You are viewing a plain text version of this content. The canonical link for it is here.

Posted to users@tapestry.apache.org by Martin Carel <ma...@pricerunner.com> on 2006/02/02 10:58:34 UTC

contrib:Table : advices requested

Hi folks!

I'm using the contrib:Table for the first time. I'm using the source and 
columns parameters (and therefore not the tableModel parameter).

My source is a List of DOs, where each DO contains some fields (Date, 
double, int, etc.) with getters.

--

Q1: My table does show up as expected, with the page navigation system. 
But when I'm trying to change the page, I have this error:

Failure invoking listener method 'public void 
org.apache.tapestry.contrib.table.components.TablePages.changePage(org.apache.tapestry.IRequestCycle)' 
on $TablePages_302@12fe00a[Results/resultsTable.tablePages]: 1

and that's an ArrayIndexOutOfBoundsException: 1.

I have a similar error when I'm trying to sort a column. It really does 
sound easy to solve, but I'm stuck.

--

Q2: I have a column which displays a price. So quite naturally the field 
in my DO is a double. I want a string in front of my double, so I 
figured I needed to have a column with a custom ColumnEvaluator. 
Something like this:

    public ITableColumn getPriceColumn() {
        SimpleTableColumn priceColumn = new SimpleTableColumn("priceId",
                "Price", new PriceColumnEvaluator(), true);
        return priceColumn;
    }

    private static class PriceColumnEvaluator implements 
ITableColumnEvaluator {    
        public Object getColumnValue(ITableColumn objColumn, Object 
objRow) {
            DO row = (DO) objRow;
            String output = row.getCurrency() + " " + row.getPrice();
            return output;
        }
    }

However, I suspect my price sorting does not work anymore because now 
the data type for my price column is a String (since my Evaluator 
returns a String).  I was not comfortable with doing this formatting 
thing (adding the currency sign) in my evaluator in the first place, 
since it was not "pure data" stuff. Would you have implemented it elsewhere?

Related to this, I will need another column in which I'll have to 
display a little picture (which will be a link) and a few other things. 
Is using a customColumnEvaluator the preferred way to do it?

Again, any hints appreciated.

/Martin


---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-user-help@jakarta.apache.org

Re: contrib:Table : advices requested

Posted by Daniel Lydiard <dl...@hotmail.com>.

I derived my code from the examples found here:

http://weblogs.java.net/blog/johnreynolds/archive/2004/10/learn_by_teachi_1.html

I didn't do the model initialization the same way he did, but it should give 
you a good idea on how to use a custom ITableColumnModel and 
IBasicTableModel.


----- Original Message ----- 
From: "Andreas Bulling" <sp...@phoenix.hadiko.de>
To: "Tapestry users" <ta...@jakarta.apache.org>
Sent: Friday, March 03, 2006 3:48 AM
Subject: Re: contrib:Table : advices requested


> Hi Daniel,
>
> would you mind to provide some example code for your ITableColumnModel/
> IBasicTableModel? Thanks a lot if this is possible!
>
> Sincerly,
>  Andreas
>
>
> On 02. Feb 2006 - 10:59:16, Daniel Lydiard wrote:
> | They way I got mine to work (I think my thread was the one you were
> | referring too) was initialize the table in pageAttached() and used 
> @Persist
> | for the source/column getters.
> |
> | So something like:
> | @Persist
> | public abstract ITableColumnModel getColumns()
> | public abstract void setColumns(ITableColumnModel foo)
> |
> | @Persist
> | public abstract IBasicTableModel getTableModel()
> | public abstract void setTableModel(IBasicTableModel bar)
> |
> | Then in pageAttached (that's what I did) {
> |  setColumns(new Foo());
> |  setTableModel(new Bar());
> | }
> |
> | You could also initialize in some method like "activatePage" or whatever
> | and have a Link listener called the method to initialize the data.
> |
> | I dunno if this is the proper way of doing things (I fairly new to
> | Tapestry), but it works for me with caching/no-caching modes.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-user-help@jakarta.apache.org

Re: Tacos ajax direct link

Posted by Jesse Kuhnert <jk...@gmail.com>.

It's a tacos limitation...Tapestry was never written with this requirement
being known :) It will be fixed ~hopefully~ in 4.1, and definitely in tap5.

On 3/3/06, Daniel Lydiard <dl...@hotmail.com> wrote:
>
> When i click on an AjaxDirectLink, I'm noticing in my log file that the
> whole page is being re-rendered in the background, then the small
> component
> i told AjaxDirectLink to update will update.
>
> So everything works, it just seems inneffecient, especially when it's
> re-rendering my contrib:Table component when clicking on an Ajax link.
>
> Am i doing something wrong, or is this more of a Tapestry limitation?
>
> Thanks.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>
>

Re: Tacos ajax direct link

Posted by Daniel Lydiard <dl...@hotmail.com>.

I have another quick question.

I have an AjaxDirectLink which can show/hide a div which contains form input 
components.  If the form inputs are visible and I then hide the box 
containing the form inputs then submit the form (regular tapestry submit)  I 
get null pointer errors everywhere, most likely because tapestry was 
expecting the components to be there.

Is there a good way around this?  The stack trace I get is pure tapestry 
engine calls and has nothing to do with my own code (not one reference to 
any of my packages)...

I guess I could always just set the div to hidden (via css), but the purpose 
was to save rendering time by not rendering the components at all when 
appropriate.

Thanks.

BTW keep up the work on Tacos, I'm really liking it, and it's very easy to 
use :)

----- Original Message ----- 
From: "Daniel Lydiard" <dl...@hotmail.com>
To: "Tapestry users" <ta...@jakarta.apache.org>
Sent: Friday, March 03, 2006 10:53 AM
Subject: Tacos ajax direct link


> When i click on an AjaxDirectLink, I'm noticing in my log file that the 
> whole page is being re-rendered in the background, then the small 
> component i told AjaxDirectLink to update will update.
>
> So everything works, it just seems inneffecient, especially when it's 
> re-rendering my contrib:Table component when clicking on an Ajax link.
>
> Am i doing something wrong, or is this more of a Tapestry limitation?
>
> Thanks.
>
> 

---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-user-help@jakarta.apache.org

Tacos ajax direct link

Posted by Daniel Lydiard <dl...@hotmail.com>.

When i click on an AjaxDirectLink, I'm noticing in my log file that the 
whole page is being re-rendered in the background, then the small component 
i told AjaxDirectLink to update will update.

So everything works, it just seems inneffecient, especially when it's 
re-rendering my contrib:Table component when clicking on an Ajax link.

Am i doing something wrong, or is this more of a Tapestry limitation?

Thanks.

---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-user-help@jakarta.apache.org

Re: contrib:Table : advices requested

Posted by Andreas Bulling <sp...@phoenix.hadiko.de>.

Hi Daniel,

would you mind to provide some example code for your ITableColumnModel/
IBasicTableModel? Thanks a lot if this is possible!

Sincerly,
  Andreas


On 02. Feb 2006 - 10:59:16, Daniel Lydiard wrote:
| They way I got mine to work (I think my thread was the one you were 
| referring too) was initialize the table in pageAttached() and used @Persist 
| for the source/column getters.
| 
| So something like:
| @Persist
| public abstract ITableColumnModel getColumns()
| public abstract void setColumns(ITableColumnModel foo)
| 
| @Persist
| public abstract IBasicTableModel getTableModel()
| public abstract void setTableModel(IBasicTableModel bar)
| 
| Then in pageAttached (that's what I did) {
|  setColumns(new Foo());
|  setTableModel(new Bar());
| }
| 
| You could also initialize in some method like "activatePage" or whatever 
| and have a Link listener called the method to initialize the data.
| 
| I dunno if this is the proper way of doing things (I fairly new to 
| Tapestry), but it works for me with caching/no-caching modes.

---------------------------------------------------------------------
To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tapestry-user-help@jakarta.apache.org