Creating emty rows in View Object

Hi,
My Application is ADFBC.
My requirement is create empty rows while page loading.I am using three tables one is master and another two are detailed tables.
creation form is: master form
detailed table
detailed table.
when i am pressing create button the form shows two emty rows in detailed table and 7 empty rows in second detailed table.
i wrote code in AMImpl is
public void createcomp() {
SequenceImpl s = new SequenceImpl("ATTRIBUTE_ID_S", getDBTransaction());
Number next = s.getSequenceNumber();
Number n=(Number)s.getData();
Number ssid=next+(new Number(1));
FbCmnEmcStorageSystemsVOImpl fbCmnEmcStorageSystemsVO = (FbCmnEmcStorageSystemsVOImpl) this.getFbCmnEmcStorageSystemsVO1();
FbCmnEmcStorageProcessorsVOImpl fbCmnEmcStorageProcessorsVO = (FbCmnEmcStorageProcessorsVOImpl) this.getFbCmnEmcStorageProcessorsVO2();
FbCmnEmcStorageComponentsVOImpl fbCmnEmcStorageComponentsVO = (FbCmnEmcStorageComponentsVOImpl) this.getFbCmnEmcStorageComponentsVO2();
// FbCmnEmcStorageSystemsVORow fbCmnEmcStorageSystemsVORow = (FbCmnEmcStorageSystemsVORow) fbCmnEmcStorageSystemsVO.createRow();
for(int i=1;i<=2;i++)
FbCmnEmcStorageProcessorsVORow fbCmnEmcStorageProcessorsVORow = (FbCmnEmcStorageProcessorsVORow) fbCmnEmcStorageProcessorsVO.createRow();
fbCmnEmcStorageProcessorsVORow.setStorageSystemId(new Number(ssid));
fbCmnEmcStorageProcessorsVORow.setSpId(new Number(i));
for(int i=0;i<7;i++) {
FbCmnEmcStorageComponentsVORow fbCmnEmcStorageComponentsVORow = (FbCmnEmcStorageComponentsVORow) fbCmnEmcStorageComponentsVO.createRow();
fbCmnEmcStorageComponentsVORow.setStorageSystemId(new Number(ssid));
fbCmnEmcStorageComponentsVORow.setComponentName("sample"+i);
i am calling this method while page loading using these procedure:
expose the method as a client method and create a method binding for it (in pageDef). Then create an invokeAction (also pageDef but Executables section) pointing to the method binding. Set the invokeAction refresh condition (property of it) to
${!adfFacesContext.postback}
but i am not getting emtyrows in display.
what i have to do?please help me.
Thanks,

Hi,
see this section in the developer guide for the answer
http://download-uk.oracle.com/docs/html/B25947_01/bcdcpal004.htm#sthref823
Frank

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as my vo are based on procedure, i know that i can't update the table using them.
i only wanted to insert the rows in the vo and show it to user (only for selection purpose).
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thanks

Have you seen Shay's video https://blogs.oracle.com/shay/entry/adf_faces_dynamic_tags_-_for_a
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Timo

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Edited:
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AND UnitEO.UNIT_TYPE = UnitTypeEO.UNIT_TYPE
AND UnitEO.AREA_ID = AreaEO.AREA_ID (+)
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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'
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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/>
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inner join MD_SEARCH_ENTITIES se
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from MD_SEARCH_ENTITY_PK sep
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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

Master-Detail: create detail-row(s) with id already filled in

I have two tables with an one-to-many relationship (connected by 'id'). If you select a row from the master-table, you'll see the detail-table (with the various row's belonging to the master-record). Now I made a button which users can use to add additional rows to the detail-table. They get a form which they can fill in and submit, the only problem is... I don't want them to manualy fill in the id, this should be the only field that should already be filled in (or better should be invisible, but filled in). So they should select a master-row first and then click 'add' to add a detail-row(s) to it. But I have absolutely no clue how I can do this... I tried creating custom create methods in the view-object or entity-object... but the problem I keep running into is where to get the row-iterator... I have know idea if this is the right direction to look for, maybe somebody can give me some advice.
Thanks in advance...!

Steven, hope you can help me out once more...
I have the same problem with a different view object, I'll explain...
First of all I set jbo.locking.mode to 'optimistic', now the problem...
I have two entity objects (Mbrships and Mbrshiphistory) which are connected by a foreign key (created in the database) on MbrshipID. Mbrshipshistory is also connected to the Aff entity object by a foreign key on AffID. The idea is simple... there are affiliates and a couple of memberships. An affiliate has/had a membership, that's where the membershiphistory-table comes in, which stores AffID, MbrshipID, DateFrom, DateTo and some other values.
Now, what I created... JDeveloper created entity-objects of all the tables and made associations of the foreign keys. I created the following view objects: http://213.93.142.238/oracle/datamodel.jpg and application module: http://213.93.142.238/oracle/applicationmodule.jpg The (MemberToMembershipHistory) view link between Members and MembershipHostory is based upon the association between the two tables.
The following is a screenshot of my struts-config.xml: http://213.93.142.238/oracle/struts-config.jpg
Editing mbrshiphistories works fine, but I get the following error when I try to add one: oracle.jbo.InvalidOwnerException: JBO-25030: Failed to find or invalidate owning entity. I also don't see the AffID already filled in in the add/edit-screen (same problem as in the opening-post) when I try to add one. I double-checked everything, but I can't find the problem. Do you know what I do wrong...?

Creating emty rows in View Object

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