Before commit

when does the before commit operation in ViewObjectImpl will invoke in ADF...Any one can give a sample code for using the same for inserting a value for a field in the ViewObject which is not displayed in JSP page
kindly Reply
Regards
Anitha

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Trying to set the entity attributes in before commit and get the following

i get the following error when i try to set the entity attributes before commit.
JBO-28202: Entities invalidated in beforeCommit(). Need to re-validate and post.
can somebody let me know, how to re-validate and post.

I Suggest you set its Attribute on EOImpl, override doDML, and before call super.doDML set your Attribute. There is a special reason to set Attribute on beforeCommit?
Best Regards

Encrypt value before commit

Hello,
I'm using Oracle JDeveloper 11g Release 2 (11.1.2.3.0).
I have a form that the user must enter some values, one of these values is a password. I need to pick up that value before commit and encrypt it. Actually the password is stored in the database without encyptation, just as the user entered it.
My application does not use adf security, and now it's too late to change everything.
Any idea that how can I fix this?
Thanks in advance!

Hello Shay!
Thanks a lot for your answer, I'm newby in ADF and I don't know how to do that. I think that the easiest option is to overwrite the doDML method.
I overwrite this method in the EOImpl and, now I have this:
     * Custom DML update/insert/delete logic here.
     * @param operation the operation type
     * @param e the transaction event
    protected void doDML(int operation, TransactionEvent e) {
        super.doDML(operation, e);
I have a method called encrypt(password), that return the password encrypted.
How can I set the new string to the password attribute when I update on database? I guess I have to insert this code before super.doDML(operation e);, is it?
if (operation == this.DML_UPDATE){
            // CODE HERE
Please can you help me with this? Thanks in advance!

Could i display data in VO before commit and re-query?

I have inserted some rows into ViewObject.i will display these rows before commit them.
The vo will be a temporary table.
how can i do it ? thanks ,best regards.

thanks . i have an idea.
first ,create a row ,and then insert this row.

How check value befor commit my form

hi master
sir
how check value befor commit my form if that value right than commit otherwise show message box and not save
please give me idea
thanking you
aamir

Have you not tried using When-Validate-Item Trigger.
Like if i have an Item Which can only take dates between sysdate and sysdate-3 your code in when-validate of the item should be
If :BlockName.ItemName NOT BETWEEN SYSDATE-3 AND SYSDATE THEN
MESSAGE('Pleaes Enter valid date);
RAISE FORM_TRIGGER_FAILURE;
END IF;
This will fire, and commit will fail.

DBWn and LGWR work before commit

" - Oracle has generated redo log entries in the redo log buffer of the SGA. The redo log record contains the change to the data block and the change to the rollback
block. These changes may go to disk before a transaction is committed.
- The changes have been made to the database buffers of the SGA. These changes may go to disk before a transaction is committed."
(c) Concepts 10g R.2
When this situation (write dirty blocks and redo entries befor commit) occurs? It is importantly for me to refer on official documentation, when this situations occurs.
Thanks,
Best Regards

915968 wrote:
" - Oracle has generated redo log entries in the redo log buffer of the SGA. The redo log record contains the change to the data block and the change to the rollback
block. These changes may go to disk before a transaction is committed.
- The changes have been made to the database buffers of the SGA. These changes may go to disk before a transaction is committed."
(c) Concepts 10g R.2
When this situation (write dirty blocks and redo entries befor commit) occurs? It is importantly for me to refer on official documentation, when this situations occurs.
no

"0" doesn't display before comma in float numbers...

Hi fellow APEX users,
Have you ever experienced this issue with float numbers in your APEX forms?
When I type float numbers between -1 and 1 in forms (e.g. 0,7 or -0,2), and after having submitted the form then reloaded it for editing, "0" doesn't display before the comma.
For example I got:
*,7* instead of *0,7*
-,2 instead of -0,2
etc.
If I look in SQL Workshop, I see the same (no "0") but I'm pretty sure that the value is properly recorded in the database.
The thing is that it's not very nice for the end users, as they can think the value is wrong.
Does anybody have a solution to display proper float numbers with "0" in the forms?
For info I use the NUMBER type.
Any help much appreciated!
Thanks,
Romain.
Edited by: romain.apex on Feb 5, 2012 8:30 PM

Hi Peter!
Of what type is your item? Display as text or do you use the item value for further computations.
If it is only for means of displaying the correctly formatted number, I'd change the item source to a query and would equip the desired column with a to_char function like:
select to_char(str_be_main, 'fm999G999G990D00') from yourtable where ...You could also use a post calculation computation and enforce the format there:
to_char(:P2027_YOUR_ITEM,'fm999G999G990D00')Maybe this helps!
Brgds,
Seb
Edited by: skahlert on 11.02.2011 07:53

Change item value before commit

Hello,
I have a form in which I issue an execute_query from a mouse click to retrieve database values from a data block onto a form. The user is then able to change the values of these items on the form and commit them via a button on the form. What I want to do is make sure that some of the values, based on another item in the block, are negative and if not, change them to a negative value. before the changes are commited. I can't seem to find the right trigger to accomplish this-- has anyone have an idea on how to do this?
Thanks in advance.
Jeff

Hi,
How about putting your code in :
1. Pre-Update or
2. When-Database-Record
[Block Level trigger]
The trigger text could be something like :
If (:block.col is > 0 ) Then
:block.col := :block.col * -1;
End If;
-- Shailender Mehta --

Unable to read changes before commit

I have a mix of insert and select statements for a particular transaction operation.
I need to insert to table 1 a set of five records. ie. five inserts to table 1.
Then i need to sum up a column in table 1, this may have certain records which were inserted recently and some might be older ones.
This sum needs to be inserted into another table 2.
In my code i maintain the sequence of inserting, fetching the sum and inserting. I confirm the sequence by giving System.out.println().
But since everything runs inside a container managed external transaction controller.
Even though i see the System.out.println's in proper sequence, the suming query is happening before.
At the end, i have Before JTS completion, followed by my insert sqls, followed by After JTS completion.
Clearly the problem is, the fetch is happening before i insert, in JTS.
So how do i make sure, that the fetch happens after my first insert.

I assume that you are using the TopLink UnitOfWork. The UnitOfWork defers committing all changes to the database until the commit (beforeCompletion in JTA), so any queries you perform will not see any of these changes until after the commit. It does this to optimize the commit, maintain referential integrity, avoid deadlocks, avoid holding pooled connections, etc.
You must either:
- perform the inserts and the sum query in two separate transactions
- compute the sum from the objects in memory
- use a database session and insertObject instead of a unit of work
To compute the sum in memory you may wish to use a conforming query in TopLink to query the new objects that have not yet been inserted to the database.
In the 10.1.3 release, there will be support for a non-deferred unit of work, and a writeChanges() unit of work API to write changes before the commit.

Preview oracle DML before commit

What's the best tool to give to a data entry clerk to allow them to preview the effect their DML statement may have before committing the transaction? In the past they've used MS access but we want to veer away from this.
Thank you.

Hi,
Sanj wrote:
What's the best tool to give to a data entry clerk to allow them to preview the effect their DML statement may have before committing the transaction? In the past they've used MS access but we want to veer away from this.I guess any tool that doesn't have autocommit on by default (better even : a tool with autorollback on exit !)
This way they can do their DML and check the effect in order to decide weither to commit or not.

Re: Query before commit

For my tests, I used the tutorial and didn't played with setIgnoreCache().
And indeed, my newly created objects are part of the query. As per the
code snipet, I create a new dog called "Medor". I add some code to print
the value of setIgnoreCache too, to see what the default value is... The
result of my creation+query without commit:
SetIgnoreCache:false
Dog Medor costs 80.0 dollars.
Dog Medor Jr costs 90.0 dollars.
Dog Binney costs 80.0 dollars.
Dog Odie costs 30.0 dollars.
Dog Rusty costs 25.0 dollars.
Dog Fido costs 50.0 dollars.
Dog Tasha costs 75.0 dollars.
Dog Fluffy costs 35.0 dollars.
Cheers,
Patrick Guillot
Versant France S.A.

thanks . i have an idea.
first ,create a row ,and then insert this row.

Help: Data validation before commit or move to next record

The form that I am working on allows data insert. It needs to have a feature to inform the end user for incomplete field(s) before commit_form or move to next record for updating. Please let me know how you would do it.
Thank you,
Jimmy

To prevent cursor movement out of a field in a When-validate trigger, all you do is Raise Form_trigger_failure;However, if the field is null and the user does not enter anything while tabbing through, or just clicking in then clicking somewhere else, the When-validate-item trigger does not run. You have to specifically check if the field is null in the When-validate-record trigger.

Unique constraint violation - Finding inserted row before commit

Hi,
I have a scenario something like that, where I need to insert a row to a table - contact, for different employees under different department. So I happen to insert same employee contact multiple times & do commit at the last if there is no contact in the table. How to find out if the same employee record is already inserted ?.
The unique constraints is on emp id + depatment id in the contact table. So I face the issue when i do the commit, it finds the same emp id + dept id contact has been inserted multiple times.
Please let me know how to handle it?
Regards,
Dhamo.

Hi
What is exactly what you want to achieve? Do you want to display a message to the user? Do you want to prevent it to post the contact if it already exists?
Regards

Model update validation in between wizard-style pages before commit

Dear All,
We have a number of wizard-style pages (generated by JHeadstart). We navigate between pages using a <af:singlestepbuttonbar> control. We'd like to be able to validate model updates when navigating (next) from one
page to the next, rather than having to wait till the Commit action on the last page.
The model validations should only be performed for model updates that are relevant for the current page being navigated from.
Any suggestions on how we can achieve this would highly be appreciated.
Kind regards,
Ibrahim

hi Ibrahim (user617110)
Since you say you are using JHeadstart, maybe you can get a better answer in this forum
JHeadstart
(tip : You can use "Your Control Panel" to make your name visible in forum posts.)
success
Jan Vervecken

Retrieving DbSequence Value Before Commit

Hello,
I'm creating a user registration page which is a flow of 3 pages (Each Page contains an ADF input form which corresponds to a DB table).
I am using DbSequence for generating the primary keys for three tables. I need to get the Dbsequence value after the first submit was done, in the second page as it is the foreign key to the second table. I'm getting a negative number , if I dont use commit in the first page.
I want to store the values of the three forms in the temporary tables , and commit only if the third form is successfully submitted.
Is it possible to do that?
Thanks.

I'm using UIX,ADF and Struts. This topic is being followed in
Insert Foreign Key From Already Available DBSequence Binding

Before commit

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