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Posted to users@tapestry.apache.org by Michael Gentry <mg...@masslight.net> on 2009/08/13 18:34:01 UTC
T5.1 If/Conditional against a method?
Hi all,
I've been searching the documentation/examples/list all morning, but
can't find an answer to this so far. Can T5.1 do a conditional
against a method instead of a variable (property)? I have something
like:
<div t:type="If" test="showFoo">...</div>
For the Java, I have tried numerous varieties of:
protected boolean showFoo() { ... }
(isShowFoo, getShowFoo, etc, etc)
I keep getting an exception that it can't convert showFoo to a
component parameter binding, then it shows me all the variables (not
methods) in my class. Of course, you can't put an @Property on a
method, either. Is it not possible in T5 to bind your conditional to
a method? (T4 could do this.)
Thanks,
mrg
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Re: T5.1 If/Conditional against a method?
Posted by Michael Gentry <mg...@masslight.net>.
Thanks Thiago/Robert!
Both of your suggestions worked (although I had to change the method
to public instead of protected for both). I didn't try Norman's
(although I'm sure OGNL would be fine) because I'm not using CK (at
least not yet).
mrg
On Thu, Aug 13, 2009 at 1:02 PM, Robert Zeigler<ro...@scazdl.org> wrote:
> If you want the method to be showFoo(), then you need to do
> test="showFoo()".
> But you can use test="showFoo" if showFoo() is renamed to isShowFoo, iff you
> change the accessor to public (from protected).
> That is, for property access, tapestry is following java beans conventions,
> and a property is only a java beans property if it's public. :)
>
> Robert
>
> On Aug 13, 2009, at 8/1311:34 AM , Michael Gentry wrote:
>
>> Hi all,
>>
>> I've been searching the documentation/examples/list all morning, but
>> can't find an answer to this so far. Can T5.1 do a conditional
>> against a method instead of a variable (property)? I have something
>> like:
>>
>> <div t:type="If" test="showFoo">...</div>
>>
>> For the Java, I have tried numerous varieties of:
>>
>> protected boolean showFoo() { ... }
>>
>> (isShowFoo, getShowFoo, etc, etc)
>>
>> I keep getting an exception that it can't convert showFoo to a
>> component parameter binding, then it shows me all the variables (not
>> methods) in my class. Of course, you can't put an @Property on a
>> method, either. Is it not possible in T5 to bind your conditional to
>> a method? (T4 could do this.)
>>
>> Thanks,
>>
>> mrg
>>
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>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
>> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
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>
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Re: T5.1 If/Conditional against a method?
Posted by Robert Zeigler <ro...@scazdl.org>.
If you want the method to be showFoo(), then you need to do
test="showFoo()".
But you can use test="showFoo" if showFoo() is renamed to isShowFoo,
iff you change the accessor to public (from protected).
That is, for property access, tapestry is following java beans
conventions, and a property is only a java beans property if it's
public. :)
Robert
On Aug 13, 2009, at 8/1311:34 AM , Michael Gentry wrote:
> Hi all,
>
> I've been searching the documentation/examples/list all morning, but
> can't find an answer to this so far. Can T5.1 do a conditional
> against a method instead of a variable (property)? I have something
> like:
>
> <div t:type="If" test="showFoo">...</div>
>
> For the Java, I have tried numerous varieties of:
>
> protected boolean showFoo() { ... }
>
> (isShowFoo, getShowFoo, etc, etc)
>
> I keep getting an exception that it can't convert showFoo to a
> component parameter binding, then it shows me all the variables (not
> methods) in my class. Of course, you can't put an @Property on a
> method, either. Is it not possible in T5 to bind your conditional to
> a method? (T4 could do this.)
>
> Thanks,
>
> mrg
>
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> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
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Re: T5.1 If/Conditional against a method?
Posted by Norman Franke <no...@myasd.com>.
On Aug 13, 2009, at 12:47 PM, Thiago H. de Paula Figueiredo wrote:
> Em Thu, 13 Aug 2009 13:34:01 -0300, Michael Gentry <mgentry@masslight.net
> > escreveu:
>
>> Hi all,
>
> Hi!
>
>> <div t:type="If" test="showFoo">...</div>
>
> Try <div t:type="If" test="showFoo()">...</div>. Notice the
> parenthesis. Without them, Tapestry looks for get or is methods.
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java consultant, developer, and instructor
> http://www.arsmachina.com.br/thiago
One can also use the Chenille Kit's OGNL binding and do more
complicated tests, I'd imagine.
Norman Franke
Answering Service for Directors, Inc.
www.myasd.com
Re: T5.1 If/Conditional against a method?
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
Em Thu, 13 Aug 2009 13:34:01 -0300, Michael Gentry <mg...@masslight.net>
escreveu:
> Hi all,
Hi!
> <div t:type="If" test="showFoo">...</div>
Try <div t:type="If" test="showFoo()">...</div>. Notice the parenthesis.
Without them, Tapestry looks for get or is methods.
--
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago
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