t5 Environment property

[kamiseq <ka...@gmail.com>]

hi,
I really cant find any proper explanation of Environment and Environmental.

>From javadoc I understand that children components are provided with
Environmental service set by their parents so there is a way of passing data
around but I really dont get the "stack idea" of Environment service.
And then If I have 3 components such
<A>
   <B>
   <C>
</A>
and then A sets some data by Environment interface then B and C can access
the data. But I tried and set some data in B and then accessed it in C
component that is sibling of B and not its child.
What if I enclose compoennts like
<A id=aa>
   <A id=ab>
      <B>
      <C>
   </A>
   <B>
   <C>
</A>
will A.ab override the data that A.aa set just before??

can somebody point me to any information/tutorial/example about Environment
and Environmental

thanks
-- 

pozdrawiam
Paweł Kamiński

kamiseq@gmail.com
pkaminski.prv@gmail.com
______________________

Re: t5 Environment property

[DH <ni...@gmail.com>]

http://tapestry.apache.org/tapestry5.1/guide/env.html

DH
http://www.gaonline.com.cn

----- Original Message ----- 
From: "kamiseq" 
To: <us...@tapestry.apache.org>
Sent: Tuesday, December 08, 2009 7:54 AM
Subject: t5 Environment property


hi,
I really cant find any proper explanation of Environment and Environmental.

From javadoc I understand that children components are provided with
Environmental service set by their parents so there is a way of passing data
around but I really dont get the "stack idea" of Environment service.
And then If I have 3 components such
<A>
   <B>
   <C>
</A>
and then A sets some data by Environment interface then B and C can access
the data. But I tried and set some data in B and then accessed it in C
component that is sibling of B and not its child.
---------------------
Of course you can access if component B doesn't pop the data after it is rendered, but I would suggest you don't do that and always pop the data after component is rendered.
You should make component B and C decouple well. So just set data in Component A is ok.

What if I enclose compoennts like
<A id=aa>
   <A id=ab>
      <B>
      <C>
   </A>
   <B>
   <C>
</A>
will A.ab override the data that A.aa set just before??
--------------------------------------------
Yes, it would overwrite the data.

can somebody point me to any information/tutorial/example about Environment
and Environmental

thanks
-- 

pozdrawiam
Paweł Kamiński

kamiseq@gmail.com
pkaminski.prv@gmail.com
______________________