Validating numeric value in a filename

I have a file and the filename should be like ABC_12345_RES_20150410.txt and i have to validate the filename.I am facing problem in validating the numeric value which can change and its length also can change.
I am using the following expression to validate whether its the numeric value /not:
(DT_I4)(SUBSTRING( @[User::FileName] ,FINDSTRING( @[User::FileName] ,"_", 1)+1, FINDSTRING( @[User::FileName] ,"_", 2)-FINDSTRING( @[User::FileName] ,"_", 1)-1)) == (DT_I4)(SUBSTRING( @[User::FileName]
,FINDSTRING( @[User::FileName] ,"_", 1)+1, FINDSTRING( @[User::FileName] ,"_", 2)-FINDSTRING( @[User::FileName] ,"_", 1)-1))
This statement is failing the package when i am entering a character instead of digit.. But i don't want the package to fail rather i just want to log the exception in this case.
Is there any other way to validate the numeric Value?
Many Thanks in Advance!

Thanks a ton Martin for your advice.
I can do that but Actually the conversion is failing.. its giving error that cannot convert to (DT_I8). M looking for any other way to validate the numeric value.

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Validation on numerical values in webdynpro

Hi Friends,
I am facing one probelem with validation on numerical values. In my application there is a scenario.. Input fields are Mibile number and email id.
when i enter the invalid phone number like : 09988wertyy    it should throw the error like enter only numerical values.
In the same way i should validate the email id with format .. like ratnakar.alwala@ accenture.com. if it is in valid then it should throw the error.
could any body please give me the approach.
Thanks and Regards
Ratnakar reddy alwala

Hi Ratnakar,
For number validation, what I did was :
1. Bind a context variable (Say Number) of type String to the input Field
2. At the time of submission, do the following
String num=wdContext.xurrentContextElement().getNumber();
if(num!=null)
try
        double num=new Double(amnt.trim()).doubleValue();
catch(NumberFormatException exc)//IF AMOUNT ENTERED IS NOT VALID
   wdComponentAPI.getMessageManager().reportException("Invalid Number",true);
Regards
Fahad Hamsa

Validation To check numeric value

BEGIN
IF :P3_TOTAL_AMOUNT >= :P3_NET_AMOUNT THEN
RETURN TRUE;
ELSE
RETURN FALSE;
END IF;
END;
The function returning boolean should compare total amount and net amount and through error if it less than net amount.
It works fine when the value of TOTAL amoun =365 and value of net amount = 364*(if it is all numeric value and no zero behind it)*
But the problem is
when is use Total amount = 9 and net amount = 100 (It doesnt works becuse it just takes 1 from the net amount and eliminates the zeros behind the 1(100) and it doesnt comes up with a error after validation )
Is there any one who can help me with this
Thanks,
Hary

Lev,
I'm not sure I follow. If you use to_number with a format mask and the user doesn't follow your mask, you'll get an error:select to_number('1000','999G990') from dual;This throws an "ORA-01722: invalid number" exception. That's why I say to try calling to_number without a format mask first, to handle the trivial case of the user not putting in the grouping separators (or whatever else is involved in your format).
You could, of course, put in a validation to make sure that the number follows the format you're expecting before you convert it (either for further validation, as in the original post, or for processing), but then you have multiple places where the format mask is specified--not to mention the annoyance for users when they put in a number only to be told that they need to use the appropriate grouping separators as well. My solution uses the data dictionary to get the format mask assigned to the page item and feeds that to to_number; if I change the page item's format mask, all of my processes automatically handle the new format. Because of the extra lookup, it's slightly slower than hard-coding the format mask, but that should be minimal as long as you don't use it in a where clause.
-David

Validation of numeric value precision and scale

Hi all,
Iam using ADF with EJBs.
I have one inputText field that will accept numeric values (of java.lang.Double type). Due to database constraints I want to validate the input value on its precision and scale.
I put an f:convertNumber tag under the inputText and set the MaxIntegerDigits and MaxFractionDigits properties with the desired values.
I also set the ApplyValidation property of the corresponding attribute in the pagedef file. However no validation worked.
I made the same test with af:ConvertNumber with no result too.
I know that with BC4J it is easy to set such constraints at the entity level.
Is there any neat way to set validation or I need to write code in the backing bean?

<af:convertNumber> works fine for me. see the following code
<af:inputText id="it1">
<af:convertNumber type="number" minFractionDigits="2" maxIntegerDigits="4" maxFractionDigits="2"/>
</af:inputText>
Another possible solution with regular expression
<af:inputText id="it3" value="9999.99">
<af:validateRegExp pattern="\[0-9\]\[0-9\]\[0-9\]\[0-9\].\[0-9\]\[0-9\]"/>
</af:inputText>
regards
srini
Edited by: sangara on Jan 17, 2010 9:53 PM

Popup Key LOV, NULL and "Invalid numeric value undefined for column"

Hello.
I've created an item based on database column of NUMBER type and set the following properties:
Display As = Popup Key LOV (Displays description, returns key value)
List of values definition=select 'display_value' d, 1 r from dual
Null display value=%
Null return value=
Display Null=Yes
When I select "%" in the LOV and try to apply changes to database I get error:
ORA-20001: Error in DML: p_rowid=1781, p_alt_rowid=N1, p_rowid2=, p_alt_rowid2=. ORA-20001: Invalid numeric value undefined for column N2
Error Unable to process row of table TTT.
If I set Display As = Select List, all works fine. But I need Popup Key LOV.
Could anybody help me?
I use Application Express 2.2.1.00.04

Hi all,
I did my homework and solved this issue. First I would like to thank Patrick Wolf for the invaluable help he gives out on thread Re: Null value handling in LOVs The code presented here is just a minor edit to his code, but an essential one when dealing with Popup Key LOV items.
Here's what I did:
1. Create an Application Process.
Name: RemoveNulls
Sequence: 0
Point: On Submit: After Page Submission - Before Computations and Validations
Process Text:
BEGIN
    FOR rItem IN
      ( SELECT ITEM_NAME
          FROM APEX_APPLICATION_PAGE_ITEMS
         WHERE APPLICATION_ID   = TO_NUMBER(:APP_ID)
           AND PAGE_ID          IN (TO_NUMBER(:APP_PAGE_ID), 0)
           AND LOV_DISPLAY_NULL = 'Yes'
           AND LOV_DEFINITION   IS NOT NULL
           AND LOV_NULL_VALUE   IS NULL
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            Apex_Util.set_session_state(rItem.ITEM_NAME, NULL);
        END IF;
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END;Error Message: #SQLERRM#Condition: None
2. You should be able to submit a Popup Key LOV with a NULL value now.
Once again, THANKS, Patrick! You rock! I'm seriously thinking of trying ApexLib now :)
Georger

Creating a sound from an array of numeric values and playing it on speakers

How do I create take a sound I have stored as an array (or could be an arraylist if needed) of numeric values (at the moment as doubles) whiten my program and output it to speakers? I am using blueJ.
for example (0, 0.1, 0.4, 0.8, 0.9, 1, 0.8, 0.6, 0.3, 0.1, etc...) would be a very high frequency sin wave.
Edited by: alan2here on Feb 6, 2008 11:28 AM

I stumbled upon this thread with a question somewhat related:
I've recorded a wave file from microphone. But what I would like is an array of numbers in the same way alan said. I'm also working on my own project involving signal processing (i'm trying to do speech recognition).
I can't really find a nice way of getting that array of numbers. I've tried to find out how wave file stores it's data, and directly read from the File object, but i figured there should be an easier way...
I used this code to read the sound:
*     SimpleAudioRecorder.java
*     This file is part of jsresources.org
* Copyright (c) 1999 - 2003 by Matthias Pfisterer
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright notice,
*   this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
*   notice, this list of conditions and the following disclaimer in the
*   documentation and/or other materials provided with the distribution.
|<---            this code is formatted to fit into 80 columns             --->|
import java.io.IOException;
import java.io.File;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.TargetDataLine;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.AudioFileFormat;
public class SimpleAudioRecorder
extends Thread
     private TargetDataLine          m_line;
     private AudioFileFormat.Type     m_targetType;
     private AudioInputStream     m_audioInputStream;
     private File               m_outputFile;
     public SimpleAudioRecorder(TargetDataLine line,
                         AudioFileFormat.Type targetType,
                         File file)
          m_line = line;
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          m_targetType = targetType;
          m_outputFile = file;
     /** Starts the recording.
         To accomplish this, (i) the line is started and (ii) the
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          m_line.stop();
          m_line.close();
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         the file is closed and 'AudioSystem.write()' returns.
     public void run()
               try
                    AudioSystem.write(
                         m_audioInputStream,
                         m_targetType,
                         m_outputFile);
               catch (IOException e)
                    e.printStackTrace();
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          if (args.length != 1 || args[0].equals("-h"))
               printUsageAndExit();
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             to store to.
          String     strFilename = args[0];
          File     outputFile = new File(strFilename);
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             is hardcoded here. We use PCM 44.1 kHz, 16 bit signed,
             stereo.
          AudioFormat     audioFormat = new AudioFormat(
               AudioFormat.Encoding.PCM_SIGNED,
               44100.0F, 16, 2, 4, 44100.0F, false);
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             If requesting the line was successful, we are opening
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          TargetDataLine     targetDataLine = null;
          try
               targetDataLine = (TargetDataLine) AudioSystem.getLine(info);
               targetDataLine.open(audioFormat);
          catch (LineUnavailableException e)
               out("unable to get a recording line");
               e.printStackTrace();
               System.exit(1);
          /* Again for simplicity, we've hardcoded the audio file
             type, too.
          AudioFileFormat.Type     targetType = AudioFileFormat.Type.WAVE;
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             contains the logic of starting and stopping the
             recording, reading audio data from the TargetDataLine
             and writing the data to a file.
          SimpleAudioRecorder     recorder = new SimpleAudioRecorder(
               targetDataLine,
               targetType,
               outputFile);
          /* We are waiting for the user to press ENTER to
             start the recording. (You might find it
             inconvenient if recording starts immediately.)
          out("Press ENTER to start the recording.");
          try
               System.in.read();
          catch (IOException e)
               e.printStackTrace();
          /* Here, the recording is actually started.
          recorder.start();
          out("Recording...");
          /* And now, we are waiting again for the user to press ENTER,
             this time to signal that the recording should be stopped.
          out("Press ENTER to stop the recording.");
          try
               System.in.read();
          catch (IOException e)
               e.printStackTrace();
          /* Here, the recording is actually stopped.
          recorder.stopRecording();
          out("Recording stopped.");
     private static void printUsageAndExit()
          out("SimpleAudioRecorder: usage:");
          out("\tjava SimpleAudioRecorder -h");
          out("\tjava SimpleAudioRecorder <audiofile>");
          System.exit(0);
     private static void out(String strMessage)
          System.out.println(strMessage);
}Daniel

Can one assign a numerical value to a variable?

Hi All,
Good afternoon,
I am currently working on a form that has strings as values in 2 different listboxes, and depending on what is selected a message pops up. Here is the script I wrote, but it does not seem to work right
var a=aKlaclistbox.raWvalue=="SSK";
var b=bZlaslistbox.raWvalue=="SGT";
a.value=1;
b.value=2;
if(a > b){
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Thanks
v/r
Tammy

There's probably a better way of doing this, as, depending on how many ranks you have, it could get cumbersome. Like using an array or something like that but not sure how to accomplish that.
If there are a lot of ranks to compare I think I'd suggest reworking things so that you can use the numeric value of the list box, it will be much easier in the long run.
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var a=aKlaclistbox.raWvalue=="SSK";
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var a;
var b;
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Hi All
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Hi Banerjee,
Create a String/int/long Context variable and point it to UI Input element.Do the validation for correct input value. once the validation is succesful assign that value to RFC BigDecimal variable by Explicit casting.
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How do I keep fields hidden until a numeric value is entered including 0

I have a field that keeps other fields hidden until a numeric value is entered into it...
My current script is:
var showHide = event.target.value > 0
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this.getField("Amended BudgetRow1").display = showHide;
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I use the custom JavaScript validation of:
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DBMS_LOB.LOADFROMFILE causes numeric value error

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Hope this helps others searching for information on this - I have spent some painful hours working this out!
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How to restrict the user to enter only numeric values in a input field

How to restrict the user to enter only numeric values in a input field.
For example,
i have an input field in that i would like to enter
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reply ASAP

Hi Venuthurupalli,
As valery has said once you select the value to be of type integer,once you perform an action it will be validated and error message that non numeric characters are there will be shown. If you want to set additional constraints like max value, min value etc you can use simple types for it.
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I still have an H140 in the cupboard. As I recall that needs leading zeros on filenames to sort properly. Since both WMP & iTunes include leading zeros it was never really an issue. THE Rename should be able to extract the track numbers from part of the filename and is also able to generate counters, along with the usual functions of setting tag fields from part of the file and/or folder name. Unfortuanetly THE Rename is still on the complicated side - I suspect there would be no easy way to lump together the variety of options that it has while keeping it very simple.
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tt2

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The object field that the javascript code is contained in is called: NumericField4 (a.k.a. New Job Grade)
The subform that I want to become visible when a number greater than 22 is input into NumericField4, is called Approval23.
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Thread:
http://forums.adobe.com/message/1982919
PDF in thread with the javascript code:
http://forums.adobe.com/servlet/JiveServlet/download/1981437-8059/Sample_SW.pdf
I’m pretty sure I’m just missing one little thing that’s throwing everything off!
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Hi,
The following works in the exit event of the numeric field, where the language is set to JavaScript:
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Here is your form: https://acrobat.com/#d=3gRNt6WBY2bE0K7en4CnSA
Hope that helps,
Niall

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textField.setDocument( new TextFieldVerifier() );
class TextFieldVerifier extends PlainDocument {
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