Zheng, Xiahong schrieb:
Hi,
I am exploring Tapestry (currently looking at 4.1.4 snapshot). So far,
the experience has been very positive. I was able to convert a Struts
based application to Tapestry4 in just a couple days. However, I still
need answer to the following questions,
1) Layout management: I couldn't find a documented solution to replace
tiles used by the old application.
I'm no Struts expert but AFAICR tiles are just some kind of reusable
templates. In Tapestry every component you write can be compared with a
tile. Just write your component (with or without a template) and reuse
it anywhere in your projects.
To manage a common layout on all pages you write a so called Border
component which contains layout common to all pages and that contains
the RenderBody component. If you then wrap your page's components within
your Border component, the content of your Border component is
rendered around them. Look here for an example:
http://tapestry.apache.org/tapestry4.1/components/general/renderbody.html
2) Dynamic attribute value generation: Something like the following you
can do with JSP
<input type="submit" value="${button. value}"/>
How do I achieve this in Tapestry? Is there a component I can use to
generate dynamic content as value for any arbitrary attribute of an HTML
element?
In Tapestry you do that with some OGNL expression. Your example would be
something like <input jwcid="@Submit" value="ognl:pageProperty" /> which
would label your button according to a call of getPageProperty() on your
page class.
Cheers,
Uli
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