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Re: Access a private variable?
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Re: Access a private variable?


  • Subject: Re: Access a private variable?
  • From: Sacha Mallais <email@hidden>
  • Date: Thu, 14 Jul 2005 16:48:39 -0700

On Jul 14, 2005, at 3:57 PM, Alex Johnson wrote:

Hi again --

On Jul 14, 2005, at 5:12 PM, Sacha Mallais wrote:

WODisplayGroup.allObjects().count();

On Jul 14, 2005, at 5:17 PM, Ricardo Strausz wrote:

Isn't it displayGroup.allObjects().count()??


Wow, thank you both for replying so quickly! Let me add some more context to better explain my issue:

Starting with a WODisplayGroup that is initialized via the WOO file, I call:

    displayGroup.fetch();

This fetches about 350 objects from the database. In order to make the results more user friendly, I set numberOfObjectsPerBatch to 25 for my display group:

    displayGroup.setNumberOfObjectsPerBatch( 25 );

When I then call:

displayGroup.queryMin().takeValueForKey ( someTimestampInThePast, "dateCreated" );
displayGroup.qualifyDisplayGroup();


This trims down the list of objects to 60 objects (which makes 3 batches). I would like to display that number (60) somewhere on my page. However, these are the results I get:

displayGroup.allObjects().count() 350 (the total number of fetched objects)

displayGroup.displayedObjects().count() 25 (the number that fit on that page), or 10 (for the last page)

displayGroup.setNumberOfObjectsPerBatch(0);
displayGroup.displayedObjects().count() 60 (the number of qualified objects -- this is what I want)

That seems like a bug to me. Maybe that's why I still don't use display groups. :-)



I would like to be able to get the third value without temporarily setting numberOfObjectsPerBatch to 0, because that has the side effect of erasing the selectedObjects() and currentBatchIndex(). Thus, I am wondering if it's possible for me to access the WODisplayGroup's private variables to see if I can directly get the array of qualified objects.



On Jul 14, 2005, at 5:12 PM, Sacha Mallais wrote:


Does anyone know if it's possible to access an object's private variable?

Yes, it is.

Any sample code you can point me to?

No, but it is straightforward: create a java.lang.reflect.Field and call setAccessible(true) and get() on it.



sacha


-- Sacha Michel Mallais - 400 lb. chimp Global Village Consulting Inc.: http://www.global-village.net/ Choke on that, causality! -- the Professor, "Futurama"

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  • Follow-Ups:
    • Re: Access a private variable?
      • From: Ricardo Strausz <email@hidden>
    • Re: Access a private variable?
      • From: Robert Walker <email@hidden>
References: 
 >Access a private variable? (From: Alex Johnson <email@hidden>)
 >Re: Access a private variable? (From: Sacha Mallais <email@hidden>)
 >Re: Access a private variable? (From: Alex Johnson <email@hidden>)

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