Adding LOV on fly

Question

I'm trying to create new ViewObject with LOV on fly.
This is my code:
/*creating Entity for new View*/
EntityDefImpl newEntity = new EntityDefImpl("DYNAMIC_EO");
newEntity.setSource("MODUL");
AttributeDefImpl newAttrDef1 =
newEntity.addAttribute("Id", "ID", Integer.class,
true, false, true);
newAttrDef1.setUpdateableFlag(AttributeDef.UPDATEABLE);
newAttrDef1 =newEntity.addAttribute("Name", "NAME", String.class,false, false, true);
newAttrDef1.setUpdateableFlag(AttributeDef.UPDATEABLE);
newEntity.resolveDefObject();
newEntity.registerDefObject();
/*creating new View*/
ViewDefImpl newView = new ViewDefImpl("TestView");
newView.addEntityUsage("e", "DYNAMIC_EO", false, false);
newView.addAllEntityAttributes("e");
newView.setFetchSize((short)30);
newView.setSelectClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
newView.setWhereClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
newView.setFromClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
/*creating Entity for LOV*/
EntityDefImpl newEntityLov = new EntityDefImpl("LOV_EO");
newEntityLov.setSource("LOV_TEXT");
newAttrDef1 =
newEntityLov.addAttribute("Id", "ID", Integer.class,
true, false, true);
newAttrDef1.setUpdateableFlag(AttributeDef.UPDATEABLE);
newAttrDef1 =newEntityLov.addAttribute("Text", "TEXT", String.class,false, false, true);
newAttrDef1.setUpdateableFlag(AttributeDef.UPDATEABLE);
newEntityLov.resolveDefObject();
newEntityLov.registerDefObject();
/*creating LOV view*/
ViewDefImpl lov = new ViewDefImpl("model.lov.TestLOV");
lov.addEntityUsage("e", "LOV_EO", false, false);
lov.addAllEntityAttributes("e");
lov.setFetchSize((short)30);
lov.setSelectClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
lov.setWhereClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
lov.setFromClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
lov.resolveDefObject();
lov.registerDefObject();
createViewObjectForDef("TestLOV", lov);
String viewAccessorName = "TextLOV";
String lovName = "LOV_Id";
String listDataSourceViewDefName = "model.lov.TestLOV";
/*adding LOV to view*/
ViewAccessorDef vdef = new ViewAccessorDef();
vdef.setName(viewAccessorName);
vdef.setViewDefFullName(listDataSourceViewDefName);
vdef.setRowLevelBinds(true);
newEmpViewDef.addViewAccessorDef(vdef);
newEmpViewDef.resolveDefObject();
newEmpViewDef.registerDefObject();
ListBindingDef listBindingDef =
buildListBindingDef(newEmpViewDef.getDefManager(),
viewAccessorName, lovName,
new String[] { "Id" },
new String[] { "Id" },
new String[] { "Text" });
newEmpViewDef.addListBindingDef(listBindingDef);
newEmpViewDef.resolveDefObject();
newEmpViewDef.registerDefObject();
int clmnIndex = newEmpViewDef.getAttributeIndexOf("Id");
AttributeDefImpl _voAttrDef =
(AttributeDefImpl)newEmpViewDef.getAttributeDef(clmnIndex);
_voAttrDef.setLOVName(lovName);
voAttrDef.setProperty(AttributeHints.ATTRIBUTECTL_TYPE,
AttributeHints.CTLTYPE_COMBO);
newView.resolveDefObject();
newView.registerDefObject();
createViewObject("TestView", "TestView");
public ListBindingDef buildListBindingDef(DefinitionManager defMgr,
String listVOName,
String listBindingName,
String[] attribNames,
String[] listAttribNames,
String[] listDisplayAttribNames) {
ListBindingDef lstbindingDef =
new ListBindingDef(defMgr, DefinitionObject.DEF_SCOPE_PERS);
lstbindingDef.setListVOName(listVOName);
lstbindingDef.setName(listBindingName);
lstbindingDef.setListRangeSize(-1);
lstbindingDef.setNullValueFlag(AbstractListBinding.LIST_ADD_NULL_NOWHERE);
lstbindingDef.setNullValueId("");
lstbindingDef.setAttrNames(attribNames);
lstbindingDef.setListDisplayAttrNames(listDisplayAttribNames);
lstbindingDef.setListAttrNames(listAttribNames);
return lstbindingDef;
but running the page (method is executed before navigating to the page with dynamic component) I get JBO-25002: Definition model.lov.TestLOV of type View Definition is not found
as if the view object I've made on fly doesn't exist.....any ideas?

Answer 1

Hi Timo,
I was experimenting with the same until I found this forum post.
Our requirement asks for a search query where the searchable attributes are dynamically added View Object attributes (list of attributes is based on some other user configuration). Each attribute have associated list of values, thus I need to create a VO, ListBindingDefs, ViewAccessorDefs during runtime.
I am able to do the above, to the point where I see the dynamically added attribute in the query panel, and in the form of a choicelist, with proper list values obtained from my programmatically created VO accessor. However, when I select a value and click on Search, I do see the same issue where FacesCtrlListBinding.setInputValue>...>JUCtrlListBinding.setAttributeFromValueList throws an exception (see below).
But because this is in a query panel, I do not have control over the individual search attributes.. Do you have any suggestion on how to go around this issue?
Thanks,
Yimin
<buildFacesMessage> ADF: Adding the following JSF error message: <html>An application error occurred. See the incident log for more information.<br><br>An application error has occurred. Your help desk can use the following information to obtain a more detailed description of this incident: 153, Server Domain: DefaultDomain, Server Instance: DefaultServer, Application Name: HcmTime.</html>
oracle.jbo.JboException: <html>An application error occurred. See the incident log for more information.<br><br>An application error has occurred. Your help desk can use the following information to obtain a more detailed description of this incident: 153, Server Domain: DefaultDomain, Server Instance: DefaultServer, Application Name: HcmTime.</html>
at oracle.apps.fnd.applcore.messages.MessageFormatHandler.reportException(MessageFormatHandler.java:216)
at oracle.adf.model.binding.DCDataControl.reportException(DCDataControl.java:410)
at oracle.adf.model.binding.DCDataControl.reportException(DCDataControl.java:391)
at oracle.adf.model.binding.DCBindingContainer.reportException(DCBindingContainer.java:418)
at oracle.adf.model.binding.DCBindingContainer.reportException(DCBindingContainer.java:473)
at oracle.adf.model.binding.DCControlBinding.reportException(DCControlBinding.java:201)
at oracle.jbo.uicli.binding.JUCtrlListBinding.setAttributeFromValueList(JUCtrlListBinding.java:2880)
at oracle.jbo.uicli.binding.JUCtrlListBinding.setSelectedIndex(JUCtrlListBinding.java:1746)
at oracle.jbo.uicli.binding.JUCtrlListBinding.setInputValueInRow(JUCtrlListBinding.java:3530)
at oracle.jbo.uicli.binding.JUCtrlValueBinding.setInputValue(JUCtrlValueBinding.java:2813)
at oracle.jbo.uicli.binding.JUCtrlValueBinding.setInputValue(JUCtrlValueBinding.java:2776)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlListBinding.setInputValue(FacesCtrlListBinding.java:226)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlSearchBinding$AdfCriterionValues.set(FacesCtrlSearchBinding.java:3500)
at javax.el.ListELResolver.setValue(ListELResolver.java:240)
at oracle.adfinternal.view.faces.model.AdfELResolver.setValue(AdfELResolver.java:132)
at javax.el.CompositeELResolver.setValue(CompositeELResolver.java:283)
at com.sun.faces.el.DemuxCompositeELResolver._setValue(DemuxCompositeELResolver.java:252)
at com.sun.faces.el.DemuxCompositeELResolver.setValue(DemuxCompositeELResolver.java:278)
at com.sun.el.parser.AstValue.setValue(Unknown Source)
at com.sun.el.ValueExpressionImpl.setValue(Unknown Source)
at org.apache.myfaces.trinidad.component.UIXEditableValue.updateModel(UIXEditableValue.java:289)
at org.apache.myfaces.trinidad.component.UIXEditableValue.processUpdates(UIXEditableValue.java:252)