Re: [displaytag-user] uid: row object not updated?

Thu, 10 Aug 2006 05:55:51 -0700

Thanks for your help again, Miro!

I've tried using a table decorator and it offers a way to solve my problem indeed.  I would have preferred the reusability of columns decorators, but I can live with the little extra work...

On a purely intellectual level, I would have liked to know if I was doing something wrong or if I revealed some kind of bug, but I'm glad to have a way to keep on working.

Cheers

Stéphane

On 8/10/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
That's strange.
Cannot you use a decorator for the table instead ?
Then you can implement the interface TableDecorator, which has a method getCurrentRowObject().
 
regards,
Miro
-----Original Message-----
From: Stéphane Josephy [mailto:[EMAIL PROTECTED]]
Sent: donderdag 10 augustus 2006 13:57

To: displaytag-user@lists.sourceforge.net
Subject: Re: [displaytag-user] uid: row object not updated?

This is what I first believed too, but after some tests, I've noticed that when I don't specify a property attribute in my <display:column> tag, the Object inSjc is null. 
It is only filled by a property of the current row object when my <display:column > tag has a property attribute set.

Unfortunately for me, I do need more than 1 property of my object, so I need to get the current object as a whole, not just a property.
This is why I think I have to rely on UID to get the whole current row object.

I think I have understood something wrongly, but I really can't put a finger on it...

Stéphane


On 8/10/06, [EMAIL PROTECTED] < [EMAIL PROTECTED]> wrote:
oh, yes. you're right. I hadn't noticed that it is deprecated.
Anyway, I think the object you want is the first parameter of the method:
 
public Object decorate(Object inSJC, PageContext inPc, MediaTypeEnum 
inMte) throws DecoratorException
 
In the javadoc says that it is the "object to decorate".
regards,
Miro
-----Original Message-----
From: Stéphane Josephy [mailto:[EMAIL PROTECTED]]
Sent: donderdag 10 augustus 2006 11:43
Subject: Re: [displaytag-user] uid: row object not updated?

Thanks for your help.  However, I don't implement ColumnDecorator because it is apparently deprecated in DisplayTag 1.1.
I implement the DisplaytagColumnDecorator instead, as advised in the javadoc, which also has a decorate method, with the signature I mentioned.

Perhaps my problem would work with ColumnDecorator, but I'm not too hot about using a deprecated method...


Stéphane

On 8/10/06, [EMAIL PROTECTED] < [EMAIL PROTECTED]> wrote:
 
Hi,
 
do you implement the interface "ColumnDecorator" ?
I guess not because the signature of your decorate method does not match the signature of the decorate method of the ColumnDecorator.
If you use that interface, the object representing the current row is given as argument to the decorate.
 
 
regards,
Miro
-----Original Message-----
From: Stéphane Josephy [mailto:[EMAIL PROTECTED]]
Sent: donderdag 10 augustus 2006 11:11
To: displaytag-user@lists.sourceforge.net
Subject: [displaytag-user] uid: row object not updated?

Hi all 
 
I'm trying to build a table from an array of StartJobCard, an in-house complex class.
I use DisplayTag 1.1 and JBOSS 4.0.2.

It goes like this: 

<display:table name="startJobCards" uid="currentStartJobCard"> 
<display:column decorator="my.package.decorator.StartJobCardDecorator" /> 
</display:table> 
 
As I understand it, the uid attribute allows me to get the object in the current row, using PageContext. 
 
So, in my decorator, I do this: 
 
+++++ 
public Object decorate(Object inSJC, PageContext inPc, MediaTypeEnum 
inMte) throws DecoratorException { 
String result = ""; 
Object sjc = inPc.getAttribute("currentStartJobCard"); 
if (sjc != null) { 
if (!(sjc instanceof StartJobCard)) { 
result = sjc.toString(); 
} else { 
result = findStatus((StartJobCard) sjc, inPc); 
} 
} 
return result; 
} 
 
+++++ 
inPc.getAttribute("startJobCard") 'almost' works, in the sense that I get a StartJobCard object indeed. I was happy, until I noticed that the object wasn't actually updated, and it was the same one for every row... (i.e., the object I get is always the last one from my array of StartJobCard objects. 
 
Am I understanding the whole 'uid' thing correctly? If not, do you see a workaround, to get current row object in my decorator? 

 
Many thanks in advance, and I hope I've been clear enough. 
 
Stéphane

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