Must view links dataTypes match ?

master.AttribXXX - String
Detail.AttribYYY - Date
if I edit the view link as follows i get an error can someone tell me why?
view link sql :
bindAttribXXX = to_char(AttribYYY, 'YY-MM');

I've had links to internal pages default to the top page or "one of my pages". I've had to redo them on occasion with the Hyperlink Inspector pointing the to the correct page.
I publish to MobileMe and have published the site to MMe, visited each page, copied the full ULR and used it for the hyperlink. Doing it that way has never slipped back to "one of my pages".
OT

Similar Messages

Bug in View Link editor

When creating a many-to-many view link based on a many-to-many association, the view object on the left must be based on the entity that was on the left when creating the association. Why is this? Surely it shouldn't matter.

Just to add to this:
If the view object on the left of the link is not based on the entity that was on the left when creating the underlying association then the accessors for the association will not be visible under the view in the link editor.

ADF: use of view link Accessor in Entity Object = always null?

Hi,
JClient 9.0.5.2, adf model.
I would like to use the view link accessor method in the master EO to retrieve detail EO values and the view link accessor method in the detail EO to retrieve master EO values.
Detail Rule:
In the detail EO an attribute is derived from an attribute of the master EO: detail attribute = master attribute.
Master Rule:
In the master EO an attribute is derived from the detail EO: master atribute set to 0 if detail EO exist else set to 0.
Tables:
Table Master => MasterEO => MasterVO
- masterPK (not updateable)
- masterField (not updateable)
- hasDetailsFlag
Table Detail => DetailEO => DetailVO
- detailPK (not updateable)
- masterPK => foreign key (not updateable)
- masterField (query only)
MasterDetailLink based on foreign key.
In link wizard I asked for the generation of following accessors in the source & destination Entity Objects:
In DetailEO accessor name: RetrieveFromMaster
In MasterEO accessor name: RetrieveFromDetail
In the DetailEO, I asked for the generation of the DetailEOImpl file, accessors and create method.
As wriiten in the file, before the create method:
** Add attribute defaulting logic in this method. **
I tought this is the place to retrieve the master attribute:
The code:
MasterVORowImpl masterVO = getRetrieveFromMaster();
if (masterVO == null)
System.out.println("MasterVORowImpl masterVO create NNNNNNNNNNNUUUUUUUULLLLLLLLLL");
The masterVO is always null?
I suppose I didn't understand something, my guest is that ViewObjects may not be used for default logic?
I know how to implement those rules in the database with triggers.
I think that the data I need for implementing those rules exist somewhere at the ADF level so retrieving the data from the db is not necessary?
Could somebody give some clues?
I didn't find a similar example in the Business Rules in BC4J document.
Your help will be appreciated
Frederic

Hi,
Detail Rule, copy attribute value form master.
In DetailEOImpl:
protected void create(AttributeList attributeList)
setAttribute(MASTERFIELD,this.getMaster().getMasterField());
super.create(attributeList);
Master rule, set flag to 0 if no details else set to 1.
In the MasterEOImpl added method to check if detail row exists based on Row Iterator => no db retrieval?
This method also sets the flag accordingly:
protected void checkHasOtherDetails()
oracle.jbo.RowIterator ri = this.getRetrieveFromdetail();
ri.last();
// last() must be called else hasNext() returns true even on last delete ???
Number hasDetails = Constants.NUMBER_NO; // = 1
if (ri.hasNext() || ri.hasPrevious())
hasDetails = Constants.NUMBER_YES; // = 0
if (!getHasDetailsFlag().equals(hasDetails)) {
this.setHasDetailsFlag(hasDetails);
I call this method in the remove method of the detailEOImpl:
public void remove()
this.getRetrieeFromMaster().checkHasOtherDetails();
super.remove();
To set the flag I added follwoing code in the create method of the DetailEOImpl:
protected void create(AttributeList attributeList)
setAttribute(MASTERFIELD,this.getMaster().getMasterField());
**** ADDED ***
Number masterHasDetailsFlag = getRetrieveFromMaster().getHasDetailsFlag();
if (!masterHasDetailsFlag.equals(Constants.NUMBER_YES)) {
getRetrieveFromMaster().setHasDetailsFlag(Constants.NUMBER_YES));
super.create(attributeList);
One more question:
Is there a danger of calling last() on row iterators in create/update/remove methods of *Impl files?
=> current row changed => any effect on display in JPanel
Thanks
Frederic
PS All variable/method/class names have been manually renamed in this code so some small syntax problems may exist.

Use View Object with Alternative Data Sources in View Link

In my case, I created a view object based on alternative data source (not with SQL query). I have setQuery(null) in the override create() function for this View Object. When I use this View Object at the destination end of the View Link, the setQuery(null) will raise Jbo-26016 exception (You cannot set customer query (calling setQuery()) on a view object if it is the detail view object in a master detail view link.) which does not allow me to do that. I looked Avrom's Framework for Database API-Based ADF BC, in which he override the DBTransaction and CallableStatement in order to intercept the default query clause set by the View Link. I'd like to see if there is any alternative ways to achieve my objective?

Just following up what I found so far. I'm trying to use customized View Object based on alternative data source at the destination end of View Link with ADF 10.1.3.
1. For the View Object at the destination end of View Link, I can not call setQuery() which will raise Jbo-26016 exception.
2. I can omit the setQuery(null) call in my customized ViewObjectImpl, and as long as there is no SQL statement in the View Definition XML, it won't cause problem when calling the executeQueryForCollection() of the super class.
3. The override executeQueryForCollection() must call the super.executeQueryForCollection() in order to get appropriate result (I tried to skip the call and it does not give back any results)
4. The funny thing is, when I make getQuery() call in my customized ViewObjectImpl (I'm just trying to double check if the Query object is clean or not), the query object is set to "SELECT FROM" following the getQuery() call, and which causes the exceptions when I call super.exeuteQueryForCollection(). I found out later from the Javadoc API which is implemented in that way.
So I guess my case is resolved by not making specific call to setQuery(null).

Looking for a 'view link target source' context menu item

I'm looking for a 'view link target source' context menu item.
I often open listings of servers' directories; they can include direct links to code files (*.py , *.pl, etc). When I click them directly, I'm asked to open them with an external editor which is not what I want to do; I want to view those files source inside of Firefox. I currently have to
# right-click those links,
# copy link location,
# type "view-source:" in the Location bar,
# paste the copied URL,
# click Go.
This gets time-consuming with the large amount of URLs I need to open.
It's not a native feature for Firefox and a search at [http://addons.mozilla.org AMO] didn't come up with anything useful, for me at least.

Hello,
particularly, I performed the following steps:
1. I created a SC in the local repository, which matches the SC of the track.
2. I moved the exisiting DCs to the SC created in step 1.
3. Now, I created new DCs in the SC in the track.
4. I deleted all .project files from the local DCs.
5. I copied all source files from the local DCs to the new track DCs.
6. I checked-in these changes to the track.
Kind regards
Alexander

How to extend VO's which is EO based and also having View links..

Hi All,
we have a requirement iProcurement page, where we need to restrict the reqisition lines( if the requisition line has destination_type_code is 'INVENTORY' then i need not to display this line..
so i try to extend the VO(PoRequisitionLinesVo),by adding the where condition "porequisitionlineeo.DESTINATION_TYPE_CODE <> 'INVENTORY' ". and i am geting below error:
## Detail 0 ##
oracle.apps.fnd.framework.OAException: oracle.jbo.InvalidParamException: JBO-25006: Invalid parameter value PoRequisitionLinesVO for destination passed to method ViewLinkImpl.setDestination. Explanation: view def mismatch
at oracle.apps.fnd.framework.OAException.wrapperInvocationTargetException(OAException.java:996)
And this VO has view link(PoRequisitionLinesVL).
I think If i import the view object without importing the associated view object and viewlinks, than the imported view object does not have the link. I think this could be the possible cause of the issue..
can any one pls help me....

Hi ,
if VO extension is done propery then exrension itself take care related view links , in your specific case , i dont think you need to go VO extension to set where clause , you set this where clause through controller extension .
OAApplicationModule oaam = pageContext.getApplicationModule(webBean);
OAViewObject voname= (OAViewObject)oaam.findViewObject("VO");
String where = "DESTINATION_TYPE_CODE ='INVENTORY' ";
voname.setWhereClause(where);
voname.executeQuery();
only condition is you must have DESTINATION_TYPE_CODE in select statement of standard view object
Thanks
Pratap

View link accessor for master view object with bind variables

Is there a way to set bind variables for a view object to which a view link accessor is used to retrieve a view row from a detail view row in a master-detail relationship ?
I understand that RowSet (or Row) returned by a view link accessor originates from an "internally created" view object instance.
I am using 10.1.3.0.4 JDeveloper.

Thanks! that's right the bind variables when i use it on where clause must be required, so i change my sql to:
Select /*+ use_nl(p p2) */
'F' tipo_persona,
p.ID_PERSONA, p.TDOC, p.NDOC, p.DENO
From SINT_PERSONA p,
( Select /*+ index(a SINT_PERSONA_IX2) */
a.ID_PERSONA
From SINT_PERSONA_DOCUMENTO a
where ( NDOC = :p_cuit
and :p_cuit <> 0 )
) p2
Where p.id_persona = p2.id_persona
AND (deno = decode(:p_deno,'null',null,upper(:p_deno)) or
:p_deno = 'null')
AND (NDOC = decode(:p_ndoc,0,null,:p_ndoc) or
:p_ndoc = 0)
and grado_confiab > 0
and my bind variables:
p_ndoc required default value 0
p_cuit required default value 0
p_deno required default value null
and works ok!
thanks a lot !!!!

Override existing view Link Bind Condition to search within a Master Detail

Hi All,
I have 4 level master detail with View Links setup with all of them
First Level -> Area
Second Level -> Row
Third Level -> Locator
Fourth Level -> item
All these are rendered graphically with the help of multiple af:iterators.
Now my requirement is to search for items inside this. So ideally it should only the items that match the search criteria entered in af:quickQuery
In the queryListener of the quickQuery i have added a viewCriteria dynamically based on the search result.
But the problem is it doesnt return any row because the bindVariable automatically created because of viewLink gets added to the VO query and it doesnt return any rows.
Any pointers to overcome this. Please Advise.
Thanks,
Ajith

Hi,
overriding executeQueryForCollection allows you to access bind variable values for view accessors.
Frank

View links in oracle ADF/query featching from Database

Please any one help for this query
I have two tables Emp, Dept
I have query like this select * from Emp e, Dept d where e.deptno=d.deptno
Query is fetching like this
Empno Ename job Salary Comm deptno deptno dname      Loc
15 i1     support     50000     11     5     5     IT          sss
15 i1     support     50000     11     3     3     Account     sss
16 i2     support     8000     10     5     5     IT          sss
16 i2     support     8000     10     3     3     Account     sss
16 i2     support     8000     10     3     3     Software      sss
16 i2     support     8000     10     4     4     Operation      sss
Query is fetching 6 rows.
but my requirement is what ever records fetching from database with same employee number is one record that is same employee number dept names grouped I will show it as one record how to fetch records from data base.
Here is the example (My Requirement):
This is first row:
Empno Ename job Salary Comm
15 i1     support 50000     11
Deptno dname      Loc
5     IT          sss
3     Account     sss
This is second row:
Empno ename job Salary Comm
16 i2     support     8000     10
Deptno dname      Loc
5     IT     sss
3     Account     sss
2     Software sss
4     Operation sss
i am useing oracle ADF if any possibility in view links either i get from the query as i mentioned.
plz any one can help
thanks

Please any one help for this query
I have two tables Emp, Dept
I have query like this select * from Emp e, Dept d where e.deptno=d.deptno
Query is fetching like this
Empno Ename job Salary Comm deptno deptno dname      Loc
15 i1     support     50000     11     5     5     IT          sss
15 i1     support     50000     11     3     3     Account     sss
16 i2     support     8000     10     5     5     IT          sss
16 i2     support     8000     10     3     3     Account     sss
16 i2     support     8000     10     3     3     Software      sss
16 i2     support     8000     10     4     4     Operation      sss
Query is fetching 6 rows.
but my requirement is what ever records fetching from database with same employee number is one record that is same employee number dept names grouped I will show it as one record how to fetch records from data base.
Here is the example (My Requirement):
This is first row:
Empno Ename job Salary Comm
15 i1     support 50000     11
Deptno dname      Loc
5     IT          sss
3     Account     sss
This is second row:
Empno ename job Salary Comm
16 i2     support     8000     10
Deptno dname      Loc
5     IT     sss
3     Account     sss
2     Software sss
4     Operation sss
i am useing oracle ADF if any possibility in view links either i get from the query as i mentioned.
plz any one can help
thanks

View Link between two query views

Hi is it possible to create a view link between two views having the where clause bind variables.
How you set the bind variables at the run time for the View objects. It is giving hard time for me to use the Master view in the XmlData bean to generate the Xml document.
I am able to set the Master views bind variables, but for view link destination view
where clause bind variables are not able to set ( link object link condition bind variables are binded run time but the views where chause bind variables of destination view are unable to setand bind)
Thanks
null

Easiest way to do this is to add additional transient attributes to your master view object, and then include those additional transient attributes in the list of source attributes for your view link. This way, you can get BC4J to automatically refer to their values with no additional code on your part.

[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

EJB Finder View Links and CMR

Hi,
Can someone please give me some input on the following warning in the JDeveloper online help!
"Warning: You cannot create an EJB finder view link that expresses the same relationship as a CMR."
I'm new to EJB, BC4J and JDeveloper. I created container managed entity beans with local interfaces only to represent my data and relationships. No problems with the mapping so far.
To test the beans I used Session Facades with remote interfaces and build a sample test client.
Now I thought I could create EJB Entity Facades, EJB Finder View Objects, EJB Finder View Links and EJB Application Modules to make use of the BC4J framework in order to speed up programming clients (JSP and JClient).
So I've started studying the JDeveloper online help (which seems to be very useful) and found the above mentioned warning.
Well, better a warning than nothing at all, but some more explanations would have been even better.
Is there no need to use view links with CMR?
How to achieve the same functionality (synchronizing two view objects in a master-detail-relationship) with CMR?
Do you know any examples? I couldn't find any examples using EJB entity facades in the "sample code" area on OTN.
Any comments about other (better) architectures are also welcome. Would it be better to use BMP entity beans in conjunction with BC4J?
Many thanks for your help!
Regards,
Eric

Steven,
thank you for your reply and suggestions - I'll count on that. If I find time I'll read this book. It seems to be very interesting.
For educational purposes I'd like to look at both persistence implementation strategies. I agree that it looks definitly easier to use entity objects. Certainly it's also performancewise a better choice.
Anyhow, could you give me some useful tips for cmp entity beans and finder view objects?
Is there something which works completely different if I use BC4J on top of it?
How to implement a master-detail relationship in JClient (Swing) for example?
What about writing an ejbfinder which doesn't return all, but all data where the foreign key is equal to a parameter passed to the finder method and use this as the source for a detail view object. This could be the primary key of the selected master. Well, I don't know whether this is doable. But that's what comes to my mind spontaneously.
Would this be a solution? I'm still thinking about the aforementioned warning in the online help regarding view links.
I guess the problem is that the foreign key is not part of the entity bean as it's not a cmp-field. Instead you have accessor methods to retrieve a related object or a collection of objects.
I'm sure my questions are not too complicated to answer. It's only hard for a beginner to get an overview.
I'm quite confident that I'll manage this if I give my best and get some help from knowledgeable people like you Steven.
Regards,
Eric

ADF BC: both ID and view link object as getter/setter in row impl

I notice something when generating the row implementation of VO that have links to other VO. I can't seem to find the logic behind it...
Following model:
users( id, address_id,name,firstname,...)
address(id, street,number,...)
their is an assosiation between the UsersEO and the addressEO. Their is also a view link between the UsersVO and the AddressVO based upon the assosiation of the EO's.
When we create the row implementation of the UsersVO we find a getter and setter for both the address_id as well as the address row object.
Why is this?
We have this issue because i added the UsersVO and the addressVO to the app module but i haven't added the link to the appModule but when i create the SDO from the appModule, the Users has both the address_id as the address row object.
THis does not seem to make sense. How do you use it correctly? Do you just need to set the address_id and can leave the row object null or do they both need to have the same? What if you set the address_id to 1 but the id in the address row object is set to 5...
How do the databindings handle these things?
To me it seems more logical that the VO only has a getter and setter for the address object and handles the address_id in the background according to the values in the address object.
Can someone explain me why this is implemented this way and how to handle it correctly?
Edited by: Yannick Ongena on Sep 27, 2010 5:29 PM

Yannick Ongena wrote:
When we create the row implementation of the UsersVO we find a getter and setter for both the address_id as well as the address row object.
Why is this? The definition of the VL allows you to optionally generate accessors for the underliying VOs, i.e. getAddressVO() in the UsersVO and getUsersVO() in the addressVO.
We have this issue because i added the UsersVO and the addressVO to the app module but i haven't added the link to the appModule but when i create the SDO from the appModule, the Users has both the address_id as the address row object. You should add the addressVO to the AM using the VL instead and not by itself.
THis does not seem to make sense. How do you use it correctly? Do you just need to set the address_id and can leave the row object null or do they both need to have the same? What if you set the address_id to 1 but the id in the address row object is set to 5...
As mentioned above, once you add the addressVO to AM using the VL, the framework will take care setting the value of the row objects accordingly.

View Link on two programmatic view objects

Hello,
I use Build JDEVADF_11.1.1.1.0_GENERIC_090615.0017.5407
I have two programmatic View Objects with data from other sources (an ArrayList in my example).
Now I would like to create a View Link on it. How can I do this?
I'm quite new on Java and ADF...
I know it is possible because I already found Steve's example 132 here [http://blogs.oracle.com/smuenchadf/examples/|http://blogs.oracle.com/smuenchadf/examples/]
But could somebody create a simple example based on my example classes below (which is understandable for a newbie like me ;-) ?
Has been asked already here, but I did not found a solution as yet.
Error with view link and ADF table Tree
This is my example code for the view objects:
Employee.java:
private Number empno;
private String ename;
private Number dept;
with getters and setters...
Department.java
private Number deptno;
private String dname;
with getters and setters...
public class StaticDataDepartmentsImpl extends ViewObjectImpl {
int rows = -1;
private List<Department> departments = new ArrayList<Department>();
protected void executeQueryForCollection(Object rowset, Object[] params,
int noUserParams) {
// Initialize our fetch position for the query collection
setFetchPos(rowset, 0);
super.executeQueryForCollection(rowset, params, noUserParams);
// Help the hasNext() method know if there are more rows to fetch or not
protected boolean hasNextForCollection(Object rowset) {
return getFetchPos(rowset) < rows;
// Create and populate the "next" row in the rowset when needed
protected ViewRowImpl createRowFromResultSet(Object rowset,ResultSet rs) {
ViewRowImpl r = createNewRowForCollection(rowset);
int pos = getFetchPos(rowset);
populateAttributeForRow(r, 0, departments.get(pos).getDeptno());
populateAttributeForRow(r, 1, departments.get(pos).getDname());
setFetchPos(rowset, pos + 1);
return r;
// When created, initialize static data and remove trace of any SQL query
protected void create() {
super.create();
// Setup string arrays of codes and values from VO custom properties
initializeStaticData();
rows = (departments != null) ? departments.size() : 0;
// Wipe out all traces of a query for this VO
getViewDef().setQuery(null);
getViewDef().setSelectClause(null);
setQuery(null);
// Return the estimatedRowCount of the collection
public long getQueryHitCount(ViewRowSetImpl viewRowSet) {
return rows;
// Subclasses override this to initialize their static data
protected void initializeStaticData() {
Department d1 = new Department();
d1.setDeptno(new Number(10));
d1.setDname("IT");
Department d2 = new Department();
d2.setDeptno(new Number(20));
d2.setDname("HR");
departments.add(d1);
departments.add(d2);
// Store the current fetch position in the user data context
private void setFetchPos(Object rowset, int pos) {
if (pos == rows) {
setFetchCompleteForCollection(rowset, true);
setUserDataForCollection(rowset, new Integer(pos));
// Get the current fetch position from the user data context
private int getFetchPos(Object rowset) {
return ((Integer)getUserDataForCollection(rowset)).intValue();
public class StaticDataEmployeesImpl extends ViewObjectImpl {
int rows = -1;
private List<Employee> employees = new ArrayList<Employee>();
protected void executeQueryForCollection(Object rowset, Object[] params,
int noUserParams) {
// Initialize our fetch position for the query collection
setFetchPos(rowset, 0);
System.out.println("in executeQueryForCollection");
super.executeQueryForCollection(rowset, params, noUserParams);
// Help the hasNext() method know if there are more rows to fetch or not
protected boolean hasNextForCollection(Object rowset) {
System.out.println("in hasNextForCollection. Rows:" + rows);
return getFetchPos(rowset) < rows;
// Create and populate the "next" row in the rowset when needed
protected ViewRowImpl createRowFromResultSet(Object rowset,ResultSet rs) {
ViewRowImpl r = createNewRowForCollection(rowset);
int pos = getFetchPos(rowset);
System.out.println("in createRowFromResultSet. Pos=" + pos);
populateAttributeForRow(r, 0, employees.get(pos).getEmpno());
populateAttributeForRow(r, 1, employees.get(pos).getEname());
populateAttributeForRow(r, 2, employees.get(pos).getDept());
setFetchPos(rowset, pos + 1);
return r;
// When created, initialize static data and remove trace of any SQL query
protected void create() {
super.create();
// Setup string arrays of codes and values from VO custom properties
initializeStaticData();
rows = (employees != null) ? employees.size() : 0;
System.out.println("in create(). Rows=" + rows);
// Wipe out all traces of a query for this VO
getViewDef().setQuery(null);
getViewDef().setSelectClause(null);
setQuery(null);
// Return the estimatedRowCount of the collection
public long getQueryHitCount(ViewRowSetImpl viewRowSet) {
return rows;
// Subclasses override this to initialize their static data
protected void initializeStaticData() {
Employee e1 = new Employee();
e1.setEmpno(new Number(2333));
e1.setEname("Emp1");
e1.setDept(new Number(10));
Employee e2 = new Employee();
e2.setEmpno(new Number(1199));
e2.setEname("Emp2");
e2.setDept(new Number(20));
Employee e3 = new Employee();
e3.setEmpno(new Number(3433));
e3.setEname("Emp3");
e3.setDept(new Number(10));
Employee e4 = new Employee();
e4.setEmpno(new Number(5599));
e4.setEname("Emp4");
e4.setDept(new Number(20));
Employee e5 = new Employee();
e5.setEmpno(new Number(5676));
e5.setEname("Emp5");
e5.setDept(new Number(10));
Employee e6 = new Employee();
e6.setEmpno(new Number(7867));
e6.setEname("Emp6");
e6.setDept(new Number(20));
employees.add(e1);
employees.add(e2);
employees.add(e3);
employees.add(e4);
employees.add(e5);
employees.add(e6);
// Store the current fetch position in the user data context
private void setFetchPos(Object rowset, int pos) {
if (pos == rows) {
setFetchCompleteForCollection(rowset, true);
setUserDataForCollection(rowset, new Integer(pos));
// Get the current fetch position from the user data context
private int getFetchPos(Object rowset) {
return ((Integer)getUserDataForCollection(rowset)).intValue();
Who can help?
Thnx in advance!
Rolf

Rolf,
I guess when we try to do it for you, we end up with almost the sample code provided by Steve Muench.
So there from my point of view it doesn't make sense to do it all over.
Take some time and study the sample code, run it without changes and after that try some changes which suits your use case better.
If you don't understand what's going on in the sample post the question here and we try to help you.
Timo

Must view links dataTypes match ?

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