Multi Model project but one view object

Hi Gurus,
I would like to fetch data from multiple database base tables and display them in one table. Is this possible to create multiple model project and have just one View object that is fed by
model objects?
Thanks,
Jai.

Hi Chris,
I have multiple database/schemas, all the schemas have the same table, I want to display the table buit one of the field value (say creation date) differes in each of these schema tables.
I want to display table information with the creation date(one for each schema) in a ADF table. I was wondering if we could converge multi-model in to one view object which has the creation_date1,2,3 (one for each
model).
Thanks,
Jai.

Similar Messages

Two Queries, One View Object

I have two fairly different ways to query the same table.
One is a Spatial query, which returns rows that are within a radius of a starting point. This has the distance from the starting point as one of the expressions in the select list. You cannot have this expression in the select list unless the WHERE clause includes the spatial condition.
The other way to query the table is with more "normal" WHERE clauses, like "WHERE name LIKE '%'||:nameParm||'%'", probably created as ViewCriteria. Distance is meaningless for this sort of query.
Version one of the application solved this by having a single VO, and methods that reset the query as needed. But this had passivation/activation problems - when activated, the query would reset to the original query, but there might be bind variables left over from the other query. Solved it by not changing the query until just before it was executed. I'm not happy with this solution - it seems fragile to me.
I could have two View Objects each with one of the queries. I envision a user interface where the user can choose which way to query the table, and some logic would have to decide which bind variables to obtain and which VO to execute. But I'd like the results from either to appear in the same ADF Faces table component. The rest of the select list is the same and would have all the same labels, etc. in the UI. I don't mind if the VO for which Distance is meaningless has a Distance attribute that is always null - I would simply set that column to not display if not appropriate.
Possibilities: Subclass the two VOs from a third VO with a very basic version of the query, and use the parent VO in the ADF Faces table component? Or can I make the value attribute of the table dynamic - select the right VO at run time?

Okay... no answer to this one, so I kept working on my own answer.
Here's what I did:
I created a VO with a very basic query that has all WHERE criteria that are common to all queries. That includes three bind variables. Call this one "BaseVO".
I used TO_NUMBER(NULL) for the distance column that is only meaningful when you are doing a Spatial query.
I created all of my View Links to this VO. I also did all of my UI defaults against this VO.
Then I created two VO's that extend BaseVO. Each has the same attributes as the original, but one (call it NonSpatialVO) has View Criteria that encapsulate the non-spatial ways to query the table.
The other VO, SpatialVO, has a different query, but it has the same select list, so it still maps to the same attributes. It has a where clause for searching by latitude and longitude, so these are bind variables. And the spatial function for the distance from the starting point replaces TO_NUMBER(NULL) in the query.
So far, so good - the UI and View Links apply to NonSpatialVO and SpatialVO, even though they were only defined in BaseVO. It all works as expected when I run the Application Module.
Next step - on to using the VOs in some pages in the ViewController project.
It's going to have to decide dynamically which VO needs to be instantiated and executed, and then display the results in a table - the same table no matter which VO was used. I imagine that I'll use BaseVO to drag and drop the table on the page, but use EL to associated the correct VO with the "value" property.
If anyone has done something like this before - your comments and advice are welcome.

Can reuse one view object?

Hi All,
My server environment is JDeveloper 10.1.32 and JHeadstart 10.1.3.1.
I use one view In two Dynamic Domain(A、B) of "Application Definition Editor/Domains".
The Data Collection of Dynamic Domain(A、B) are using the same view object (v1).
The v1 use a bind parameters , it's name is p_CodeType .
a item choose A Domain.
b item choose B Domain.
a、b item's "Display Type" choose "DropDownList".
A Domain has query bind parameters and it's value is p_CodeType=02 .
B Domain has query bind parameters and it's value is p_CodeType=04 .
Run,
Two item's value of DropDownList are the same. a's DropDownList the same as b'DropDownList (p_CodeType=04).
Can reuse one view on two different Domains?
Thanks,
syuan
Message was edited by:
user581971

You can use the same ViewObject, but you need to create two separate view object usages in the application module for each domain.
Steven Davelaar,
JHeadstart Team.

2 Model projects in one ADF Application?

Hello,
I want to create an ADF application that connects to 2 databases. For both databses I create a seperate Model project. But when I drop a Data Control from the 2nd Model Project on the jsp I get an exception:
oracle.jbo.ConfigException: JBO-33005: Configuration Model2ServiceLocal is not found.
When I t
Do I need to configure something extra to get this working or is this not possible?
Joost

Instead of creating two separate Model project you can create two application module in a model project.
Steps:
1. Create EO VO AM for the first connection.
2. Open Model.jpx and create another db connection. Then create EO VO AM etc for the second connection.
Hope this solves your problem
~Abhijit

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

ADF BC: range paging on dynamic view object

hi!
i have a dynamically generated sql query and i want to get the results one page at a time. for this to work i create at runtime a view object and try to use range paging:
String sql = "SELECT ...";
ViewObject vo = appModule.createViewObjectFromQueryStmt("tmpVO"+System.currentTimeMillis(), sql);
vo.setRangeSize(pageSize);
vo.setAccessMode(RowSet.RANGE_PAGING);
vo.scrollToRangePage(pageNo);
vo.getEstimatedRowCount();
Row[] rows = vo.getAllRowsInRange();
vo.remove();
but when i run this it was pretty slow. so i traced the database session and saw that the executed query was the sql string, not the range paging select (SELECT * FROM (SELECT /*+ FIRST_ROWS */ IQ.*, ROWNUM AS Z_R_N FROM (...).
i use range paging on other view objects that are not dynamically generated and it works fine. please tell me what can i do to get only the specified page from the data base.
thank you
Edited:
here is the select i run:
SELECT UnitEO.UNIT_TYPE, UnitEO.UNIT_NR,
UnitTypeEO.USER_UNIT_TYPE,
UnitEO.UNIT_NR UNIT_NUMBER,
UnitEO.NUMBER_PLATE_ID,
AreaEO.AREA_NAME,
UnitEO.SERIAL_NR
FROM NW_UNIT UnitEO,
NW_UNIT_DETAILS NwUnitDetailsEO,
NW_UNIT_TYPE UnitTypeEO,
NW_AREA AreaEO,
NW_COMMUNICATION_COMPUTER ComputerEO
WHERE
UnitEO.deleted IS NULL
AND UnitEO.UNIT_NR = NwUnitDetailsEO.UNIT_NR (+)
AND UnitEO.UNIT_TYPE = NwUnitDetailsEO.UNIT_TYPE (+)
AND UnitEO.UNIT_TYPE = UnitTypeEO.UNIT_TYPE
AND UnitEO.AREA_ID = AreaEO.AREA_ID (+)
AND UnitEO.COMPUTER_ID = ComputerEO.COMPUTER_ID (+)
here is the jbo.debugoutput that was generated; it includes the creation of the app module, the execution of SearchEntityPkVO (a predefined vo, not paged), then the execution of the code above:
08/07/22 13:56:52 [436] Connected to Oracle JBO Server - Version: 10.1.3.36.73
08/07/22 13:56:52 [437] mPCollUsePMgr is false
08/07/22 13:56:52 [438] ViewObjectImpl.mDefaultMaxRowsPerNode is 70
08/07/22 13:56:52 [439] ViewObjectImpl.mDefaultMaxActiveNodes is 30
08/07/22 13:56:52 [440] Created root application module: 'enermet.aim.search.model.SearchAppModule'
08/07/22 13:56:52 [441] Locale is: 'en_US'
08/07/22 13:56:52 [442] ApplicationPoolImpl.resourceStateChanged wasn't release related. No notify invoked.
08/07/22 13:56:52 [443] Oracle SQLBuilder: Registered driver: oracle.jdbc.driver.OracleDriver
08/07/22 13:56:52 [444] Creating a new pool resource
08/07/22 13:56:52 [445] Trying connection/2: url='jdbc:oracle:thin:@AIMTEST:1521:AIM' ...
08/07/22 13:56:53 [446] Successfully logged in
08/07/22 13:56:53 [447] JDBCDriverVersion: 10.1.0.5.0
08/07/22 13:56:53 [448] DatabaseProductName: Oracle
08/07/22 13:56:53 [449] DatabaseProductVersion: Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production With the Partitioning, OLAP and Data Mining options
08/07/22 13:56:53 [450] <AM MomVer="0">
<cd/>
<CONN/>
</AM>
08/07/22 14:00:21 [985] SearchEntityPkVO>#q old SQLStmtBufLen: 234, actual=163, storing=223
08/07/22 14:00:21 [986] select sep.pk_name, sep.position
from MD_SEARCH_ENTITY_PK sep
inner join MD_SEARCH_ENTITIES se
on se.entity_id = sep.entity_id
where se.name = :VarEntityName
08/07/22 14:00:21 [987] ViewObject: SearchEntityPkVO Estimated Row Count Query Statement:
08/07/22 14:00:21 [988] "SELECT count(1) FROM (select sep.pk_name, sep.position
from MD_SEARCH_ENTITY_PK sep
inner join MD_SEARCH_ENTITIES se
on se.entity_id = sep.entity_id
where se.name = :VarEntityName) "
08/07/22 14:00:21 [989] Bind params for ViewObject.getQueryHitCount: SearchEntityPkVO
08/07/22 14:00:21 [990] Binding param "VarEntityName": Unit
08/07/22 14:00:21 [991] ViewObject: SearchEntityPkVO Estimated Row Count: 2
08/07/22 14:00:21 [992] Clear QueryCollection in cache for VO tmpVO1216724421562
08/07/22 14:00:21 [993] ViewObject: tmpVO1216724421562 close prepared statements...
08/07/22 14:00:21 [994] tmpVO1216724421562>#q computed SQLStmtBufLen: 641, actual=601, storing=631
08/07/22 14:00:21 [995] SELECT UnitEO.UNIT_TYPE, UnitEO.UNIT_NR,
UnitTypeEO.USER_UNIT_TYPE,
UnitEO.UNIT_NR UNIT_NUMBER,
UnitEO.NUMBER_PLATE_ID,
AreaEO.AREA_NAME,
UnitEO.SERIAL_NR
FROM NW_UNIT UnitEO,
NW_UNIT_DETAILS NwUnitDetailsEO,
NW_UNIT_TYPE UnitTypeEO,
NW_AREA AreaEO,
NW_COMMUNICATION_COMPUTER ComputerEO
WHERE
UnitEO.deleted IS NULL
AND UnitEO.UNIT_NR = NwUnitDetailsEO.UNIT_NR (+)
AND UnitEO.UNIT_TYPE = NwUnitDetailsEO.UNIT_TYPE (+)
AND UnitEO.UNIT_TYPE = UnitTypeEO.UNIT_TYPE
AND UnitEO.AREA_ID = AreaEO.AREA_ID (+)
AND UnitEO.COMPUTER_ID = ComputerEO.COMPUTER_ID (+)
08/07/22 14:00:21 [996] *** createViewAttributeDefImpls: oracle.jdbc.driver.T4CPreparedStatement@4e6
08/07/22 14:00:21 [997] Bind params for ViewObject: tmpVO1216724421562
08/07/22 14:00:21 [998] Clear QueryCollection in cache for VO tmpVO1216724421562
08/07/22 14:00:21 [999] ViewObject: tmpVO1216724421562 close prepared statements...
08/07/22 14:00:21 [1000] Column count: 7
08/07/22 14:00:21 [1001] tmpVO1216724421562>#q computed SQLStmtBufLen: 641, actual=601, storing=661
08/07/22 14:00:21 [1002] SELECT UnitEO.UNIT_TYPE, UnitEO.UNIT_NR,
UnitTypeEO.USER_UNIT_TYPE,
UnitEO.UNIT_NR UNIT_NUMBER,
UnitEO.NUMBER_PLATE_ID,
AreaEO.AREA_NAME,
UnitEO.SERIAL_NR
FROM NW_UNIT UnitEO,
NW_UNIT_DETAILS NwUnitDetailsEO,
NW_UNIT_TYPE UnitTypeEO,
NW_AREA AreaEO,
NW_COMMUNICATION_COMPUTER ComputerEO
WHERE
UnitEO.deleted IS NULL
AND UnitEO.UNIT_NR = NwUnitDetailsEO.UNIT_NR (+)
AND UnitEO.UNIT_TYPE = NwUnitDetailsEO.UNIT_TYPE (+)
AND UnitEO.UNIT_TYPE = UnitTypeEO.UNIT_TYPE
AND UnitEO.AREA_ID = AreaEO.AREA_ID (+)
AND UnitEO.COMPUTER_ID = ComputerEO.COMPUTER_ID (+)
08/07/22 14:00:21 [1003] ViewObject: tmpVO1216724421562 Estimated Row Count Query Statement:
08/07/22 14:00:21 [1004] "SELECT count(1) FROM (SELECT UnitEO.UNIT_TYPE, UnitEO.UNIT_NR,
UnitTypeEO.USER_UNIT_TYPE,
UnitEO.UNIT_NR UNIT_NUMBER,
UnitEO.NUMBER_PLATE_ID,
AreaEO.AREA_NAME,
UnitEO.SERIAL_NR
FROM NW_UNIT UnitEO,
NW_UNIT_DETAILS NwUnitDetailsEO,
NW_UNIT_TYPE UnitTypeEO,
NW_AREA AreaEO,
NW_COMMUNICATION_COMPUTER ComputerEO
WHERE
UnitEO.deleted IS NULL
AND UnitEO.UNIT_NR = NwUnitDetailsEO.UNIT_NR (+)
AND UnitEO.UNIT_TYPE = NwUnitDetailsEO.UNIT_TYPE (+)
AND UnitEO.UNIT_TYPE = UnitTypeEO.UNIT_TYPE
AND UnitEO.AREA_ID = AreaEO.AREA_ID (+)
AND UnitEO.COMPUTER_ID = ComputerEO.COMPUTER_ID (+)
08/07/22 14:00:21 [1005] Bind params for ViewObject.getQueryHitCount: tmpVO1216724421562
08/07/22 14:00:26 [1006] ViewObject: tmpVO1216724421562 Estimated Row Count: 32732
08/07/22 14:00:26 [1007] Column count: 7
08/07/22 14:00:26 [1008] ViewObject: tmpVO1216724421562 Created new QUERY statement
08/07/22 14:00:26 [1009] tmpVO1216724421562>#q old SQLStmtBufLen: 661, actual=601, storing=631
08/07/22 14:00:26 [1010] SELECT * FROM (SELECT /*+ FIRST_ROWS */ IQ.*, ROWNUM AS Z_R_N FROM (SELECT UnitEO.UNIT_TYPE, UnitEO.UNIT_NR,
UnitTypeEO.USER_UNIT_TYPE,
UnitEO.UNIT_NR UNIT_NUMBER,
UnitEO.NUMBER_PLATE_ID,
AreaEO.AREA_NAME,
UnitEO.SERIAL_NR
FROM NW_UNIT UnitEO,
NW_UNIT_DETAILS NwUnitDetailsEO,
NW_UNIT_TYPE UnitTypeEO,
NW_AREA AreaEO,
NW_COMMUNICATION_COMPUTER ComputerEO
WHERE
UnitEO.deleted IS NULL
AND UnitEO.UNIT_NR = NwUnitDetailsEO.UNIT_NR (+)
AND UnitEO.UNIT_TYPE = NwUnitDetailsEO.UNIT_TYPE (+)
AND UnitEO.UNIT_TYPE = UnitTypeEO.UNIT_TYPE
AND UnitEO.AREA_ID = AreaEO.AREA_ID (+)
AND UnitEO.COMPUTER_ID = ComputerEO.COMPUTER_ID (+)
) IQ WHERE ROWNUM < :0) WHERE Z_R_N > :1
08/07/22 14:00:26 [1011] Bind params for ViewObject: tmpVO1216724421562
08/07/22 14:00:26 [1012] setting rownum query between (0, 23)
08/07/22 14:00:26 [1013] ViewObject: tmpVO1216724421562 close prepared statements...
PS: I am using JDev 10.1.3.36.73

You have a couple of choices. You could create one view object with a bind variable parameter(s) and in the application module you have 10 instances of that VO with appropriate values set for the bind variable in each instance.
Or if you are using the LOV feature of a VO then you can set an attribute to point to one VO and then using a view cirteria applied to that specific LOV you can then "filter" the data that would appear in that LOV.
Does that help?
Grant Ronald

New View Object not found

Using the scott schema, in my test workspace I created a BC4J project that had 4 tables/view objects using the wizards and taking all the defaults. I created a UIX-JSP project using those view objects.
Next I created a new table in the database (LoginMaster). I went back to the BC4J project added the entity object (LoginMaster) and allowed the wizard to build the default view object (LoginMasterView) into package1. Then I opened the properties on the AM (ScottModule)to put the new view object in the Data Model property. I tested the ScotMOdule AM and the view object is there and is accessable.
I build a jsp page (using the starter form wizard in UIX-JSP category). I then striped out ALL of the default code and cut-n-pasted ALL of the code from another query form that was built by the "Business Components JSP Application" wizard of the UIX-JSP category. I changed the data source name from "EmpView" to "LoginMasterView" and when I run the application I'm told:
Error Message: Could not locate View Object LoginMasterView in application Package1Module.
oracle.jbo.JboException: Could not locate View Object LoginMasterView in application Package1Module.
As I said, the VO LoginMasterView is in package1. I also verified it is coded in package1.xml andd scottmodule.xml, I suspect it was put here by setting the AM properties.
So what did I leave out or do wrong?
TIA,
Ed.

Edit your package1Module application module and verify that the name of the viewobject in the selected DataModel tree is the same as the name you're providing in your JSP page.
I belive by default a number suffix is added to the VO names in the APpModule datapanel. Basically only VO usages that are included in the application module data-model are "findable" by default using the findViewObject methods. Yes it is the correct name in the DataModel Tree.
Your response got me thinking. What files contain the text LoginMasterView? Well, all the files that conatin that text contain exactly that text. I was told package1.xml in the src directory of my BC4J objects project contained the text (which it did). But then I opened the files Package1Module.xml and Package1ModuleImpl.java and noticed they DID NOT conatin that text (even though it seems they should) so I added it to both of these files. But even after I built the BC4J objects project I noticed that the Package1ModuleImpl.class file is not recompiled (still dated July 4, 2002).
So now I have two new questions:
1. How come Package1Module.xml and Package1ModuleImpl.java did not get updated? What updates them?
2. Once Package1ModuleImpl.java is manually updated and the [roject is built why is Package1ModuleImpl.class not recompiled?
TIA,
Ed.

BC Archive - problem with opening view object based on entity from archive

We have encountered a weird problem with a reusable BC library on different PCs.
Library was imported into a project following steps in section 25.7 of the ADF guide.
A view object was created using some of the entities from the library.
Model tested successfully with view object (using AppModule tester).
Page developed with no problems.
Application copied to a different PC.
BC JAR files set up in lib folder and removed/readded to application model project. When attempting to open view object, get the error below.
However, the View object still tests successfully using the AppModule tester.
The page using the View object still runs successfully.
I believe the problem is that when the archive was originally imported, it was imported from a different location. The Containees tag in the project .jpx file references that path name. But even when I edited the path name, I still could not open the view object. Do we have to remove and redo the import of the library each time the application is copied to a different machine?
Error when attempting to edit View Object:
oracle.jbo.dt.objects.JboException: The following object(s) referred to objects that could not be found:
com.guideworkstv.ibo.webstagemodel.AcctReqForReviewViewObj
com.guideworkstv.ibo.webstagemodel.AcctReqForReviewViewObj
Could not find the following referenced object(s):
com.guideworkstv.ibo.model.webstage.entities.IboAccountRequest
com.guideworkstv.ibo.model.webstage.entities.IboAccountRequest
     at oracle.jbo.dt.objects.JboException.throwException(JboException.java:81)
     at oracle.jbo.dt.objects.JboPackage.loadResolveReferencesXML(JboPackage.java:1397)
     at oracle.jbo.dt.objects.JboPackage.finishObjectsLoad(JboPackage.java:1042)
     at oracle.jbo.dt.objects.JboPackage.loadFromXMLFile(JboPackage.java:972)
     at oracle.jbo.dt.objects.JboPackage.loadFromXMLFile(JboPackage.java:951)
     at oracle.jbo.dt.objects.JboBaseObject.loadFromXMLFile(JboBaseObject.java:2615)
     at oracle.jbo.dt.objects.JboPackage.loadFromXMLFile(JboPackage.java:880)
     at oracle.jbo.dt.objects.JboPackage.checkForLoad(JboPackage.java:451)
     at oracle.jbo.dt.objects.JboPackage.findContainedObjectByName(JboPackage.java:440)
     at oracle.jbo.dt.objects.JboPackage.findObjectByName(JboPackage.java:1999)
     at oracle.jbo.dt.objects.JboApplication.findObjectByName(JboApplication.java:959)
     at oracle.jbo.dt.objects.JboUtil.fileURLToObject(JboUtil.java:510)
     at oracle.jbo.dt.jdevx.ui.JdxJboAddin$1.handleCopy(JdxJboAddin.java:997)
     at oracle.jdeveloper.compiler.CopyTranslator.handledByListeners(CopyTranslator.java:125)
     at oracle.jdeveloper.compiler.CopyTranslator.translate(CopyTranslator.java:263)
     at oracle.jdeveloper.compiler.UnifiedBuildSystem$CompileThread.buildGraph(UnifiedBuildSystem.java:300)
     at oracle.jdeveloper.compiler.UnifiedBuildSystem$CompileThread.buildProjectFiles(UnifiedBuildSystem.java:516)
     at oracle.jdeveloper.compiler.UnifiedBuildSystem$CompileThread.buildProject(UnifiedBuildSystem.java:609)
     at oracle.jdeveloper.compiler.UnifiedBuildSystem$CompileThread.buildAll(UnifiedBuildSystem.java:666)
     at oracle.jdeveloper.compiler.UnifiedBuildSystem$CompileThread.run(UnifiedBuildSystem.java:894)

We have resolved this problem by making sure that all machines have identical paths for both the working and the lib directories. It would be nice not to have to do this though.

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.

ADF BC View Objects: Disappearing where clauses

Playing around with the 11g Technical Preview I find out that sometimes the where clauses - added to View Objects by means of the new "Join Type" field in the VO-editor UI - disappear.
I'm not able to reproduce exactly and "on demand", but it seems to happen when the sources of more than one View Object are open simultaneously and/or the XML definition of a View Object is edited directly on the Source-tab.

Today I succeeded in reproducing:
Two tables:
TAB_MASTER:
ID NUMBER NOT NULL
DESCRIPTION VARCHAR2 NOT NULL
TAB_DETAIL:
ID NUMBER NOT NULL
MASTER_ID NUMBER NOT NULL
DESCRIPTION VARCHAR2 NOT NULL
TAB_DETAIL.MASTER_ID is a foreign key referencing TAB_MASTER.ID.
Steps to reproduce:
1. Generate default ADF BC objects from database tables.
2. Open definition of TAB_DETAIL View Object.
3. Go to the Entity Objects tab
4. Add TAB_MASTER Entity Object to the Selected Entities Objects. Association and Join Type are filled in automatically.
5. Go to the Query tab and go to SQL tab in de Property Inspector. Where clause is filled.
6. Go to the Attributes tab and click Add from Entity...
7. Add TAB_MASTER.DESCRIPTION attribute.
8. Again, go to the Query tab and go to SQL tab in de Property Inspector. Where clause is still filled.
9. Go to the Attributes tab and select MASTER_ID attribute.
10. Click icon to add List Of Values
11. In List Of Values dialog add View Object TAB_MASTER and add the correct pairs of List Return Values for the ID and (MASTER) DESCRIPTION attributes.
12. After completing the List Of Values dialog go to the Query tab -> SQL tab again. The where clause added to join the Entity Objects (see step 5.) is cleared, resulting in a wrong SQL statement for the View Object.

View object reexecutes when any event is fired on a page

Hi All,
I have following requirement
Create a page which containts a table.
Table has 2 fields one is Employee number LOV and second is emp name field which is read only.
One view object is associated with this table.
This view object has two transient attributes one is EmpId which is of type number and second is name which is of type string.
View object does not have any query.
when you enter any no in lov field,it goes to lov region and populates the respective emplyee details in the LOV region, when user selects any employee,it comes back to main page and shows Employee no and emp name in first row of a table.
I have allowed the user to enter as many rows as he wants into the table.
for that i have created Add another row button using footer property of table.
but the problem is When i click Add another row button,row is added it to table but emp name which i have selected from LOV had lost.
i know the reason is when i click Add another row button VO executes query again and my value has lost.
i want to know that is there any way to prevent reexecution of view object query?
Regards
Hitesh

Hitesh,
Mukul, i can put my own Add another row button and do cusom code,but what about other events?
Yes, see dev guide and old threads. It has been explained in dev guide claerly and have also replied this in old threads.--Mukul

How-to synchronize edit forms for a single View Object tree node entrie

Hi all,
I created a tree from a single View Object,
follow this [http://www.oracle.com/technetwork/developer-tools/adf/learnmore/32-tree-table-from-single-vo-169174.pdf]
then i want to create and synchronize edit forms for tree node entries,
follow this [http://www.oracle.com/technetwork/developer-tools/adf/learnmore/50-synchromize-form-treeselection-169192.pdf]
but it not working when i click child node!!
i found the latter tree from many View Object ,but the former tree from single View Object.
what should i do?
Thanks in advance

Hi,
say the tree is built from ViewObject1. In the AM model, create a second View Object instance for this. Say ViewObject2. Create the form from ViewObject2 and the tree from ViewObject1. When creating the tree, use the"Target Data Source" option at the bottom to reference the iterator of ViewObject2. Then create a PartialTrigger on the paneFormLayout that holds the synch form. In the partial trigger property, reference the tree so that when the tree selection changes, the form is updated. Then create a PartialTrigger property on the tree and point it to the submit button of the form so you can show updated values in the tree.
Frank

How to use SPEL for Dynamic View Objects?

Hi Gurus,
In Benefits Self Service particularly in the Designate Beneficiaries page, we have a requirement to set the row for Self designation as Read Only. What this means for any plan that you're eligible and that requires beneficiary designation, you are not allowed to designate yourself. Unfortunately this is an intended functionality and the only way to achieve our requirement is thru Personalization. I was able to accomplish this successfuly thru the SPEL functionality. However the view object corresponding to each plan that requires beneficiary designation is somewhat dynamic. For example, Plan A corresponds to BeneficiaryPeopleVO1, Plan B corresponds to BeneficiaryPeopleVO2, Plan C corresponds to BeneficiaryPeopleVO3, etc. The Personalization Page only allows me to use the SPEL for only one view object at a time. So if an employee is eligible for 3 plans that require beneficiary designation and my SPEL points to BeneficiaryPeopleVO1, it will only set the Read Only in Plan A. Plan B and Plan C would still allow self designation. Is there a way I could use the SPEL to work for all View Objects?
Thanks,
Ronaldo

jeanluca wrote:
I've seen things like this in scripting languages, so I was wondering if things like this are possible in java. Here is an not working example:
Is something like this possible ?AFAIK, it is only possible in a very limited way as noted above and is nearly always not recommended and definitely not necessary. The variable name has little importance, but OTOH the object reference has great importance. Instead learn about arrays, Lists, and Maps.

Programmatic View Object

I'm trying to create a programmatic view object from an Oracle Stored procedure that returns a single row containing Oracle Object Types. I created a Domain for my Oracle Object type called BillingInfo. Here is the code for my view object so far:
package billing;
import billing.common.BillingInfo;
import java.lang.Integer;
import java.math.BigDecimal;
import java.sql.CallableStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.sql.Types;
import java.util.Date;
import java.text.SimpleDateFormat;
import oracle.jbo.JboException;
import oracle.jbo.server.DBTransaction;
import oracle.jbo.server.ViewObjectImpl;
import oracle.jbo.server.ViewRowImpl;
import oracle.jbo.server.ViewRowSetImpl;
import oracle.jdbc.driver.OracleCallableStatement;
import oracle.jdbc.driver.OracleTypes;
// --- File generated by Oracle Business Components for Java.
public class BillingInfoViewImpl extends ViewObjectImpl
// billing info procedure call variables
private final static int BILLING_LOGGED_ON_USER_ID = 0;
private final static int BILLING_BILL_TO_USER_ID = 1;
private final static int BILLING_TRANSACTION_DATE = 2;
private final static int BILLING_TRANSACTION_DETAILS1 = 3;
private final static int BILLING_TRANSACTION_DETAILS2 = 4;
private final static int BILLING_TRANSACTION_DETAILS3 = 5;
private final static int BILLING_TRANSACTION_DETAILS4 = 6;
private final static int BILLING_TRANSACTION_DETAILS5 = 7;
private final static int BILLING_TRANSACTION_COUNT = 8;
private final static int BILLING_TOTAL_CHARGE_AMOUNT = 9;
private final static int BILLING_PAY_TYPE = 10;
private final static int BILLING_ERROR_MESSAGE = 11;
private final static int BILLING_ERROR_CODE = 12;
private final static int BILLING_RETURN_VALUE = 13; /*
* This is the PLSQL block that we will execute
private static final String SQL =
"begin ecs_jdbc_wrappers.get_billing_info_jdbc(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? ,?, ?, ?);end;";
* This is the default constructor (do not remove)
public BillingInfoViewImpl() { }
* Overridden framework method.
* Executed when the framework needs to issue the database query for
* the query collection based on this view object. One view object
* can produce many related result sets, each potentially the result
* of different bind variable values. If the rowset in query is involved
* in a framework-coordinated master/detail viewlink, then the params array
* will contain one or more framework-supplied bind parameters. If there
* are any user-supplied bind parameter values, they will PRECEED the
* framework-supplied bind variable values in the params array, and the
* number of user parameters will be indicated by the value of the
* numUserParams argument.
protected void executeQueryForCollection(Object qc,Object[] params,int numUserParams) {
* If there are where-clause params they will be in the 'params' array.
* NOTE: Due to Bug#2828248 I have to cast to BigDecimal for now,
* ---- but this parameter value should be oracle.jbo.domain.Number type.
int sqlcode = 0; // statement sql code
String errorMessage = null; // statement error message
String loggedOnUserId = null; // IN VARCHAR2
String billToUserId = null; // IN VARCHAR2
Date transactionDate = new Date(); // IN DATE
BillingInfo transactionDetails1 = null; // IN OUT billing_info
BillingInfo transactionDetails2 = null;
BillingInfo transactionDetails3 = null;
BillingInfo transactionDetails4 = null;
BillingInfo transactionDetails5 = null;
int transDetailsCount = 0; // IN INTEGER
String payType = null; // IN VARCHAR2
if (params != null)
loggedOnUserId = (String)params[BILLING_LOGGED_ON_USER_ID];
System.out.println("USER ID:" + loggedOnUserId);
billToUserId = (String)params[BILLING_BILL_TO_USER_ID];
System.out.println("BILLED USER ID:" + billToUserId);
if (params[BILLING_TRANSACTION_DETAILS1] != null) {
System.out.println(params[BILLING_TRANSACTION_DETAILS1]);
transactionDetails1 = (BillingInfo)params[BILLING_TRANSACTION_DETAILS1];
transDetailsCount = transDetailsCount + 1;
if (params[BILLING_TRANSACTION_DETAILS2] != null) {
transactionDetails2 = (BillingInfo)params[BILLING_TRANSACTION_DETAILS2];
transDetailsCount = transDetailsCount + 1;
if (params[BILLING_TRANSACTION_DETAILS3] != null) {
transactionDetails3 = (BillingInfo)params[BILLING_TRANSACTION_DETAILS3];
transDetailsCount = transDetailsCount + 1;
if (params[BILLING_TRANSACTION_DETAILS4] != null) {
transactionDetails4 = (BillingInfo)params[BILLING_TRANSACTION_DETAILS4];
transDetailsCount = transDetailsCount + 1;
if (params[BILLING_TRANSACTION_DETAILS5] != null) {
transactionDetails5 = (BillingInfo)params[BILLING_TRANSACTION_DETAILS5];
transDetailsCount = transDetailsCount + 1;
payType = (String)params[BILLING_PAY_TYPE];
CallableStatement st = null;
try {
st = getDBTransaction().createCallableStatement(SQL,DBTransaction.DEFAULT);
* Set the value of the bind variables
st.setString(1, loggedOnUserId);
st.setString(2, billToUserId);
// Set Transaction Date to todays date
java.sql.Timestamp sqlTs = new java.sql.Timestamp(transactionDate.getTime());
st.setTimestamp(3, sqlTs);
System.out.println("TRANS DATE:" + sqlTs);
st.setObject(4, transactionDetails1);
if (transactionDetails2 == null) st.setNull(5, Types.STRUCT, "BILLING_INFO");
else st.setObject(5, transactionDetails1);
if (transactionDetails3 == null) st.setNull(6, Types.STRUCT, "BILLING_INFO");
else st.setObject(6, transactionDetails1);
if (transactionDetails4 == null) st.setNull(7, Types.STRUCT, "BILLING_INFO");
else st.setObject(7, transactionDetails1);
if (transactionDetails5 == null) st.setNull(8, Types.STRUCT, "BILLING_INFO");
else st.setObject(8, transactionDetails1);
st.setInt(9, transDetailsCount);
st.setString(11,payType);
* Register OUT paramters
st.registerOutParameter(4, Types.STRUCT, "BILLING_INFO");
st.registerOutParameter(5, Types.STRUCT, "BILLING_INFO");
st.registerOutParameter(6, Types.STRUCT, "BILLING_INFO");
st.registerOutParameter(7, Types.STRUCT, "BILLING_INFO");
st.registerOutParameter(8, Types.STRUCT, "BILLING_INFO");
st.registerOutParameter(10, Types.DOUBLE);
st.registerOutParameter(12, Types.VARCHAR);
st.registerOutParameter(13, Types.INTEGER);
st.registerOutParameter(14, Types.INTEGER);
// execute the stored procedure
st.execute();
// get the SQLCODE
sqlcode = st.getInt(13);
System.out.println("sqlcode returned:" + sqlcode);
errorMessage = st.getString(12);
System.out.println("Error Message:" + errorMessage);
catch (SQLException s) {
System.out.println("sqlcode returned:" + sqlcode);
System.out.println("Error Message:" + errorMessage);
throw new JboException(s);
finally {try {st.close();} catch (SQLException s) {}}
super.executeQueryForCollection(qc, params, numUserParams);
This almost works except when I try to print out the attributes I get an error. I beleive I have to override some of the view object framework methods. If so, how do I go about this? Is it the same methods overridden in this example Getting a View Object's Result Rows from a REF CURSOR? http://radio.weblogs.com/0118231/stories/2003/03/03/gettingAViewObjectsResultRowsFromARefCursor.html
Nat

Yes. only difference is that your VO will just have one row in it.

Connecting ADF BC view object w/ param to a JSF Table?

I'm brand new to JDev so this is probably an easy one, I'm still trying to grasp some of the concepts: I have created an application module that has one view object containing a simple parameterized query (page is a simple search form - user enters keywords - I pass keywords to database and return results.) This Data Control shows up in the Data Control Palette and I am able to associate this with a table on the JSF page. Where I'm struggling is how / where do I tell JDev to bind the query parameter? In the examples from the help files, they show in the Data Control Palette a method with parameters. My Data Control Panel just shows the application module labeled as a Data Control with no parameters? In the Application Module (where I have defined the parameterized SQL stmt), in the Client Interface menu item, there are no methods available. Do I need to create the method even if I don't want to override the default functionality? Any help appreciated.
Also, many of the tutorial and examples look like they use the EJB/Toplink approach - are there good examples or tutorial for using ADF BC and ADF Faces?
Thanks. BTW - this product looks awesome so far! I was using myEclipse - this product is light years ahead.

This new 10.1.3-production JSF/ADFBC tutorial covers a lot of ground and includes an example of building the search page that you're trying to build, too :-)
http://otn.oracle.com/obe/obe1013jdev/masterdetail_adf_bc/master-detail_pagewith_adf_bc.htm
The trick is noticing that a View Object with named bind parameters includes an additional built-in operation in its "Operations" folder called ExecuteWithParams. Dropping this operation onto your page gives you the choice of creating a "Parameter Form" for your VO's bind variables. If you then drop the VO as a readonly table to the same page and run the page, you are done. :-)
Try to do that in Eclipse in two drag-drop operations! ;-)
It warms my heart to hear you say that about JDeveloper versus Eclipse... Really makes my day!

Multi Model project but one view object

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