Issues in Table with Multi-Row Insert

I have created a master detail screens using jheadstart on 2 separate pages, Master in the Form layout and detail in the Table Layout with multi-row insert, update and delete flags ON. Have set the New Rows count = 2.
Issue 1
If I try to delete any existing rows, it gives error for new rows saying value is required for the mandatory fields. It should just ignore the new rows if I have not updated any values for any attributes in the those row(As it does for non Master-Detail Table layout). I guess this might be happening because the jheadstart code is setting the foreign key for new rows the detail, but not resetting the status of the rows back to INITIALIZED.
I also noticed that the create() of underlying EO is getting called for those blank rows when I click on 'Save' button, even if I have not changed any data in those rows.
Issue 2
When I try to select the new rows also for deletion, I am getting a '500 Internal Server Error' with following stack trace... This is also happening for normal (non Master-Detail) Table layout.
java.lang.IllegalStateException: AdfFacesContext was already released or had never been attached. at oracle.adf.view.faces.context.AdfFacesContext.release(AdfFacesContext.java:342) at oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:253) at oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)
Issue 3
I have put some validation code in the validate() method in the MyEntityImpl.java class.
The validate method seems tobe getting called lots of times, in my case 20 times, where the new rows are just 2.
Environment:
Jdeveloper 10.1.3, JHeadStart 10.1.3 build 78, Windows XP
thanks

Thanks for the reply.
Issue 1:
What I have observed that in case of multi-row select enabled tables, the blank rows do not have any data. This is because the EO's create() method is called only when we post the data using 'Save' button. Thus the Foreign Keys are also not setup. This is a correct behavior since create() and FK setups etc should get done only if the user has inputted any value in the new rows and thus intend to insert new data into the table.
I am able to find the exact cause of this issue. It is happening because in the details table, I have a column which needs tobe shown as checkbox. Since we can only bind checkbox to an Boolean attribute in VO, I have created a transient attribute of type Boolean, which basically calls the getter/setter of actual attribute doing the String "Y"/"N" to true/false conversion. Here is code for the transient attribute getter/setter
public Boolean getDisplayOnWebBoolean() {
return "Y".equals(getDisplayOnWeb()) ? Boolean.TRUE : Boolean.FALSE;
public void setDisplayOnWebBoolean(Boolean value) {
if(Boolean.TRUE.equals(value))
setDisplayOnWeb("Y");
else
setDisplayOnWeb("N");
Now when I click on the "Save" button, the setter for the boolean field is getting called with the value = false and this is resulting into the row being maked as dirty and thus the validation for the required attributes is getting executed and failing.
Issue 2:
Confirmed that correct filter-mapping entries are present in the web.xml.
Now when I select the new blank rows for deletion and click save, following exception is thrown:
java.lang.ClassCastException: oracle.jheadstart.controller.jsf.bean.NewTableRowBean at oracle.jheadstart.controller.jsf.bean.JhsCollectionModel.getRowsToRemove(JhsCollectionModel.java:412) at oracle.jheadstart.controller.jsf.bean.JhsCollectionModel.doModelUpdate(JhsCollectionModel.java:604) at oracle.jheadstart.controller.jsf.lifecycle.JhsPageLifecycle.processModelUpdaters(JhsPageLifecycle.java:541) at oracle.jheadstart.controller.jsf.lifecycle.JhsPageLifecycle.validateModelUpdates(JhsPageLifecycle.java:571)
thanks - rutwik

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478 db_block_buffers                                                                          3 0
482 db_block_checksum                                                                         2 TYPICAL
484 db_block_size                                                                             3 8192
682 db_file_multiblock_read_count                                                             3 128
942 db_block_checking                                                                         2 FALSE
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http://jonathanlewis.wordpress.com
Now on Twitter: @jloracle

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Kate

Hi
When updating compressed data Oracle has to read it, uncompress it and update it.
The compression is then performed again later asynchronously. This does require a lot more CPU than for a simple update.
An other drawback is that compression on highly modified tables will generate a major increase in redo / undo log generation. I've experienced it on an DB where RFC tables where by mistake compressed, the redo increase was over 15%.
Check the remark at the end of Jonathan Lewis post.
Regards
http://allthingsoracle.com/compression-in-oracle-part-3-oltp-compression/
Possibly this is all part of the trade-off that helps to explain why Oracle doesn't end up compressing the last few rows that get inserted into the block.
The effect can be investigated fairly easily by inserting about 250 rows into the empty table - we see Oracle inserting 90 rows, then generating a lot of undo and redo as it compresses those 90 rows; then we insert another 40 rows, then generate a lot of undo and redo compressing the 130 rows. Ultimately, by the time the block is full we have processed the first 90 rows into the undo and redo four or five times.

Multi Row Inserts

Is there any way of providing Multi Row Inserts in a single region.
I am looking for a way to add several records at once in a table format, much like the multi row update functionalty.
Is this possible?

Can you use an OUTPUT clause? See examples
MERGE INTO dbo.Customers AS TGT
USING dbo.CustomersStage AS SRC
ON TGT.custid = SRC.custid
WHEN MATCHED THEN
UPDATE SET
TGT.companyname = SRC.companyname,
TGT.phone = SRC.phone,
TGT.address = SRC.address
WHEN NOT MATCHED THEN
INSERT (custid, companyname, phone, address)
VALUES (SRC.custid, SRC.companyname, SRC.phone, SRC.address)
WHEN NOT MATCHED BY SOURCE THEN
DELETE
OUTPUT
$action AS the_action, deleted.custid AS del_custid, inserted.custid AS ins_custid;
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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Master/Detail in create mode with single row insert

Hi,
My jheadstart version is 10.1.3.2.52
I want to insert master and detail together on same page in create mode.
I have these settings:
- Master Layout: Form
- Detail Layout: Table
-"Single-Row Insert Allow" (Checked)
-"Single-Row Update Allow" (Checked)
-"Single-Row Delete Allow" (Checked)
-"Multi-Row Insert Allow" (unchecked)
-"Multi-Row Update Allow" (unchecked)
-"Multi-Row Delete Allow" (unchecked)
-"Show Add Row Button" (Checked)
When I Generate and run Application and click New Button, my detail table don't have any New Button.
Then I set "New Rows" to 1 for detail table and generate and run again, but problem still there!
Can you help me?
Thanks

Hi,
Thanks for your reply.
But I don't want multi-insert row be enabled(because of some logical reasons that forced by my scenario).
If I enable multi-insert row, even without "new row button" and just set "new row = 1", when user insert first row and click save button, one more empty row automatically add to detail table. I don't want this behavior. I want only one empty row for my detail table in create mode.
thanks again.

TO DRAW A TABLE WITH MULTIPLE ROWS AND MULTIPLE COLOUMNS IN FORM

Hi,
How to draw a table with multiple rows and columns seperated by lines in form printing?

check this
http://sap-img.com/ts003.htm
Regards
Prabhu

Filtering a table with 19699 rows

Hello
I am new to Xcelsisu and I am trying to aply filter component to a table with 19699 rows. I is suppose to show in the filter 45 diferent clasifications. I seems to be using only the first 500 rows to aply the filter. I changed the maximum number of rows in the preferences. What should i do ?

a component cannot handle 20.000 rows you should filter these in the database by using quries when getting the data in the dashboard. If there is no database connection available, you can use pivot tables to create list for the different dimensions and then use lookup formulas like match and index o display the data for your chart.

Issues in Table with Multi-Row Insert

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