Possible to iterate attributes?

Question

Is it possible to iterate through the attributes of an object? Or is there a
better
solution for what I want to do?
I have a form for displaying a simple object, and am doing a
query-by-example
type search from this. Unfortunately it's easy to get the form full of 'N/A'
strings
and irritating to clear them, so I'd like to suppress them for the search.
I'd like
to do something like this:
for each attribute do
if attribute is a string or textdata then
if attribute value = 'N/A' then
set attribute value = ''
Any ideas?
Thanks
Chris
Chris Moseley at De Data Ltd
[email protected]
http://www.dedata.com.au
All private email to moz1@ihug please
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Answer 1

IBC
-----Original Message-----
From: Augusto Jun Devegili [SMTP:[email protected]]
Sent: Monday, July 05, 1999 4:19 AM
To: John Pianezze; Chris Moseley
Cc: [email protected]
Subject: RE: possible to iterate attributes?
At FORUM'99 there was a company which was selling a Reflection framework
(for discovering meta information on classes). Unfortunately I can't recall
its name... :-(
This is going to be solved with SynerJ, though ;-)
-----Original Message-----
From: John Pianezze [mailto:[email protected]]
Sent: Segunda-feira, 5 de Julho de 1999 05:59
To: Chris Moseley
Cc: [email protected]
Subject: RE: possible to iterate attributes?
We all wish !!! Smalltalkers can only laugh.
The class is the only unit in forte that supports any kind of
meta-information. In this case, it's minimal: you can get its class type,
and class type supports one method: AllocInstance().
sigh
What people tend to do to get around it is to build classes that represent
methods.
So for example you might have a class called ApplicationService, which
contains an array of ServiceMethod objects, and each method describes some
kind of operation.
You might define a constant in each method class to describe what it does,
like ServiceMethod.TRANSACTION_NAME, where TRANSACTION_NAME is some constant
string.
Then the only way to figure out how to 'call' the method is by brute force:
so you'l have a big-ass
if-then-elseif-then- elseif-then- elseif-then- elseif-then- elseif-then-
elseif-then-
block of code.
sigh
Alas, this is even how Forte's WebEnterprise maps HTML 'functions' to forte
functionality.
It's messy, but it's worth the effort !!
John Pianezze.
Security First Technologies
-----Original Message-----
From: Chris Moseley [SMTP:[email protected]]
Sent: Monday, July 05, 1999 4:18 PM
To: [email protected]
Subject: possible to iterate attributes?
Is it possible to iterate through the attributes of an object? Or is
there a
better
solution for what I want to do?
I have a form for displaying a simple object, and am doing a
query-by-example
type search from this. Unfortunately it's easy to get the form full
of 'N/A'
strings
and irritating to clear them, so I'd like to suppress them for the
search.
I'd like
to do something like this:
for each attribute do
if attribute is a string or textdata then
if attribute value = 'N/A' then
set attribute value = ''
Any ideas?
Thanks
Chris
Chris Moseley at De Data Ltd
[email protected]
http://www.dedata.com.au
All private email to moz1@ihug please
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive
<URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>