Re: T5 - HTML Templating

[Peter Dotchev]

Here is a comment from Howard on his blog.
http://tapestryjava.blogspot.com/2007/02/t5-screencast-4-beaneditform.html#comment-8358363237605682208
http://tapestryjava.blogspot.com/2007/02/t5-screencast-4-beaneditform.html#comment-8358363237605682208
 


Jan Vissers wrote:
 
 A very simple question (although I'm not to sure, whether everybody 
 feels that way).
 
 One of T4's key points, is the fact that basic HTML can be used and
 maintained by a web designer, and a developer can go an take that
 HTML and instrument it, so Tapestry at runtime kicks in.
 
 Is this still a major concept in T5?
 
 Thanks,
 -J.
 
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Binding Loop parameters

[Peter Dotchev]

Hi,

Excuse me if this is a silly question but I'm new to Tapestry.

In order to use Loop's value (or index) inside its body, one has to bind it
to some property. Usually this means creating a new property in the page
class.
Here is an example from T5 tutorial.

t:loop source=1..10 value=index
   ${index} 
/t:loop

and in the Java code

private int _index;
public int getIndex()
{
return _index;
}
public void setIndex(int index)
{
_index = index;
}

It seems very clumsy for me to write all this Java code to support a simple
loop.
Can't the Loop component remember its value?

Isn't it possible to use loop's value/index direclty without binding?
Something like this.

t:loop source=1..10 t:id=aLoop
   ${aLoop.index} 
/t:loop


Also, what is the business with those heartbeats in Loop component? I
couldn't understand it from the documentation.


Best regards,
Peter

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