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From: Chris Mylonas <chris@opencsta.org>
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Subject: Re: Q? about render phase of grid
Date: Tue, 3 Apr 2012 09:21:08 +1000
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To: "Thiago H. de Paula Figueiredo" <thiagohp@gmail.com>,
 Tapestry users <users@tapestry.apache.org>
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>=20
>=20
>> BTW,  I'm mucking around with my first component and during =
@SetupRender phase I have no data and return false to jump directly to =
@CleanupRender - which outputs my div saying "There is no data".
>>=20
>> I know this (@CleanupRender) will output all the time when I have =
elements to write out in @BeginRender phases, but I'm just slowly =
stepping through it all so I understand the render phases a bit better.
>=20
> See http://tapestry.apache.org/component-rendering.html and =
http://jumpstart.doublenegative.com.au/jumpstart/examples/navigation/whati=
scalledandwhen.


Just an FYI,
Inspecting jumpstart, and the component rendering page, I couldn't get =
@BeforeRenderBody to fire.

	@BeforeRenderTemplate
	boolean beforeRenderTemplate(MarkupWriter writer){
		Element cur =3D writer.element("div",
				=
"class","userbackground").addClassName("adifferentbackground");
		cur.text("CHRIS! This is your amazing test div - =
beforeRenderTemplate");
		writer.end();
	=09
		return true ;
	}
=09
	@BeforeRenderBody
	void beforeRenderBody(MarkupWriter writer){
	=09
		Element cur =3D writer.element("div",
				=
"class","userbackground").addClassName("adifferentbackground");
		cur.text("CHRIS! This is your amazing test div - =
beforeRenderBody");
		writer.end();

	}

The component rendering page says "...Generally, your code will use the =
SetupRender, BeginRender, AfterRender and CleanupRender phases ... often =
just one or two of those..."  which I'm happy with.

Is the diagram accurate as to this @BeforeRenderBody annotation?  For my =
case,  I'm happy to use beginRender - I just can't seem to follow the =
flow to get @BeforeRenderBody to do what is suggested on =
https://wiki.apache.org/tapestry/Tapestry5HowToCreateYourOwnComponents =
for the tree example.


Cheers
Chris=

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