="p_id_code">
        <TransientExpression><![CDATA[RatingId]]></TransientExpression>
      </PIMap>
    </ParameterMap>
  </ViewAccessor>
  <ListBinding
    Name="LOV_RatingId"
    ListVOName="LOV1VO1"
    ListRangeSize="-1"
    NullValueFlag="none"
    NullValueId="LOV_RatingId_LOVUIHints_NullValueId"
    MRUCount="0">
    <AttrArray Name="AttrNames">
      <Item Value="RatingId"/>
    </AttrArray>
    <AttrArray Name="ListAttrNames">
      <Item Value="CodeId"/>
    </AttrArray>
    <AttrArray Name="ListDisplayAttrNames">
      <Item Value="CodeId"/>
    </AttrArray>
    <DisplayCriteria/>
  </ListBinding>
  <ListBinding
    Name="LOV_RatingSubId"
    ListVOName="LOV2VO1"
    ListRangeSize="-1"
    NullValueFlag="none"
    NullValueId="LOV_RatingSubId_LOVUIHints_NullValueId"
    MRUCount="0">
    <AttrArray Name="AttrNames">
      <Item Value="RatingSubId"/>
    </AttrArray>
    <AttrArray Name="ListAttrNames">
      <Item Value="CodeSubId"/>
    </AttrArray>
    <AttrArray Name="ListDisplayAttrNames">
      <Item Value="CodeSubId"/>
      <Item Value="Rating"/>
    </AttrArray>
    <DisplayCriteria/>
  </ListBinding>
  <EntityUsage
    Name="IndustryRatingEO"
    Entity="model.IndustryRatingEO"/>
  <ViewAttribute
    Name="IdCode"
    PrecisionRule="true"
    EntityAttrName="IdCode"
    EntityUsage="IndustryRatingEO"
    AliasName="ID_CODE"/>
  <ViewAttribute
    Name="Place"
    PrecisionRule="true"
    EntityAttrName="Place"
    EntityUsage="IndustryRatingEO"
    AliasName="PLACE"/>
  <ViewAttribute
    Name="RatingDesc"
    PrecisionRule="true"
    EntityAttrName="RatingDesc"
    EntityUsage="IndustryRatingEO"
    AliasName="RATING_DESC"/>
  <ViewAttribute
    Name="RatingId"
    PrecisionRule="true"
    EntityAttrName="RatingId"
    EntityUsage="IndustryRatingEO"
    AliasName="RATING_ID"
    LOVName="LOV_RatingId">
    <Properties>
      <SchemaBasedProperties>
        <CONTROLTYPE
          Value="combo"/>
      </SchemaBasedProperties>
    </Properties>
  </ViewAttribute>
  <ViewAttribute
    Name="RatingSubId"
    PrecisionRule="true"
    EntityAttrName="RatingSubId"
    EntityUsage="IndustryRatingEO"
    AliasName="RATING_SUB_ID"
    LOVName="LOV_RatingSubId">
    <Properties>
      <SchemaBasedProperties>
        <CONTROLTYPE
          Value="combo"/>
      </SchemaBasedProperties>
    </Properties>
  </ViewAttribute>
  <ResourceBundle>
    <PropertiesBundle
      PropertiesFile="model.ModelBundle"/>
  </ResourceBundle>
</ViewObject>Below is the code i have written
<af:form id="f1">
        <af:table value="#{bindings.IndustryListVO1.collectionModel}" var="row"
                  rows="#{bindings.IndustryListVO1.rangeSize}"
                  emptyText="#{bindings.IndustryListVO1.viewable ? 'No data to display.' : 'Access Denied.'}"
                  fetchSize="#{bindings.IndustryListVO1.rangeSize}"
                  rowBandingInterval="0"
                  filterModel="#{bindings.IndustryListVO1Query.queryDescriptor}"
                  queryListener="#{bindings.IndustryListVO1Query.processQuery}"
                  filterVisible="true" varStatus="vs"
                  selectedRowKeys="#{bindings.IndustryListVO1.collectionModel.selectedRow}"
                  selectionListener="#{bindings.IndustryListVO1.collectionModel.makeCurrent}"
                  rowSelection="single" id="t1" width="389"
                  inlineStyle="height:151px;">
          <af:column sortProperty="IdDesc" filterable="true" sortable="true"
                     headerText="#{bindings.IndustryListVO1.hints.IdDesc.label}"
                     id="c2">
            <af:inputText value="#{row.bindings.IdDesc.inputValue}"
                          label="#{bindings.IndustryListVO1.hints.IdDesc.label}"
                          required="#{bindings.IndustryListVO1.hints.IdDesc.mandatory}"
                          columns="#{bindings.IndustryListVO1.hints.IdDesc.displayWidth}"
                          maximumLength="#{bindings.IndustryListVO1.hints.IdDesc.precision}"
                          shortDesc="#{bindings.IndustryListVO1.hints.IdDesc.tooltip}"
                          id="it2">
              <f:validator binding="#{row.bindings.IdDesc.validator}"/>
            </af:inputText>
          </af:column>
          <af:column sortProperty="IdName" filterable="true" sortable="true"
                     headerText="#{bindings.IndustryListVO1.hints.IdName.label}"
                     id="c3">
            <af:inputText value="#{row.bindings.IdName.inputValue}"
                          label="#{bindings.IndustryListVO1.hints.IdName.label}"
                          required="#{bindings.IndustryListVO1.hints.IdName.mandatory}"
                          columns="#{bindings.IndustryListVO1.hints.IdName.displayWidth}"
                          maximumLength="#{bindings.IndustryListVO1.hints.IdName.precision}"
                          shortDesc="#{bindings.IndustryListVO1.hints.IdName.tooltip}"
                          id="it1">
              <f:validator binding="#{row.bindings.IdName.validator}"/>
            </af:inputText>
          </af:column>
          <af:column sortProperty="IdPlace" filterable="true" sortable="true"
                     headerText="#{bindings.IndustryListVO1.hints.IdPlace.label}"
                     id="c1">
            <af:inputText value="#{row.bindings.IdPlace.inputValue}"
                          label="#{bindings.IndustryListVO1.hints.IdPlace.label}"
                          required="#{bindings.IndustryListVO1.hints.IdPlace.mandatory}"
                          columns="#{bindings.IndustryListVO1.hints.IdPlace.displayWidth}"
                          maximumLength="#{bindings.IndustryListVO1.hints.IdPlace.precision}"
                          shortDesc="#{bindings.IndustryListVO1.hints.IdPlace.tooltip}"
                          id="it3">
              <f:validator binding="#{row.bindings.IdPlace.validator}"/>
            </af:inputText>
          </af:column>
        </af:table>
        <af:table value="#{bindings.IndustryRatingVO1.collectionModel}"
                  var="row" rows="#{bindings.IndustryRatingVO1.rangeSize}"
                  emptyText="#{bindings.IndustryRatingVO1.viewable ? 'No data to display.' : 'Access Denied.'}"
                  fetchSize="#{bindings.IndustryRatingVO1.rangeSize}"
                  rowBandingInterval="0"
                  filterModel="#{bindings.IndustryRatingVO1Query.queryDescriptor}"
                  queryListener="#{bindings.IndustryRatingVO1Query.processQuery}"
                  filterVisible="true" varStatus="vs"
                  selectedRowKeys="#{bindings.IndustryRatingVO1.collectionModel.selectedRow}"
                  selectionListener="#{bindings.IndustryRatingVO1.collectionModel.makeCurrent}"
                  rowSelection="single" id="t2" partialTriggers="::t1">
          <af:column sortProperty="Place" filterable="true" sortable="true"
                     headerText="#{bindings.IndustryRatingVO1.hints.Place.label}"
                     id="c5">
            <af:inputText value="#{row.bindings.Place.inputValue}"
                          label="#{bindings.IndustryRatingVO1.hints.Place.label}"
                          required="#{bindings.IndustryRatingVO1.hints.Place.mandatory}"
                          columns="#{bindings.IndustryRatingVO1.hints.Place.displayWidth}"
                          maximumLength="#{bindings.IndustryRatingVO1.hints.Place.precision}"
                          shortDesc="#{bindings.IndustryRatingVO1.hints.Place.tooltip}"
                          id="it4">
              <f:validator binding="#{row.bindings.Place.validator}"/>
            </af:inputText>
          </af:column>
          <af:column sortProperty="RatingId" filterable="true" sortable="true"
                     headerText="#{bindings.IndustryRatingVO1.hints.RatingId.label}"
                     id="c6">
            <af:selectOneChoice value="#{row.bindings.RatingId.inputValue}"
                                label="#{row.bindings.RatingId.label}"
                                required="#{bindings.IndustryRatingVO1.hints.RatingId.mandatory}"
                                shortDesc="#{bindings.IndustryRatingVO1.hints.RatingId.tooltip}"
                                id="soc1" autoSubmit="true">
              <f:selectItems value="#{row.bindings.RatingId.items}" id="si1"/>
            </af:selectOneChoice>
          </af:column>
          <af:column sortProperty="RatingSubId" filterable="true"
                     sortable="true"
                     headerText="#{bindings.IndustryRatingVO1.hints.RatingSubId.label}"
                     id="c4">
            <af:selectOneChoice value="#{row.bindings.RatingSubId.inputValue}"
                                label="#{row.bindings.RatingSubId.label}"
                                required="#{bindings.IndustryRatingVO1.hints.RatingSubId.mandatory}"
                                shortDesc="#{bindings.IndustryRatingVO1.hints.RatingSubId.tooltip}"
                                id="soc2" partialTriggers="soc1">
              <f:selectItems value="#{row.bindings.RatingSubId.items}"
                             id="si2"/>
            </af:selectOneChoice>
          </af:column>
        </af:table>
      </af:form>Can you please help me in resolving this error?.i am using jdeveloper version 11.1.1.4.0
Thanks
KM
Edited by: Mr. Murali on Oct 4, 2011 11:04 AM
Edited by: Mr. Murali on Oct 4, 2011 11:05 AM

Answer 1

i hope so everything existed as you said..you can also see below code
<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
                version="11.1.1.59.23" id="IndustryPageDef"
                Package="mfpa.view.pageDefs">
  <parameters/>
  <executables>
    <variableIterator id="variables"/>
    <iterator Binds="IndustryListVO1" RangeSize="25"
              DataControl="AppModuleDataControl" id="IndustryListVO1Iterator"/>
    <searchRegion Binds="IndustryListVO1Iterator" Criteria=""
                  Customizer="oracle.jbo.uicli.binding.JUSearchBindingCustomizer"
                  id="IndustryListVO1Query"/>
    <iterator Binds="IndustryRatingVO1" RangeSize="25"
              DataControl="AppModuleDataControl"
              id="IndustryRatingVO1Iterator"/>
    <searchRegion Binds="IndustryRatingVO1Iterator" Criteria=""
                  Customizer="oracle.jbo.uicli.binding.JUSearchBindingCustomizer"
                  id="IndustryRatingVO1Query"/>
  </executables>
  <bindings>
    <tree IterBinding="IndustryListVO1Iterator" id="IndustryListVO1">
      <nodeDefinition DefName="mfpa.model.IndustryListVO"
                      Name="IndustryListVO10">
        <AttrNames>
          <Item Value="IdDesc"/>
          <Item Value="IdName"/>
          <Item Value="IdPlace"/>
        </AttrNames>
      </nodeDefinition>
    </tree>
    <tree IterBinding="IndustryRatingVO1Iterator" id="IndustryRatingVO1">
      <nodeDefinition DefName="mfpa.model.IndustryRatingVO"
                      Name="IndustryRatingVO10">
        <AttrNames>
          <Item Value="Place"/>
          <Item Value="RatingId"/>
          <Item Value="RatingSubId"/>
        </AttrNames>
      </nodeDefinition>
    </tree>
    <listOfValues StaticList="false" IterBinding="IndustryRatingVO1Iterator"
                  Uses="LOV_RatingId" id="RatingId"/>
    <listOfValues StaticList="false" IterBinding="IndustryRatingVO1Iterator"
                  Uses="LOV_RatingSubId" id="RatingSubId"/>
    <listOfValues StaticList="false" IterBinding="IndustryRatingVO1Iterator"
                  Uses="LOV_ViewAttr" id="ViewAttr"/>
  </bindings>
</pageDefinition>for this view IndustryRatingVO1 i want to two more attributes which are transiant and caculated values i will get from database package.
i want to show the calculated values from database for these attributes in my jsf page.
i tried using groovy...but i have to call the db again for second time to display second value.
is there any best way where i want to call the db package only for one row.?
Edited by: Mr. Murali on Oct 4, 2011 11:22 PM