[Newbies] set variables before initialize and write out files before exit

[Ron Teitelbaum]

Hi Joe,

I'm not sure in what context you mean.  Why wouldn't you run this in the
#initialize method?

JoeAccountingParser class>>configure
	InPath := '/Users/jja/Desktop/accountingfiles/'.
	OutPath := '/Users/jja/Desktop/accountingfiles processed/'.

JoeAccountingParser >>initialize
	self class configure.
	fileParser := FileParser new.
	fileParser inPath: self class InPath.
	fileParser outPath: self class OutPath.

JoeAccountingParser class >> process: aFile
	^(self new) process: aFile; yourself.
	 	

JoeAccountingParser process: aFile
	fileParser readThis: aFile.
	fileParser process.
	fileParser write.

This is a bit refactored and it uses the configure method I recommend to you
earlier.  This configure method could be anything including a method to read
an external file for details.

Solutions like a factory method pattern come to mind if you don't want to
use #initialize.

JoeAccountingParser class >> process: aFile from: inPath to: outPath

There is also Behavior #startUp and #shutDown on the class side.

See Smalltalk #addToStartUpList: #addToShutDownList:

These fire when an image is started or shutdown.  

I think a bit more explanation of what problem you are having is needed.

All the best,

Ron Teitelbaum 



> From: Joseph Alotta
> Sent: Friday, June 10, 2016 12:23 PM
> 
> Greetings,
> 
> My object needs to have some variables set before it can run the
initialize
> method and also it needs to have run an exit method.
> 
> f := FileParser new.
> f inPath: '/Users/jja/Desktop/accountingfiles/'.
> f readThis: 'rei mastercard.csv'.
> f process
> f outPath: '/Users/jja/Desktop/accountingfiles processed/'.
> f write.
> 
> 
> Is there a better way to do this?
> 
> Sincerely,
> 
> Joe.
> 
> 
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