InvokeAction

Question

Dear All:
In my page has an lineTable with one master table and two detail talbes,and it runs well. but after i added
( <invokeAction id="forceTableRefresh" Binds="findAllInfoByStatus"
RefreshCondition="${!adfFacesContext.postback}"/>
"findAllInfoByStatus" is the id of the methodAction.)
in this page's pageDefinition, When first time load this page, this page display errors:
1.JBO-29000: Unexpected exception caught: java.lang.NullPointerException, msg=null
2.java.lang.NullPointerException
and after first time it runs well.
This page just display the lineTable, what does the possible reasons cause the errors occur?
Alex

Answer 1

My pageDef is as follow:(an inLine table with just one detail table)
<executables>
<invokeAction id="forceTableRefresh" Binds="findAllInfoTest"
RefreshCondition="${!adfFacesContext.postback}"/>
<methodIterator id="findAllInfoTestIter"
Binds="findAllInfoTest.result"
DataControl="FacadeBeanLocal" RangeSize="10"
BeanClass="com.view.test.model.VscInfo"/>
</executables>
<bindings>
<methodAction id="findAllInfoTest"
InstanceName="FacadeBeanLocal.dataProvider"
DataControl="FacadeBeanLocal"
MethodName="findAllInfoTest"
RequiresUpdateModel="true" Action="999"
IsViewObjectMethod="false"
ReturnName="FacadeBeanLocal.methodResults.FacadeBeanLocal_dataProvider_findAllInfoTest_result"/>
<tree id="findAllInfoTest1"
IterBinding="findAllInfoTestIter">
<AttrNames>
<Item Value="approver"/>
<Item Value="attribute1"/>
<Item Value="attribute2"/>
<Item Value="attribute3"/>
<Item Value="attribute4"/>
<Item Value="attribute5"/>
<Item Value="attribute6"/>
<Item Value="attribute7"/>
<Item Value="attribute8"/>
<Item Value="attribute9"/>
<Item Value="createdBy"/>
<Item Value="creationDate"/>
<Item Value="description"/>
<Item Value="endDate"/>
<Item Value="lastUpdateDate"/>
<Item Value="progId"/>
<Item Value="progNumber"/>
<Item Value="startDate"/>
<Item Value="status"/>
<Item Value="approverName"/>
<Item Value="createdByName"/>
</AttrNames>
<nodeDefinition DefName="com.view.test.model.VscInfo"
id="VscInfoNode">
<AttrNames>
<Item Value="approver"/>
<Item Value="createdBy"/>
<Item Value="creationDate"/>
<Item Value="description"/>
<Item Value="endDate"/>
<Item Value="lastUpdateDate"/>
<Item Value="progId"/>
<Item Value="progNumber"/>
<Item Value="startDate"/>
<Item Value="status"/>
<Item Value="approverName"/>
<Item Value="createdByName"/>
</AttrNames>
<Accessors>
<Item Value="vscLineCollection"/>
</Accessors>
</nodeDefinition>
<nodeDefinition DefName="com.view.test.model.VscLine"
id="VscLineNode">
<AttrNames>
<Item Value="approver"/>
<Item Value="lastPrice"/>
<Item Value="lineId"/>
<Item Value="lineStatus"/>
<Item Value="newPrice"/>
<Item Value="viewsonicSku"/>
<Item Value="approverName"/>
</AttrNames>
<Accessors>
<Item Value="vscLineCompanyCollection"/>
</Accessors>
</nodeDefinition>
</tree>
</bindings>
Thanks.