Restrict Special Characters in String Fields

Hello,
My Jdev version is 11.1.1.6 using ADF BC and ADF Faces as technology stack.
I have a requirement to restrict special characters, html tags as input in String/Varchar2 fields.
I have couple of thoughts that can be used in application but not sure which is the best approach:
1. Implement <af:validateRegExp pattern="regular Exp"> inside <af:inputText> component
2. Implement Entity based validator using Regular Expression
Apart from picking the best out of above two, I would like to know if there is a better way to implement this validation.
My application has custom framework extn classes and all Entities/View Objects extend those. Is there a possibility to implement this type of validation at some central place.
I would highly appreciate expert inputs here.
Thanks,
Jai

Hi,
the answer to your question is *"use both"*. The entity level would be enough but then would make people subniitting a request afte which they see an error The RegEx validator in ADF Faces handles problems on the client side and thus before a submit is sent to the server (where it then would be also checked using server side validation in ADF Faces). Why not using RegEx validation in ADF faces alone? Because there are potentially many views accessing your entity through view objects and if only one developer forgets the RegEx validator you would be screwed.
Frank

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Restricting special characters

Hi All
I am currently doing the payment extract interface program for the bank. The point here is that the bank doesn't allow some characters which are considered as special characters like (#,$,%,^,*,&) etc..In most of the information like vendor name and invoice numbers they are using these characters.
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Duplicate post see:
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Another way of doing it.
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Go to Solution.

MikeS81 wrote:
see the attached example.
I would allow a few more, e.g. 0 and 8 to allow editing of the entered string (backspace, cursor buttons, delete key, etc.).
Message Edited by altenbach on 11-21-2008 12:49 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
check_char_LV80MOD.vi ‏14 KB
FilterStringInput.gif ‏6 KB

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or
Create an object with the following syntax... It Works in SQL.
= REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE
(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE
(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE
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Restrict Special Characters in String Fields

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