Throw user defined Errors from within built in apex procedures

Hi all
The task at hand is I have a tabular form with add row button. On click of this button, the built in add row to a form type of process is called. The table in which this row is being added has some Foriegn key constraints and some other check constraints.
What I want is if during insertion in the table, if there is a foreign key voilation and the process fails, I should be able to throw a user defined exception.
And moreso, I want to throw this in the notification area and not the error page.
Any thoughts??
Regards
Shantanu Dhanuka

Hi Shantanu,
If you want to capture exceptions raised by the wizard created MR* processes, you have to complete replace this processes with your own processes where you do the insert/update/delete. Don't forget to add the code for the optimistic locking.
About showing the error in the notification area, see my blog posting at
http://inside-apex.blogspot.com/2006/12/hacking-apex-error-page.html
which is able to do that.
Patrick
Check out my APEX-blog: http://inside-apex.blogspot.com
Check out the ApexLib Framework: http://apexlib.sourceforge.net

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Calling PL/SQL user defined functions from ODI Constraints

Hi All,
We are trying to call user defined PL/SQL functions from ODI. We are able to call them from ODI's User functions. But when we are trying to call them from ODI Constraints under Models, it is throwing an error 'ORA-00920 invalid relational operator'. Kindly let me know if anyone has faced the same issue and got the resolution for the same. Thanks in Advance.
Regards,
Abhishek Sharma

Hi Ace,
Thanks for the response, the same error was coming in operator also.
I am able to call PL?SQL user defined functions from ODI Constraints. We have to first call ODI User functions from the ODI constraints as we cant call PL/SQL function (compiled in database) directly.
From the ODI User functions, we can then call the PL/SQL functions.
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How do you use user defined error messages in Value Help?

Hi,
I'm currently working on a Modifiable Value Help Selector in Web Dynpro Java, and I want to use a user defined error message when I validate the values entered by a user. Currently, it's returning its default error message ("Character <string> does not match...").
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Hi Angelo,
I am not sure why message area is showing both Custom and inbuilt messages but you can try the following:
i guess you must be using reportContextAttribute exception for showing Error messages on the input fields as well.in that case you can disable the message area so messages will appear only on the Context level ie; on input fields.
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Is there a LabView example in the use of user defined error codes?

Specifically, I have a VI that tests four arrays of data against various high/low limits. I have pass/fail outputs for 18 tests. I'd like to combine these into an 'error out' cluster with appropriate error codes and messages, for which I've created an x-errors.txt file.
My first question must be trival - how do I just set the 'status' bit of the error stream to let the general error handler then look up the error desription from the file?
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Mike
Mike Evans
TRW Conekt
N.I. Alliance Member, UK
http://www.Conekt.net

There is no example program. There is extensive help on how to do this. Here's the basics.
1) There are two ways to define user error codes in LV6.1. If you are using LV6.0 or earlier, only one method is possible.
2) The 6.0 method involves wiring arrays of error codes and arrays of error code strings to the General Error Handler.vi. These codes will be used to explain any error code which is undefined in LV's internal error code database. Error codes reserved for users which are guaranteed not to be used by NI are from 5000 to 9999.
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he Index tab, type
"user-defined error codes, in text files"
(without the quote marks)
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5) The attached demo is written in LV6.0.
Attachments:
Error_Demo.vi ‏37 KB

Calling User Preference event from within portlet

Not sure if anybody else has looked at this but we are in the process of rolling out a new G6 Portal and on a number of portlets want to take advantage of the ability to turn off the portlet header. However in doing so you loose access to the inbuilt support for providing access to the User Preference, if one has been defined as part of the portlet definition. This is relevant on a number of portelts that we want to migrate to the new G6 portal.
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Hey Ross,
I just realized I have to do the same thing on a very limited scale (3-5 portlets).
SO I just wrote a little bit of (shoddy) code to show community preferences based on group membership.
It works for me, but I get the feeling your looking for something like communityactionsdata geared toward portlets, which unfortunately I dont think exists. If you put it in as an enhancement request then support will contact you to discuss your options.
Here is the code that I'm using for now:
<pt:standard.choose>
<pt:standard.when pt:test="stringToACLGroup('group=1,755,760;').isMember($currentuser)">
<immg border="0" src="htttp://localhost/imageserver/plumtree/portal/public/img/action_portlet_edit.gif">
</pt:standard.when>
</pt:standard.choose>
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edited to prevent the forum from trying to use the code I provided
Message was edited by:
geoffgarcia

Is there a range of error codes reserved for user defined error codes?

I would like to create my own error codes for a CVI dll but I want to make sure I don't use error codes already defined for something else. Is there a range reserved for such use?
Samee thing for warnings (errorcode > 0)
Thanks

I have never found a positive mention of a "safe" range of error codes available for user-defined error conditions, but I can suggest you some source of informations.
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Second, GetGeneralErrorString () is a function that can be used to trap errors of the following libraries with a unique error function:
User Interface Library
Easy I/O instrument driver
Toolbox instrument driver
ActiveX Library
DIAdem Connectivity Library
.NET Library
DataSocket instrument driver
Network Variable Library
Real-Time Utility Library
TDM Streaming Library
UDP Support Library
This means that the error codes from this libraries do not overlap, so you could derive from its code some ranges not used by these libraries.
Nevertheless, there is not a single function for error trapping: every library has its proper list of error codes and a function to decode them in human readable form, andthere is no guarantee that these ranges does not overlap. It's up to you to trap errors from every function in the proper way.
Proud to use LW/CVI from 3.1 on.
My contributions to the Developer Zone Community
If I have helped you, why not giving me a kudos?

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this is a part of my code:
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first of all u will create a paramlist
then add_paramter to this list
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Jenny ([email protected]):
Hi!I am trying to launch an existing report from a form then spool it into a PDF file. I have been successful in passing the report properties using SET_REPORT_OBJECT_PROPERTY built-in and I am also able to launch the report using RUN_REPORT_OBJECT built-in. My problem is, I cannot seem to pass the user defined parameters from my form to the report eventhough I am using the same variable names.
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v_rep := RUN_REPORT_OBJECT(repid);
Hope you can help me soon. Thanks!<HR></BLOCKQUOTE>
null

Page process: user defined error-message

hi to everyone!
i want to display a user-defined error-message, if for example a select in an anonymous PL/SQL block returns more than one row. i tried it with an user defined exception, but i get allways the success message... how can i do that?
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bye,
christian

Hi,
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User defined error management in variance calculation

Dear Expert,
I would like to change the message type for some messages in variance calculation. Path: IMG/product cost controlling/cost object controlling/product by order/manufacturing order/periodic processing. According to IMG documentation, the message type can be changed here. But I failed to edit the message and it seems not modifiable. Can anyone reply on this? Thanks!
BEST REGARDS
Maggie
Edited by: Qin Ou on Oct 27, 2009 6:36 AM

Hi,
I am able to change the message is the IMG Path:
IMG/product cost controlling/cost object controlling/product by order/manufacturing order/ User defined Error Management /
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Hi,
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The maximum error number in sysmessages:
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ON ASE 15.0.3
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19975
ON ASE 15.7
select max(error) from master.dbo.sysmessages
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19999

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There actually already exist two such families of messages, one called "errors" and the other called "messages". You can see this when configuring a shared memory dump, both are possible dump conditions. "Errors" show up in the errorlog displaying the message number, severity, and a state value, while "Messages" just display text and support has to look up the associated message number in the ASE sourcecode. (Not all text messages in the log are actual messages like this, some are just text that gets printed that one can't configure a memory dump on.)
Cheers,
-bret

How to handle user defined exception from C#?

Hi:
I have some PL/SQL code that will throw a user defined exception if certain conditions are met. How do I handle user defined exceptions if this procedure/function is being called from C#? C# can handle a normal Oracle SQL error (e.g. ORA-XXXX) because they are defined in the proper class, but how do I get it to know about my user defined exception? Does anyone have any links to examples of doing this?
Thanks.

Hi Gaff,
Is there a particular problem you're having doing this? It works as normal for me...
Cheers
Greg
PLSQL
=========
create or replace procedure throwsomething as
begin
raise_application_error(-20001,'kaboom');
end;
ODP
=====
    class Program
        static void Main(string[] args)
            using (OracleConnection con = new OracleConnection())
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========
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Return User Defined Exceptions from SP

Hi,
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Is your question how to return a custom exception from PLSQL? You'd use RAISE_APPLICATION_ERROR for that, and yes it would propagate via ODP to the calling application.
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begin
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Throw user defined Errors from within built in apex procedures

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