Master-Detail Key relationship

Hi All,
I am unsing EJB3.0 and Toplink POJO.
This is related to foreign key relationship. I am having two tables master and detail table. In both the table there is no record (Newly created table).
I want to design the page which will accept master value and detail value. i.e. Similar to display master-detail data using findAllquery object in Data Control Palette.
i.e. To accept input values for the newly created table. I design the page for the master table and created custom method to insert the record in the table.
But i want to design the page which will contain the detail part also in table format which will accept number of rows for to enter values in the table.
Finally i want to save it in both master and detail table when i click "Submit" action.
But i don't know how to implement the functionality for to accept the detail table part.
Please provide any link or sample or tips to design the page and to save the data.
Or we need to write custom method. Since we can't drag and drop the detail collection list from the findAllTable(). Its for to enter new record.
Thanks & Regards
Vimalan Balan

Hi Frank,
Please give suggestion or tips to complete my task.
Thanks & Regards
Vimalan Balan

Similar Messages

Best Practice to validate Master Detail Entity relationship

Hi,
I have the following validation requirement:
In a master detail relationship ensure that the user has completed at least 4 detail records for the master record.
My question is where this logic should be implemented, if I add this logic to the master EO how do I navigate the detail recordset and ensure that the records have been completed? Should I use a VVO, if so how do I get the detail records when they havnt been commited yet?
Thanks
Keith

I have a potential solution for this.
If I post the changes using trx.postChanges this will syncronise the entity cache with the database, it wont run validation and it wont commit the data, a subsequent commit immediately after my postChanges will fire validation and due to the fact that I previously posted the changes the data is available to the entity experts.
Does anyone have any views on this approach to validating data across entity objects and across records.
Keith

How can I upload multiple files in a master detail relationship?

I would like to be able to upload several files for one record (a one to many relationship). I tried using a master detail form, but the tabular form does not support file browse. I've searched the forum and found several examples asking how to upload multiple files at once. That is not what I'm trying to do. I simply want the user to browse, select a file, provide a file name and description. Then select the next file. When they are done selecting files (it may be one file or many files) I want them to hit the submit button and I'll run a procedure that saves the files to the database.
How can I do this? Thanks, you guys are the best. Elizabeth

Elizabeth,
I had this situation come up once and here's what I did, thought it may not be exactly what you're looking for.
I created a collection to store the ID's of the files that had been uploaded, along with the key and other information. The file browse input will upload your files into the wwv_flow_files table on submit. I was storing the documents in another application table.
The after submit process grabs the id from wwv_flow_files where the name is = to your file input.
After you add that ID and your associated master key in the collection, your final submit process fetches the files from wwv_flow_files and inserts them into your own table.
I can put an example on apex.oracle.com if that would be helpful.
Thanks,
Jeff

Problem with master/detail relationship

Two tables :
Master_table:
Customer_no primary key
Buyer_seller_type primary key
Product_code primary key
Detail_table
Branch primary key
Customer_no primary key
I altered detail_table and added 2 more primary key fields:
Buyer_seller_type primary key--
Product_code primary key.
Now I have to change the existing fmb according.
I have maintained master/detail relationship for these 2 tables in the form.
When I run this form and Try to save the date . I am getting error like
Cannot insert null into buyer_seller_type field ie my new column.
Insert into detail_table (branch,customer_type) values (:1,:2) ;
I have maintained master/detail relationship. And what r the others properties I have to set to overcome this .
my requirement is query should be like this:
insert into detail_table (branch,customer_type,buyer_seller_type,product_code) values (:1,:2,:3,:4) ;
how can i do this.
I am using forms 6.
plz its very urgent..plz help me.
advance thanks

Set following item property under Data node for both the new added column in detail table:
Copy Value from Item:
Enter <master_table_name.item_name>
Regards,
Hassan

ADF-Master detail-Foreign key generated By Trigger won't propaget to Detail

Hi All,
We have Master-Detail Table where Master table key is generated by DB.
And this key act as Foreign key in detail table.When we Creates Master Table records and commit it .It gets saved correctly But when we navigate to Create Detail record (Cretae button is taken from Detail) It opens in Create mode but does n't poppulate Foreign Key.
Can anybody plz explain..
Regards
Yogesh

Hi Frank,
Thanks for your reply.I don't know "the ADF Business Components tester "
what is this ?
I was able to solve my problem by making "Refresh after insert " Check box selected in Entity object.Now it is generating Master Key and also i am getting it in Detail.
But now problem is, Can we make details record in insert mode by 'Create opration' under Master View.My requirment is insert two records in detail table in background while inserting record in master.Where relationship is maintained by foreign key which generated by trigger.
I want master and detail create form on same page where i will make details from Rendering False i.e both should be in Create mode (Accesser should not retrive record).
In Short
ADF-BC Master Detail - Detail Record insert in Back ground on the same page
Thanks in Adv
RHY

ESB problem when use merge function in master/detail relationship

I have some problem with the merge function in database adapter.
details:
I have 2 tables in master/detail relationship, both have GUID column as a primary key (GUID generated by ESB).
'car_group' table
pk : guid
unique : group_no, datadate, datatime
===============================
guid, group_no, datadate, datatime, group_detail
===============================
1, 1, 01/01/2008, 09:00, groupdetail01
2, 1, 01/01/2008, 10:00, groupdetail02
'car_group_detail' table
pk : guid
fk : car_group_guid link to car_group.guid
==================
guid, car_group_guid, detail
==================
1, 1, detail01
2, 1, detail02
3, 2, detail03
4, 2, detail04
I used a file adapter as a input, here is an example text file
M, 1, 01/01/2008, 09:00, groupdetail01
D, detail01
D, detail02
M, 1, 01/01/2008, 10:00, groupdetail02
D, detail03
D, detail04
Because I used merge function so I need to specify the columns that will be a condition for the insert/update,
but I have generate GUID as a primary key in the tables, I can't used it, so in toplink I map my unique key as a primary key.
The insert operation work fine but when update is required (for example, try to change 'group_detail' column of the master table in text file),
an SQLException thrown, the log file shown the adapter try to update the GUID column of master table but the constraint not allowed.
And yes, cause of GUID generate everytime so ESB try to update this column also, but I don't want to do like that, I need something
like when update operation required, just ignored the GUID column.
I try to mark read-only to the GUID column in Toplink mapping file but still have the same problem, it still generate UPDATE statement
with the GUID column, and also I try to let the database trigger to generate GUID instead of ESB function, but it not works in master/detail
relationship (I think the Toplink manage the relationship, is it right ?)
Please advise, thanks for advance.

somebody please help, thanks !!!

Is it possible to display records without master detail relationship?

Hi all,
I've a form for importing excl to oracle with column mapping. i.e I've display excl column heading on the form.
In front of each excel column heading I've provide a list item which contains table column heading so user can map his excl column with table column and according to data gets insert into the database table.
There are 28 excel and table column headings on the form every time user will have to map the column. Its very time consuming job. That's why I've decide to provide template to user. e.g user maps the excl column with table column only first time, then this combination is saved as 'template 1' . when user runs the form next time he/she needs to just select template-1 from lov. and that template get displayed on the forms field. Then user will press the process button and data gets inserted into respective table
Now I've created two tables
1. mst_template
template_name        varchar2(100) ---primary key.
2. template
template_name   varchar2(100) --- foreign key (ref. tempalte_name - mst_template)
ex_col                varchar2(100)
tb_col                varchar2(100)Now my problem is, I try the master detail relationship but it doen't works becase on my form the condition is
excel col                                   table col
excl_col1                                 Tab_col1
excl_col2                                  tab_col2
excl_col28                                Tab_col28       i've establish the master detail relationship but getting error
FRM-40505:ORACLE error:unable to perform query. as i use excl_col1, tab_col1.. etc
can i achieve it by using cursor? without using master detail relationship. My 90% coding is done. only thing remaining is to display records on form. so can i use cursor in this situation? and how? I've work so hard on it and lot of time is spend too so i don't want to change the coding of the existing form. any suggestion for this problem.
please help
Regards
sam.

Turning on Closed Captioning is all you can do. I think the problem you have is that not all movies have closed captioning.

Master Detail - Detail parent child relationship

Hello All,
I have a setup where I have 3 tables. Call them A, B, and C. Table A is the parent table to the child table B. Also table B is the parent table to the Child table C. Is there a way to represent this in Apex? So far I have created two Master Detail forms: Master Detail form one has the relationship A+B and Master Detail form two has the relationship B+C. Can Apex support a Master Detail Detail form.
Also, is there a way to have my detail page editable without linking to another page to save and update?
Please let me know what everyone thinks.
Thanks
Ryan

Hi,
You can google it - so much information is available online. Any how
Parent Child relationship
PK FKBasic example - Parent and Child in real life -similarly the Table_A is having relation with some other Table_B.
Example
Table_A
columns :-
Student_No, Student Name, Student_address
Now the Table_B store the assignment details
Student_No, Subject_1,subject_2, subject_3
Now relation of join is Table_A.Student_No = Table_B.Student_No
With out the TAble_A details -can be identified the Sudent details etc., No - It's Master data - which is not dependent on any other table and Column Student_No- Acts Primary Key which is Unique -through which we can identify a specific details of particular student. Now comes to Table_B - with out the student_No - we can't say whose details of assignments belongs to whom - now the student_No in Table_B is dependent on some other table - now this table acts a child and Primary Key of Table_A acts Foreign Key - that column helps to identify the record.
Master Detail
Reference tablesconcept of understanding is same when - when comes c,c++, java and c sharp - acts the same but inheritance, interfaces, polymorphisms and overloading code of language differs. If you go further j2ee differs
HTH
- Pavan Kumar N
Oracle 9i/10g - OCP
http://oracleinternals.blogspot.com/

Visualize master-detail relationships using SQL Edge 1.2

SQL Edge 1.2 released by Bay Breeze Software (http://www.baybreezesoft.com) is an Eclipse Rich Client application that allows users to execute SQL queries, browse schema information, and visualize master-detail relationships.
With SQL Edge, users can use only one query to retrieve data in a master table, and then browse data in all related detail tables. Users can also insert, edit, and delete table records in the data grids.
SQL Edge has four perspectives. The Query Perspective allows users run any SQL queries, while the Schema Perspective displays table schema information. There are two relationship perspectives. The Relationship Table View displays data in the master-detail style. The Relationship Tree View displays master table records as top-level tree nodes. The nodes can be expanded to reveal any level of related detail records. In addition, clicking any node will display the corresponding data in a detail grid.
The following summarizes SQL Edge's major features:
(1) Support any JDBC compatible databases.
(2) Allow users to specify JDBC drivers at run-time, and provide wizards to help setup JDBC connections. Easy to install, and easy to setup.
(3) SQL editor with syntax highlighting based on currently connected databases.
(4) SQL edtior allows users to execute SQL queries asynchronously. Users can cancel the execution by click the "Cancel" button or just close the SQL Editor.
(5) Schema perspective displays the table schema information, including column definitions, primary key, indexes, and foreign keys.
(6) Relationship table view displays the related data in master-detail style, with master table data shown in the top grid, and all related detail table data in a list of bottom grids.
(7) Relationship tree view displays the master table records as top-level tree nodes, and the related detail records as child nodes. Click any of these tree nodes will display the corresponding record data in a detail grid.
(8) Allow users to insert, edit, and delete records in the master and detail grids of the relationship table view and relationship tree view.
(9) Allow users to define master-detail relationships even between tables in different databases. This enables the relationship table view and relationship tree view to display data relationships between tables in different databases or without pre-defined foreign keys.

Hi, Martin.
Maybe you don't need a master detail relationship. Do you need to do changes in your detail block, or just queries?
If just queries, you can create your second block based on a From-Clause Query, and change the QueryDataSourceName property with a When-List-Changed trigger in your T-List.
I know this is a little vague but, without knowing what you need to do in the second block, I'm afraid to tell you more.
Feel free to mail me directly, if you need some pointers about Forms.
Pedro

Master Details relationship

I have an application where I need to have master detail relationship. I have seen a demo ( dept-emp ) but my requirements are slightly different from this demo.
Just to simplify it, I have these fields in the SD_SOWS which acts as MASTER table and it has SOW ID as primary key.
And I have 2 detail tables. One is used to hold all the handsets (SD_SOW_HANDSETS ) and the other one is to hold all the platforms ( SD_SOW_PLATFORMS ) . And they both are tied up using SOW_ID column ( this is the fk ).
The problem arises when I added a new SOW and I have assigned SOW ID with the new value automatically by changing SOURCE to SQL Query and run this statement below :
SELECT NVL( NEXTVALUE ,1)
FROM (SELECT MAX(SOW_ID) + 1 NEXTVALUE
FROM SD_SOWS
But
1) when I added the one of detail tables ( SD_SOW_HANDSETS ) , this new SOW ID doesn't get carried forward to SOW ID column of this detail table (it becomes blank )
2) If I entered this column manually ( assuming I use the same number as the one in MASTER table -SD_SOWS ) and I have it saved , it throws exception
ORA-02291: integrity constraint (DSSMASTER.FK_SOW_HANDSET_SOWID) violated - parent key not found
I know the reason is that I haven't confirmed and saved the master table yet but I was wondering if HTMLDB can create a dummy SOW ID in the MASTER table and save it temporarily in db where it allows the children / details to reference the same number.
any ideas ?
Dony

I'm always getting the same details for all masters rows. any idea what could it be ? Sounds like you didn't set the Block.Query Data Source Arguments property so that your Master block key values are not getting passed to your "Query" procedure. You will need to create a parameter to your procedure for the key value as well. Did you use my Demo or My Oracle Supports? If you used my demo, you will need to modify the EMP_SELECT procedure to accept the DEPT_NO as a parameter and then adjust your query to use the parameter.
If you used My Oracle Supports demo (doc ID 66887.1) then look at Example B. Multi-Block operations with Master-Detail relationship. It shows you how to write the query procedure to accept additional parameters.
Hope this helps,
Craig B-)
If someone's response is helpful or correct, please mark it accordingly.

Master-Detail Relationship problem

I've spent 1.5 days already trying to solve this problem. I'm creating a JClient application using BC4J with a Master-Detail relationship. The relationship between tables is a many-to-many thru an intersection table. I've gotten my master and detail data to show with columnar form data in the top(master) panel and table data in the lower(detail) panel. My problem is that each time I get a master record that contains more than one detail record, each time I click the next navigation button in the master pane it will remain on the master record for the number of detail entries. For example, if a master record has 3 children, then I must click the next button 3 times to move to the next master record. I know that it has something to do with the way the entities are joined but I can't figure out how to join them any other way. Can anyone give me a hint how I can make the master panel only show one record for each Master-Detail relationship (even though the intersection table says its a many-to-many)?
Thanks,
Mark

Apparently, I was making things much more complicated than they needed to be (rather, JDev was). My first attempt at MD relationships, I followed the examples in the help files. JDev created VO's, Entities, Assoc's, View Links, etc... Everything but the kitchen sink! After researching a bunch more, I found that the only thing I needed to do was to create my view objects to display exactly what I wanted to see in my panel regardless of whether it was a parent or a child. Once I had the view objects straight, then I could connect them using a view link and JDev handled the rest. Pretty slick but, I wish there was some better documentation. My next problem is that I'm trying to make this a Master-Detail-Detail-Detail window. The master needs to be a JComboBox, displays only a date, and needs to appear in the same panel as it's child. The 1st child will have a navbar that cycles through a bunch of orders based on the date from the combo box. The order panel's child is in the lower panel and displays the order detail items. It also has a navbar. The lower detail panel needs to have a split pane with the upper part showing the order detail and the lower part showing the materials used in making up that order detail item.
So far, I've got the first 3 parts done (ie. combobox, orders, and details). For the combobox, I used a JComboBox navigationbinding. It shows the correct date, but my control is always disabled. I can't figure out why the combobox is always disabled. The enabled property is set to true. Anbody have any clues?
Thanks,
Mark

Displaying a Master Detail Relationship in a Panel Accordion or Tabs

Hi,
Is it possible to display a Master-Detail relationship in a Panel Accordion or Panel Tab or other component that visually divides the display?
Say I have a Department - > Employees master detail relationship and I want each tab in my accordion to represent each
departments and when I clicked the tab, the list of employees associated with that department is displayed.
I am exploring this idea but I cant get to find a resource on how to move forward. I am using JDev 11.1.1.4. Thanks

Hello,
I recently faced the same problem and did not find a clean solution either. So I implemented it a bit more "dirty". :-)
Instead of using the Department > Employee view link, I just created a new view object (say EmployeesFromDept), that has a bind parameter called p_DeptId:
     SELECT ...
     FROM   EMPLOYEES e
     WHERE e.DEPARTMENT_ID = :p_DeptIdThe Data Control of this VO will have an ExecuteWithParams operation that takes the department id as input. Create an action binding in your page definition that binds to this operation, called "RefreshEmployeesForDept":
     <action IterBinding="EmployeesFromDeptIterator" id="RefreshEmployeesForDept"
            InstanceName="MyAMDataControl.EmployeesFromDept"
            DataControl="MyAMDataControl" RequiresUpdateModel="true"
            Action="executeWithParams">
      <NamedData NDName="p_DeptId" NDValue="" NDType="java.lang.String"/>
    </action>In your page, add the current DepartmentId to each showDetailItem using an attribute and add a disclosureListener:
     <af:iterator id="i1" value="#{bindings.Departments.collectionModel}" var="row">
            <af:showDetailItem text="#{row.DepartmentName}" disclosureListener="#{pageFlowScope.myBean.toggleDisclosed}">
               <f:attribute name="currentDepartmentId" value="#{row.DepartmentId}"/>
                          <af:table value="#{bindings.EmployeesFromDept.collectionModel}" var="row"
                      rows="#{bindings.EmployeesFromDept.rangeSize}"
                      emptyText="#{bindings.EmployeesFromDept.viewable ? 'No data to display.' : 'Access Denied.'}"
                      fetchSize="#{bindings.EmployeesFromDept.rangeSize}"
                      rowBandingInterval="0" id="t1">
               //Lots of mapping column here
                    </af:table>
            </af:showDetailItem>
     </af:iterator>Now each showDetailItem that is generated knows the DepartmentId it "belongs to". In the toggleDisclosed(DisclosureEvent disclosureEvent) method, first fetch this attribute, so that you know the dept id of the showDetailItem that was clicked. Next, programmatically call the RefreshEmployeesForDept action binding if the current event is "disclosing the showDetailItem":
     public void toggleDisclosed(DisclosureEvent disclosureEvent) {
          String currentDepartmentId = disclosureEvent.getComponent().getAttributes().get("currentDepartmentId").toString();
          if(disclosureEvent.isExpanded()){
               DCBindingContainer bindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
               OperationBinding operBinding = bindings.getOperationBinding("RefreshEmployeesForDept");
               if(operBinding != null){
                    operBinding.getParamsMap().put("p_DeptId", currentDepartmentId);
                    operBinding.execute();
    }Now, each time a showDetailItem is opened, the bind variable of the iterator belonging to your list of Employees will be refreshed with the correct DepartmentId. Ie the department that the showDetailItem represents.
Hope this helps! If you find a cleaner solution, please let me know. :-)
Regards,
Chris

Problem with primary key violation in master-detail screens

Hi,
I found a problem/bug in master-detail screens in which the PK of the detail table consist of the PK of the master table and an additional column. E.g. a manually entered sequence 'in parent'.
I will use the following simple scenario to explain the problem (it's easy to reproduce):
PROJECT table
# id (PK)
* name
PROJECT REQUIREMENTS table
# prj_id (PK)
# sequence_id (PK)
* description
Just create the BC EO, VO and AM and set both display properties of the prj_id attribute of the project requirements VO to hidden.
Create a new screen in the application structure file in which you can select a project (table-form layout) and display the details (table layout) on the same page.
With this basic setup you can generate the app to enter, update and delete projects and their requirements.
The problem occurs if you have a project with a least 1 requirements stored in the database and you try to enter a second requirement with an existing sequence_id within the project. This is an use case in which a end-user enters wrong data.
So assume we have in the database:
prj_id sequence_id description
====== =========== ===========
1 1 req1
and the end-user enters (prj_id is entered automatically as it's not displayed):
1 1 req2 >> user should have enterd sequence_id 2...
Step 1. If you try to save an error will be displayed:
JBO-25013: Too many objects match the primary key oracle.jbo.Key[227300 1 ].
And the sequnece_id is emptied automatically.
Step 2. So the end-user re-enters the sequence_id but fills in 2 now and saves.
Another error is displayed: JBO-27014 sequence_id in AppModule is required
How strange? Everything is filled in already.
Step 3. If you just hit save again (without changing anything) you got a transaction completed successfully.
I checked the logfiles and noticed an exception during after executing step 2.
oracle.jbo.AttrValException: JBO-27014: Attribute SequenceId in AppModule.ProjectRequirementsView2 is required at oracle.jbo.AttrValException.<init>(AttrValException.java) at oracle.jbo.server.JboMandatoryAttributesValidator.validate(JboMandatoryAttributesValidator.java) at oracle.jbo.server.EntityDefImpl.validate(EntityDefImpl.java:2051) at oracle.jbo.server.EntityImpl.validateEntity(EntityImpl.java:1373) at mypackage1.ProjectRequirementsImpl.validateEntity(JwTekeningnummerImpl.java:273) at oracle.jbo.server.EntityImpl.validate(EntityImpl.java:1508) at oracle.jbo.server.EntityImpl.validateChildren(EntityImpl.java:1232) at oracle.jbo.server.EntityImpl.validateEntity(EntityImpl.java:1339) at oracle.jbo.server.EntityImpl.validate(EntityImpl.java:1508) at oracle.jbo.server.DBTransactionImpl.validate(DBTransactionImpl.java:3965) at oracle.adf.model.bc4j.DCJboDataControl.validate(DCJboDataControl.java:967) at oracle.adf.model.binding.DCBindingContainer.validateInputValues(DCBindingContainer.java:1683) at oracle.jheadstart.view.adfuix.JhsInitModelListener.validateInputValues(JhsInitModelListener.java:193) at oracle.jheadstart.view.adfuix.JhsInitModelListener._doModelUpdate(JhsInitModelListener.java:166) at oracle.jheadstart.view.adfuix.JhsInitModelListener.eventStarted(JhsInitModelListener.java:92) at oracle.cabo.servlet.AbstractPageBroker._fireUIXRequestEvent(Unknown Source) at oracle.cabo.servlet.AbstractPageBroker.handleRequest(Unknown Source) at oracle.cabo.servlet.ui.BaseUIPageBroker.handleRequest(Unknown Source) at oracle.adf.controller.struts.actions.StrutsUixLifecycle$NonRenderingPageBroker.handleRequest(StrutsUixLifecycle.java:325) at oracle.cabo.servlet.PageBrokerHandler.handleRequest(Unknown Source) at oracle.adf.controller.struts.actions.StrutsUixLifecycle._runUixController(StrutsUixLifecycle.java:215) at oracle.adf.controller.struts.actions.StrutsUixLifecycle.processUpdateModel(StrutsUixLifecycle.java:106) at oracle.jheadstart.controller.strutsadf.action.JhsStrutsUixLifecycle.processUpdateModel(JhsStrutsUixLifecycle.java:140) at oracle.adf.controller.struts.actions.DataAction.processUpdateModel(DataAction.java:317) at oracle.jheadstart.controller.strutsadf.action.JhsDataAction.processUpdateModel(JhsDataAction.java:622) at oracle.adf.controller.struts.actions.DataAction.processUpdateModel(DataAction.java:508) at oracle.adf.controller.lifecycle.PageLifecycle.handleLifecycle(PageLifecycle.java:112) at oracle.adf.controller.struts.actions.StrutsUixLifecycle.handleLifecycle(StrutsUixLifecycle.java:70) at oracle.adf.controller.struts.actions.DataAction.handleLifecycle(DataAction.java:223) at oracle.jheadstart.controller.strutsadf.action.JhsDataAction.handleLifecycle(JhsDataAction.java:389) at oracle.adf.controller.struts.actions.DataAction.execute(DataAction.java:155) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1485) at oracle.jheadstart.controller.strutsadf.JhsActionServlet.process(JhsActionServlet.java:127) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:527) at javax.servlet.http.HttpServlet.service(HttpServlet.java:765) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65) at oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source) at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:16) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:239) at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:239) at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:20) at oracle.jheadstart.controller.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java) at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:645) at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:322) at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:790) at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270) at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112) at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192) at java.lang.Thread.run(Thread.java:534)
This also explains why I got a error message within the application at step 2, but not an expected error message!
From the logfile I can see something is going wrong in the oracle.jbo.server.EntityImpl.validateEntity method.
To get more insight what was goning on I overridden the validateEntity method in my VO Impl class:
protected void validateEntity()
System.out.println("MARCEL>> sequenceId=" + getSequenceId());
System.out.println("MARCEL>> description=" + getDescription());
super.validateEntity();
In step 1 the validateEntity is not called.
In step 2 the sequeceId = null (and description = reg2)
I expected the sequeceId to be 2 now as I entered this. Furthermore if I look at the (JhsActionServlet) request parameters in the log, I can see that the value of the sequenceId was 2. I guess something is going wrong at this point in converting the request parametes to the EO.
In step 3 the sequeceId = 2 (as expected)
Note that I'm using the evaluation copy version of JHeadstart 10.1.2.
If this was patched in any later build, could you please tell which changes I have to make to the JHS sources to solve this problem.
Regards,
Marcel

Marcel,
I cannot reproduce this in version 10.1.2.2. We did not "fix" this, although changes in the runtime might have fixed this "silently". I suggest you upgrade to 10.1.2.2 and see whether you still get the error.
Steven Davelaar,
JHeadstart Team.

Procedure Based Form with master details Relationships

Helo All
Here i m having some problem in making one form which is having 2 tables one is master and other is detail table and i already made relationship between them but still i make both forms at that moment form didn't make the auto relationship.even after taht when at the form level i made the relationship between 2 tables it made but at teh compilation time it gives error.
Actually one table was there at that time it worked but with relation it creates problem.
Can anybody give me any idea how to sort out this problem.

Helo Frankin
Actualy the error came when i made the master detail relation manualy.but as per me if both tables have relationship with each other then no need to create it manualy isn't it?
even after that i created teh relation manaualy but at the on clear block details trigger it showed compile time error.
If possible can u give me any live example for this
TQ
Vivek

Problem using rollback in master-detail relationship

Hello,
I have an odd error using master-detail relationship, for example: countries and states. This is the problem:
I have 3 pages:
Page A: Read-only table of countries
Page B: Read-only table of states
Page C: State form
and the flow:
1. In the page A, select a country and click button to go to the states page
2. In the page B, select a state and click detail button to go to the state form page
3. In the page C, edit something and click rollback button. The rollback button's action goes to the page B
4. In the page B, the states table is empty but I expected the table contains the same states those were in the step 2
I know it's a bit difficult to understand but I hope someone can help me.
Thanks, edwin.
Edited by: user13259215 on Jun 19, 2012 10:44 PM

On invoking Rollback the whole of AM is refreshed and hence all VOs are refreshed. The first row in all VOs is selected by default. You will need to retain the VO row selections on your own. Check this thread for ideas.
Stay on previous or next row on rollback.

Master-Detail Key relationship

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