On Wed, Oct 28, 2009 at 11:01 AM, Thiago H. de Paula Figueiredo
thiag...@gmail.com wrote:
Em Wed, 28 Oct 2009 11:49:39 -0200, ARD Marx Tobias
tobias.marx...@daserste.de escreveu:
Why are the following ognl expressions not supported anymore in the latest
Tapestry5 version?
5.1.0.5?
${method.getSomething()}
This exists in 5.0.18. Note that the method must be public. This
assumes you have a method named getMethod(), that is, a property named
method.
This works in 5.1.0.5.
${method.getSomething(´some constant´)}
Support for passing parameter values was added in 5.1. Previously you
could only invoke zero-args methods.
Thiago is right, however, that past a certain point, you will want to
create a method in your Java class as this starts to severely break
down the separation of concerns between the view and the controller,
and leaves you increasingly open to refactoring errors.
I don't know if the prop binding (the default one) supports this, by my
approach to this situation would be to create a getter method for it (say,
getSomethingX() and use ${somethingX} in the template.
${ognl:method.getSomething(´some constant´)}
You should add the ChenilleKit Tapestry package to use OGNL:
http://www.chenillekit.org/chenillekit-tapestry/index.html
and how does this work now?
Almost anything can be implemented using a getter method. As the logic is in
a Java class, it's easier to write, debug and test. I don't use nor miss
OGNL expressions in Tapestry 5. :)
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Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago
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