Doubt about Tunning View Objects

Hi !. I have the following doubt about tunning View Objects:
If I have the following configuration on a VO:
All Rows
In Batches Of: 11
As Needed
Access Mode: Scrollable
Range Size: 10
Total Records On The Table: More than 100
What would happen is that while the initial render, the view cache is fetch with 11 rows from the table and the ui table shows 10. In subsequent scroll events, more queries again will be done but not when the user scrolls back. My doubt is this one: Why, while the initial render If I put a breakpoint in this overrided method executeQueryForCollection, the execution reachs there but in subsequent scroll events (forward) the execution doesn't reach there ?. I understand thast this should happen as the required rows are not yet in the cache. I would like to know a way to test this access mode and what method is executed in every roundtrip to the DB. Thankx !.

I don't think ADF needs to execute the query again - it just needs to fetch the next set of records.
So if the cursor is already open, no need to issue another query.
You can use the HTTP Analyzer to watch network traffic
Monitoring ADF Pages Round-Trips with the HTTP Analyzer
And you can use the logging features of ADF to see the queries being executed.
Declarative View Objects (VOs) for better ADF performance

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Doubt about 3.x objects

Hi gurus, I have a doubt.
If we have an new installation of BI 7.0 release, (so it isn't an upgrade or migration..), I can install 3.x version objects? Or this procedure is granted only for systems that have an old installation with the 3.x release?
Regards.

BI7.0 is downward compatible.....
it supports both 3.x as well as 7.0 and as far as objects are concerned infoobjects , cubes , DSOs etc are not affected by BI7.0

Creating View Objects at Runtime for Validation

In Oracle® Application Development Framework
Developer’s Guide For Forms/4GL Developers tutorial there is a topic about Creating View Objects at Runtime for Validation.
Is there any sample code available for this topic?
Please help
Regards
S Karar

I have created a helper method . The code is given below
protected ViewObject getValidationVO(String viewObjectDefName) {
// Create a new name for the VO instance being used for validation
String name = "Validation_" + viewObjectDefName.replace('.', '_');
// Try to see if an instance of this name already exists
ViewObject vo = getDBTransaction().getRootApplicationModule().findViewObject(name);
// If it doesn't already exist, create it using the definition name
if (vo == null) {
vo = getDBTransaction().getRootApplicationModule().createViewObject(name,viewObjectDefName);
return vo;
// Validation_bc4j_project of type ApplicationModule not found
and created a validation method.
The code inside validation method is given below.
public boolean validateAvgMr(Number data) {
String batch_catg = getQuality();
// Get the view object instance for validation
ViewObject vo = getValidationVO("bc4j_project.v_sqc0150");
if (getTestStage()=="DOLLOP" && getQuality()=="DECO")
// Set it's bind variables (which it will typically have!)
vo.setNamedWhereClauseParam("batch_catg","DECO");
vo.executeQuery();
Number dol_mr_lcl=(Number)vo.first().getAttribute("DolMrLclStd");
setStdMrLcl(dol_mr_lcl);
return true;
return true;
I have checked the validation view and it is returing value with the same bind variable value but is not returning any value when using inside this method validation.
I have checked several times but can't find the fault in the code.
Please help

Doubt about Scan and Update Catalog Objects That Require Updates link

Hi,
I have a doubt about 'Scan and Update Catalog Objects That Require Updates' link in Administration,
how can I know how many objects that required upgrading before I click this link???
in doc.
http://docs.oracle.com/cd/E28280_01/bi.1111/e10541/prescatadmin.htm#BIESG3750
section 17.2.4 Updating Catalog Objects
It is said 'You can confirm the need to update by viewing the metrics in Fusion Middleware Control. In the Catalog folder, find a metric called "Reads Needing Upgrade" with description "The number of objects read that required upgrading." '
but I don't find it . my OBIEE version :11.1.1.6.2
conld you pleae help me ??
thank you in advance.

That link should be there in 6 version.
I've verified in 11g6 version doc the same is existing
ref: http://docs.oracle.com/cd/E23943_01/bi.1111/e10541/prescatadmin.htm#BAJDDFFI
BTW:
http://docs.oracle.com/cd/E28280_01/bi.1111/e10541/prescatadmin.htm#BIESG3750is 11g7 version
Thanks,
http://cool-bi.com

Newbie question about entity and view objects

Hi everyone,
My first ADF application in JDeveloper is off to a difficult start. Having come from a forms background, I know that it is necessary avoid using post-query type lookups in order to have full filtering using F11/Ctrl+F11. This means creating an CRUDable view and getting as much of the lookup data as possible into the view without losing the ability to modify the data. In JDeveloper, I do not know how to build my data model to support that. My thought was to start with a robust updateable view as my main CRUD EO and then create a VO on top of that with additional EOs or VOs. But, I have found that I cannot add VOs to another VO. However, if I link the VOs then I have a master-detail which will not work for me.
For example, I have two joins to CSI_INST_EXTEND_ATTRIB_V shown in the queries below and need to have that show in the table displaying the CRUD VO’s data. It seemed that the best way to do this is to create a CSI_INST_EXTEND_ATTRIB_V entity object and view object. The view object would have two parameters, P_INSTANCE_ID and P_ATTRIBUTE name. Both the building and the unit are needed on the same record, and this is not a master-detail even though it might look that way. (A master-detail data control will not work for me because I need all this data to appear on the same line in the table.) So, I need help figuring out the best way to link these to the main (CRUD) view; I want as much of this data as possible to be filterable.
select
cieav.attribute_value
from
csi_inst_extend_attrib_v cieav
where cieav.instance_id = p_instance_id
and cieav.attribute_code = 'BUILDING NAME'
select
cieav.attribute_value
from
csi_inst_extend_attrib_v cieav
where cieav.instance_id = p_instance_id
and cieav.attribute_code = 'UNIT NAME'
Ultimately, I need to display a ton of data in each record displayed in the UI table, so a ton of joins will be needed. And, I need to be able to add records using the UI table also.
James

Hi Alejandro,
Sorry if I caused confusion with my first post. What I had in mind assumed that I could have a single CSI_INST_EXTEND_ATTRIB_V EO with a BuildingVO and UnitVO on top of it. So, I wrote the queries individually to show how I would invoke each view. When I realized that confused the issue, I rewrote the query to explain things better.
Now having seen your 2 queries. You need to create 2 EO. One for each table. Then create an association between the 2 aeO (this will be the join you are talking about). Then, you need to create a VO based on one of the EO and after you can modify and add the second EO (in here you select the join type).
After your done with this, youll have 1 VO that supports CRUD in both tables.
There were three tables in the query: CIEAV_BUILDING, CIEAV_UNIT, and T -- the main CRUD table. When you say that I should create two EOs, do you mean that they are to be for CIEAV_BUILDING and CIEAV_UNIT? Or, CIEAV and T? Assuming CIEAV and T, that sounds like it would allow me to show my building or unit on the record but not both.
By the way, everything is a reference except for the main CRUD table.
Look forward to hearing from you. Thanks for your help (and patience).

Extending view object

Hi all,
I need to extend one view object(ReqSupplierVO). Please help with the following problems,
1. What are the files i have to FTP and where i have to place those in my Jdeveloper directories.
2. Im clear about extending,substituting the VO but when i transferred it how it will work. Any xml files to change.
3. Is server.xml need. What its use.
4. Please give step by step instructions if possible bcaz im new to this area.
5. I refered Developers guide but im having doubt in basics that is needed files or the files to be modified and uploading the files.
6. .jpx what its use is we have to FTP this file also?.
Thanks,
B.Kannan.

1. What are the files i have to FTP and where i have to place those in my Jdeveloper directories.
- Depends on what module or page you want to extend. You need to identify the relevant files by using the About this page feature in the page in the env which will give you details.
3. Is server.xml need. What its use.
- It is for ease of loading the files, server.xml will help you load all the relevant business objects. You need to have all the files listed in the server.xml in the project.
4. Please give step by step instructions if possible bcaz im new to this area.
- once you start loading files by opening server.xml it will automatically show errors on missing files which you need to ftp.
5. I refered Developers guide but im having doubt in basics that is needed files or the files to be modified and uploading the files.
- same as answer to question 1, you still need the libraries from the middle tier to run the page in jdev even if you are not modifying them. If your can map a drive to the $JAVA_TOP you can place that in the library otherwise you need to zip the appropriate module class files and add it to the library.
6. .jpx what its use is we have to FTP this file also?.
- You donot need them, you need them only after you had created the substitutions for running jpximporter.

Questions on ADF View Objects, Links and Iterators

I have a number of questions regarding using ViewObjects in applications where there are alot of relationships between tables.
First, lets say that I have ViewObject SomeView that was added to the App Module (AM) as VO1. And because it has a number of "detail" records that have to be iterated through in a "report like" view it has those other VO's added under it as "children" in the AM.
So I have
VO1 (an instance of SomeView)
--> VO2 (an instance of some other view)
--> VO3 (an instance of some other view)
that is used on pages where only a single VO1 is shown at a time.
Now because I had another page I wanted to make that had a listing of all SomeView objects. Some of the fields in SomeView are foreign keys to records in VO2 and VO3 and while I don't want to show all the fields from VO2 and VO3, I do want to show a name field from each rather than just the foreign key.
My experience (though I've never read this anywhere) tells me that when doing a "table" that is a list of rows from a VO, you can't display info from the child VO's because the child VO's are on whatever record corresponds to the "currentRow" in the parent VO and just displaying the rows in a rangeSet doesn't make each the "currentRow" so even we display 10 records in a for loop, the "currentRow" is just one, and the child VO's iterators aren't moved as we go through the for loop. (Can someone confirm if I am correct on this conclusion????)
So the only way I know of to show some field from a related table in each row is to make the VO have the entity objects from the related tables be part of the view as references. Is this the only way?
If I do that on a view that didn't have other views as children defined in the AM I don't have any problem and it works like I want.
But if I do it on a view that did have other views as children defined in the AM it makes the page(s) using that view with the children iterators behave badly. Half the information quits showing up, etc.
For example, ... if I go to the "SomeView" which was defined with only one entity object association, and I add the entity objects (that are the basis of instances of VO2 and VO3 ) as referenceable only, it totally breaks the page where I display a single VO1 and use it's VO2 and VO3 children. IS THIS NORMAL OR AM I MISSING SOMETHING?
So, is the solution that I have to have more view objects defined for different purposes ?
Can anyone give any general guidelines for when/where to use different view objects vs. when to use different iterators. I'm not having much luck with using secondary RSI's and haven't found much info on them.
Also, how about issues of naming iterators that are in various binding containers (ie. UI Model for a page). If I do and LOV it creates an iterator and gives it a default name like ViewNameIterator1. If I already have a different page that uses a regular (non LOV) iterator with that name, and the user goes back and forth between those pages, is that a clash?
Finally, I've read a couple of Steve Muench's blogs on View Link consistency but I'm not sure what the rules are on when it applies and doesn't. How you turn it on or off, etc. One of his examples in http://radio.weblogs.com/0118231/2004/02/27.html talks about it in the context of two view objects that are NOT typically "linked" in a master/detail kind of way. Like an AllDepartments and a DepartmentsLessThan view. Do you have to create a View Link between them to have results of one be reflected in the other if they aren't used in the same page in a web app? Or does it happen automatically (with the caveat that you have to do the rowQualifies method). Just feels like I'm missing some pieces.
Thanks in advance,
Lynn

Hi,
I am also interested in a best-practice note from oracle.
Currently we store history in seperate history tables for columns that changed. All this implemented in our BaseEoImpl overriding the EntityImpl.prepareForDML().
Thanks

Maintaining data of view objects in cache memory for repeated usage

Hi,
     We are developing an application which is having around 800 viewobjects that will be used as LOV in different screens. Therefore, it is decided to create a separate project for all such LOV view objects and keep the same in shared scope so that the data can be made availabe across the application.
     The application also communicates with different database schemas based on the logged-in county. For a particular user, LOV view object LovView1 should get the data fetched from Schema1 whereas for user2, the same LovView1 should get the data from Schema2.
     For this, we have created n number of ApplicationModules like AM1, AM2 etc in the project each one being connected to different database. A base application module also has been created and all the county specific AMs extend this base AM. Also all the LOV view object instances are included in this base AM so that they will be available in the county specific AMs also.The entire project is made as an ADF Library jar and this base AM is utilized by other projects for mapping the LOV by attaching the library.
     At runtime, whenever a particular viewobject is accessed, the findViewObject() method of the baseAM has been overridden and the logic is built in such a way to get the logged in user's county code from a session variable and based on the county, the corresponding AM is communicated with and the view object is returned.
     The view objects of the LOV project is used as LOV as well as for doing some other backend processes. In such cases, the view object is obtained and necessary filter conditions are appended to the view criteria and is executed to get the filtered rowset.
Now, my questions are,
1. Is it enough to create the jar for the LOVProject and access the view objects from the same baseAM across the application?
2. I wish to keep all the data in cache memory to avoid repeated DB hits for all the LOV view objects. How it can be achieved? To be more precise, consider two users user1 and user2 logging into the application with different county. When user1 access a LOV viewobject for the first time, data needs to be fetched from the DB, kept in application scoped cache memory and return the rowset. On subsequent calls to the viewobject, the data needs to be retreived from the cache and not from the DB. When user2 also access the same LOV viewobject, the same logic as explained for user1 should happen. How can I achieve this? Actually my doubt is when user2 access, will the data pertaining to user1 remains available in cache? If not, how to make it retain the data in cache?
3. I also wish to append a particular where condition to a viewobject irrespective of other considerations like logged in county, existing view criteria etc.. How can I do this? A separate thread for this requirement has been posted in the forum Including additional where clause conditions to view criteria dynamically
Kindly give me your suggessions.
Thanks in advance.
Regards.

Hi Vijay,
regarding your questions:
1. What is the difference between "TimesTen In-Memory Database" and
"In-Memory Database Cache" in terms of features and licensing model?
==> Product has just been renamed and integrated better with the Oracle database - Times-Ten == In-Memory-Cache-Database
2. Is "In-Memory Database Cache" option integrated with Oracle 10g
installable or a separate installable (i.e. TimesTen installable with only
cache feature)?
==> Seperate Installation
3. Is "In-Memory Database Cache" option same as that of "TimesTen Cache
Connect to Oracle" option in TimesTen In-Memory Database?
==> Please have a look here: http://www.oracle.com/technology/products/timesten/quickstart/cc_qs_index.html
This explains the differences.
4. After integrating "In-Memory Database Cache" option with Oracle 10g, data
access will happen only through Oracle sqlplus or OCI calls. Am I right here
in making this statement?
==> Please see above mentioned papers
5. Is it possible to cache the result set of a join query in "In-Memory
Database Cache"?
==> Again ... ;-)
Kind regards
Mike

Issues in persisting dynamic entity and view objects using MDS

Hi All,
I'm trying to create dynamic entity and view objects per user session and to persist these objects throughout the session, I'm trying to use MDS configurations(either file or Database) in adf-config.xml.
I'm facing following two errors while trying to run the app module:
1. MDS error (MetadataNotFoundException): MDS-00013: no metadata found for metadata object "/model/DynamicEntityGenModuleOperations.xml"
2. oracle.mds.exception.ReadOnlyStoreException: MDS-01273: The operation on the resource /sessiondef/dynamic/DynamicDeptEntityDef.xml failed because source metadata store mapped to the namespace / DEFAULT is read only.
I've gone through the following links which talks about the cause of the issue, but still can't figure out the issue in the code or the config file. Please help if, someone has faced a similar issue.
[http://docs.oracle.com/cd/E28271_01/doc.1111/e25450/mds_trouble.htm#BABIAGBG |http://docs.oracle.com/cd/E28271_01/doc.1111/e25450/mds_trouble.htm#BABIAGBG ]
[http://docs.oracle.com/cd/E16162_01/core.1112/e22506/chapter_mds_messages.htm|http://docs.oracle.com/cd/E16162_01/core.1112/e22506/chapter_mds_messages.htm]
Attached is the code for dynamic entity/view object generation and corresponding adf-config.xml used.
///////////App Module Implementation Class/////////////////////////
public class DynamicEntityGenModuleImpl extends ApplicationModuleImpl implements DynamicEntityGenModule {
private static final String DYNAMIC_DETP_VO_INSTANCE = "DynamicDeptVO";
* This is the default constructor (do not remove).
public DynamicEntityGenModuleImpl() {
public ViewObjectImpl getDepartmentsView1() {
return (ViewObjectImpl) findViewObject("DynamicDeptVO");
public void buildDynamicDeptComp() {
ViewObject internalDynamicVO = findViewObject(DYNAMIC_DETP_VO_INSTANCE);
if (internalDynamicVO != null) {
System.out.println("OK VO exists, return Defn- " + internalDynamicVO.getDefFullName());
return;
EntityDefImpl deptEntDef = buildDeptEntitySessionDef();
ViewDefImpl viewDef = buildDeptViewSessionDef(deptEntDef);
addViewToPdefApplicationModule(viewDef);
private EntityDefImpl buildDeptEntitySessionDef() {
try {
EntityDefImpl entDef = new EntityDefImpl(oracle.jbo.server.EntityDefImpl.DEF_SCOPE_SESSION, "DynamicDeptEntityDef");
entDef.setFullName(entDef.getBasePackage() + ".dynamic." + entDef.getName());
entDef.setName(entDef.getName());
System.out.println("Application Module Path name: " + getDefFullName());
System.out.println("EntDef :" + entDef.getFileName() + " : " + entDef.getBasePackage() + ".dynamic." + entDef.getName());
entDef.setAliasName(entDef.getName());
entDef.setSource("DEPT");
entDef.setSourceType("table");
entDef.addAttribute("ID", "ID", Integer.class, true, false, true);
entDef.addAttribute("Name", "NAME", String.class, false, false, true);
entDef.addAttribute("Location", "LOCATION", Integer.class, false, false, true);
entDef.resolveDefObject();
entDef.registerSessionDefObject();
entDef.writeXMLContents();
entDef.saveXMLContents();
return entDef;
} catch (Exception ex) {
System.out.println(ex.getLocalizedMessage());
return null;
private ViewDefImpl buildDeptViewSessionDef(EntityDefImpl entityDef) {
try {
ViewDefImpl viewDef = new oracle.jbo.server.ViewDefImpl(oracle.jbo.server.ViewDefImpl.DEF_SCOPE_SESSION, "DynamicDeptViewDef");
viewDef.setFullName(viewDef.getBasePackage() + ".dynamic." + viewDef.getName());
System.out.println("ViewDef :" + viewDef.getFileName());
viewDef.setUseGlueCode(false);
viewDef.setIterMode(RowIterator.ITER_MODE_LAST_PAGE_FULL);
viewDef.setBindingStyle(SQLBuilder.BINDING_STYLE_ORACLE_NAME);
viewDef.setSelectClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
viewDef.setFromClauseFlags(ViewDefImpl.CLAUSE_GENERATE_RT);
viewDef.addEntityUsage("DynamicDeptUsage", entityDef.getFullName(), false, false);
viewDef.addAllEntityAttributes("DynamicDeptUsage");
viewDef.resolveDefObject();
viewDef.registerSessionDefObject();
viewDef.writeXMLContents();
viewDef.saveXMLContents();
return viewDef;
} catch (Exception ex) {
System.out.println(ex.getLocalizedMessage());
return null;
private void addViewToPdefApplicationModule(ViewDefImpl viewDef) {
oracle.jbo.server.PDefApplicationModule pDefAM = oracle.jbo.server.PDefApplicationModule.findDefObject(getDefFullName());
if (pDefAM == null) {
pDefAM = new oracle.jbo.server.PDefApplicationModule();
pDefAM.setFullName(getDefFullName());
pDefAM.setEditable(true);
pDefAM.createViewObject(DYNAMIC_DETP_VO_INSTANCE, viewDef.getFullName());
pDefAM.applyPersonalization(this);
pDefAM.writeXMLContents();
pDefAM.saveXMLContents();
////////adf-config.xml//////////////////////
<?xml version="1.0" encoding="windows-1252" ?>
<adf-config xmlns="http://xmlns.oracle.com/adf/config" xmlns:config="http://xmlns.oracle.com/bc4j/configuration" xmlns:adf="http://xmlns.oracle.com/adf/config/properties"
xmlns:sec="http://xmlns.oracle.com/adf/security/config">
<adf-adfm-config xmlns="http://xmlns.oracle.com/adfm/config">
<defaults useBindVarsForViewCriteriaLiterals="true"/>
<startup>
<amconfig-overrides>
<config:Database jbo.locking.mode="optimistic"/>
</amconfig-overrides>
</startup>
</adf-adfm-config>
<adf:adf-properties-child xmlns="http://xmlns.oracle.com/adf/config/properties">
<adf-property name="adfAppUID" value="TestDynamicEC-8827"/>
</adf:adf-properties-child>
<sec:adf-security-child xmlns="http://xmlns.oracle.com/adf/security/config">
<CredentialStoreContext credentialStoreClass="oracle.adf.share.security.providers.jps.CSFCredentialStore" credentialStoreLocation="../../src/META-INF/jps-config.xml"/>
</sec:adf-security-child>
<persistence-config>
<metadata-namespaces>
<namespace metadata-store-usage="mdsRepos" path="/sessiondef/"/>
<namespace path="/model/" metadata-store-usage="mdsRepos"/>
</metadata-namespaces>
<metadata-store-usages>
<metadata-store-usage default-cust-store="true" deploy-target="true" id="mdsRepos">
<metadata-store class-name="oracle.mds.persistence.stores.file.FileMetadataStore">
<property name="metadata-path" value="/tmp"/>

</metadata-store>
</metadata-store-usage>
</metadata-store-usages>
</persistence-config>
</adf-config>
//////////////////////////////////////////////////////////////////////////////////////////////////////////

Hi Frank,
I m trying to save entity and view object xml by calling writeXMLContents() and saveXMLContents() so that these objects can be retrieved using the xmls later on.
These methods internally use MDS configuration in adf-config.xml, which is creating the issue.
Please share your thoughts on resolving this or if, there is any other way of creating dynamic entity/view objects for db tables created at runtime.
Nik

Using EL to get values from View Objects

Hello again!
I' m using jdev 11.1.1.4.0, with adf and business components
Is there any way i can get a value to an af:outputText from a view object's field without
a) having to expose all fields that I need in bindings tab?
b) having to declare all fields to a backing bean
I have a statistical table with about 30 numbers in a record and it would make my project impossible to follow!
Some EL on the af:outputText with a parameter to a function on my backing bean, would sound perfect, but I've read that it's impossible...
Any clues?
Thank you for your efforts!
Nikos

I did not understand you.
will the drag and drop your attribute on your page will solve your problem?
or do you need to create attributeValues biding for single attribute? if yes do the following:
1- From your page, right click and select Go to Page Definition.
2- From the binding section, click the plus green icon to create a new control biding, and choose attributeValues from the list.
3- select your data source from the list or create a new one, then select the attribute you need.
4- now you have a biding, and you can set the value for your output text.
value =#{biding.yourAttribute.inputValue}

Uix two view-objects on one entity-object synchronize

Hi All
I want to add some uix pages to an old project using ADF UIX and Business Components.
I have an entity object to a table witch about 50 fields.
Now I create two view objects due to a better performance. One witch seven attributes for the overwiew and one with all attributes for the detail page.
They are related via a view link.
I create the overview as a read-only-table and the detail-page as an input-form.
The proplem is that the synchronization don't work. The detail page shows the first dataset ever.
Has anyone a solution or a tip where I can found that?
Is where a performance problem if I use one view-object for both pages?
Thanks in advance
Roger

Use custom DataAction for the first page:
package controller;
import oracle.adf.controller.struts.actions.DataAction;
import oracle.adf.controller.struts.actions.DataActionContext;
public class Class1 extends DataAction
protected void validateModelUpdates(DataActionContext actionContext)
//super.validateModelUpdates(actionContext);
// put you custom validation here
}http://www.oracle.com/technology/products/jdev/collateral/papers/10g/ADFBindingPrimer/index.html#usingdataaction
Message was edited by:
Sasha
Message was edited by:
Sasha

[SOLVED] Multiple Dynamic View Objects and View Links - ADF Tree Table

Hi all,
I've got a method that creates 3 dynamic viewobjects using this:
            ViewDefImpl Level1ViewDef = new ViewDefImpl("Level1View");
            Level1ViewDef.addViewAttribute("LevelDescription","LEVEL1_DESCRIPTION",String.class);
            Level1ViewDef.addViewAttribute("SetOfBooksId","SET_OF_BOOKS_ID",Number.class);
            Level1ViewDef.addViewAttribute("CodeCombinationId","CODE_COMBINATION_ID",Number.class);
            Level1ViewDef.addViewAttribute("Level1","LEVEL1",String.class);
            Level1ViewDef.addViewAttribute("AccountType","ACCOUNT_TYPE",String.class);
            Level1ViewDef.addViewAttribute("PeriodYear","PERIOD_YEAR",Number.class);
            Level1ViewDef.addViewAttribute("PeriodNum","PERIOD_NUM",Number.class);
            Level1ViewDef.addViewAttribute("PeriodName","PERIOD_NAME",String.class);
            Level1ViewDef.addViewAttribute("PtdActual","PTD_ACTUAL",Number.class);
            Level1ViewDef.addViewAttribute("YtdActual","YTD_ACTUAL",Number.class);
            Level1ViewDef.addViewAttribute("LtdActual","LTD_ACTUAL",Number.class);
            Level1ViewDef.addViewAttribute("BudgetName","BUDGET_NAME",String.class);
            Level1ViewDef.addViewAttribute("BudgetVersionId","BUDGET_VERSION_ID",Number.class);
            Level1ViewDef.addViewAttribute("PtdBudget","PTD_BUDGET",Number.class);
            Level1ViewDef.addViewAttribute("YtdBudget","YTD_BUDGET",Number.class);
            Level1ViewDef.addViewAttribute("LtdBudget","LTD_BUDGET",Number.class);
            Level1ViewDef.addViewAttribute("EncumbranceType","ENCUMBRANCE_TYPE",String.class);
            Level1ViewDef.addViewAttribute("EncumbranceTypeId","ENCUMBRANCE_TYPE_ID",Number.class);
            Level1ViewDef.addViewAttribute("PtdCommitment","PTD_COMMITMENT",Number.class);
            Level1ViewDef.addViewAttribute("YtdCommitment","YTD_COMMITMENT",Number.class);
            Level1ViewDef.addViewAttribute("LtdCommitment","LTD_COMMITMENT",Number.class);
            Level1ViewDef.setQuery(sql_level1);
            Level1ViewDef.setFullSql(true);
            Level1ViewDef.setBindingStyle(SQLBuilder.BINDING_STYLE_ORACLE_NAME);
            Level1ViewDef.resolveDefObject();
            Level1ViewDef.registerDefObject();
            ViewObject vo1 = createViewObject("Level1View",Level1ViewDef);I can create the view objects fine and create a single viewlink between two of them, however i'm getting problems with 2 view links.
This is how I'm creating a view link:
            ViewLink Level2Level1FKLink = createViewLinkBetweenViewObjects("Level2Level1FKLink1",
                                                    "Level2View",
                                                    vo1,
                                                    new AttributeDef[]{
                                                      vo1.findAttributeDef("Level1")
                                                    vo2,
                                                    new AttributeDef[]{
                                                      vo2.findAttributeDef("Level1")
                                                    "LEVEL1 = :Bind_Level1");
            ViewLink Level3Level2FKLink = createViewLinkBetweenViewObjects("Level3Level2FKLink1",
                                                    "Level3View",
                                                    vo2,
                                                    new AttributeDef[]{
                                                      vo2.findAttributeDef("Level2")
                                                    vo3,
                                                    new AttributeDef[]{
                                                      vo3.findAttributeDef("Level2")
                                                    "LEVEL2 = :Bind_Level2");I can get the data to display on an adf tree table if i'm only using a single view link, but when i try and implement 2 view link (for 3 levels on the adf tree table) i'm getting problems displaying the data.
I'm getting the following error:
Aug 10, 2007 2:44:39 PM oracle.adfinternal.view.faces.renderkit.core.xhtml.PanelPartialRootRenderer encodeAll
SEVERE: Error during partial-page rendering
oracle.jbo.NoDefException: JBO-25058: Definition Level3View of type Attribute not found in Level2View_Level2Level1FKLink1_Level2ViewThe thing is, Level3View isn't in the Level2Level1FKLink viewlink.
I've been reading about something similar here
BC4J Master-Detail-Detail
but I am still unsure of what the problem is.
Thanks in advance.

I found the answer here:
http://radio.weblogs.com/0118231/stories/2004/06/10/correctlyImplementingMultilevelDynamicMasterDetail.html

View objects, view links, does not search properly

Hi,
I am using Jdev 11.1.2.0
I have created a search criteria based on view objects and view links. It has entities and entity associations as base. The structure is as follow:
vo1 ->vl (1 to 1) - > vo2
->vl ( 1 to many) -> vo3
Any search attribute which is not from vo1 return bad result. It happens in running app module and in the jspx page. In app module, it sometimes complains about populating the wrong attribute for the named criteria.
The search criteria is using "exists" statement for vo2 and vo3 for adding the conditions. It has many attributes within the exist statement.
So what is the problem. Why it does not join properly? Why does it return bad result when search attribute is from vo2 and vo3? Please help.
Any more information requires to solve the problem?
Thanks,
Arthur

Hi,
Two more information: vo1 is composed of Entity1 (1..M) Entity2 and Entity1 (1..1) Entity 3. vo2 is composed of Entity 2 and vo3 is composed of Entity 4.
I follow the information from http://download.oracle.com/docs/cd/E16162_01/web.1112/e16182/bcquerying.htm#BCGIFHHF
to create the search criteria.
Arthur

ADF View objects question

Hello,
I created a view object (which bases on an entity object) that I'd like to use for searching for records in a table called "CARS". Cars will be searched by names. I also have a JSP page for adding cars (administration functionality).
The situation is as follows:
1. I go to the page for adding cars and click "Submit" (which only submits data without committing to the database).
2. Then I have validation errors (which is ok because some fields are mandatory).
3. I search for cars by name.
The funny part is that if I search for cars with given names, I get those cars AND I get the empty row with this new car I'd tried to add just a moment ago. It's definitely not yet in the database and the name of this car is not set (so it shouldn't match with the name I'm searching for).
My question is: why is it happening and what should I do to get the rows created but not yet committed not appear in the search results?
I tried to use clearCache() method of ViewObjectImpl but the result is still the same.
Please help because I desperately need this for my diploma project.
Thanks,
Anna

I run: "java -Djbo.viewlink.consistent=false -jar oc4j.jar" and I still get new rows. I'm using OC4J 10g (9.0.4.0.0) standalone that comes with JDeveloper 10g (9.0.5.2) on Linux.
And about that Create pages: I mean I click on a link "New something" 3 times (for example). I don't use the browser back button because I have my menu on each page. In this case I'm just curious if it's possible to somehow "overwrite" previous "new" rows with the most recent one.
I thought I would need that but now I know I need something else.
Imagine such a situation:
1. A user wants to create a new row or update an existing one.
2. They start filling the form and submit it (in my case it's committing at the same time)
3. During validation it turns out that some required values are missing so the user has to enter them.
4. At this point the user leaves the input form and decides to add or update a different row.
5. The user enters all the required values and this time validation would succeed. However, because of points 2. and 3. it does not.
Now my question is: how can I make ADF somehow "forget" about the row inserted/updated in point 2. I know that ADF validates all new/changed rows at a time. But I would like to change that behavior so that it would validate only the row changed/created most recently.
Thanks,
Anna

Programmatic View Objects + View Links

Ive constructed some programmatic view objects to grab data from 2 custom java business services (for example: Persons and Addresses). The reasons for them being custom and separate are out of my control.
I need to easily represent a relationship between these 2 view objects so Ive constructed a ViewLink between them. However I cant figure out exactly what ADF needs from me in terms of method implementations in my ViewObjects?
When I drop the master data control onto a JSF via a Tree table, it looks as though its not actually filtering the detail rows. I.e. if master is a Person, and detail objects are Addresses, each Person tree node has all Addresses under it. Im assuming this is because the Address ViewObject is programmatic and so ADF doesn't know how to filter the results?
How can I setup this ViewLink between 2 programmatic ViewObjects such that the ViewLink works like its supposed to?

Hello,
Steve Muench´s sample 132 implements what you are trying to accomplish. Inspect the sample and let us know if you have questions about it.
http://blogs.oracle.com/smuenchadf/resource/examples#132
Juan C.

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