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Posted to users@tapestry.apache.org by Martin Strand <do...@gmail.com> on 2007/01/01 03:50:43 UTC
Re: dynamic ognl expr
If you generate the expression dynamically, you can use an
ExpressionEvaluator:
public Object getValue()
{
String expression = "components.tableRows.tableRow." + getColumnName();
return getExpressionEvaluator().read(getPage(), expression);
}
@InjectObject("service:tapestry.ognl.ExpressionEvaluator")
public abstract ExpressionEvaluator getExpressionEvaluator();
Happy new year
Martin
On Sun, 31 Dec 2006 18:18:29 +0100, ra <ry...@gazeta.pl> wrote:
>
> I'd like to read object's property value but the property name is known
> during runtime only
> so finally the ognl expression should looks like this
>
> value="ognl:components.tableRows.tableRow.clientId"
>
> but clientId is generated and can be read i.e. from page's property:
> columnName
>
> So I'd like to write sth like this:
> value="ognl:('components.tableRows.tableRow.' + ognl:columnName)"
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Re: dynamic ognl expr
Posted by andyhot <an...@di.uoa.gr>.
Check out some ognl docs for expression syntax, e.t.c.
IIRC, you can do
value="ognl:components.tableRows.tableRow[columnName]"
And happy new year from greece as well !
Martin Strand wrote:
> If you generate the expression dynamically, you can use an
> ExpressionEvaluator:
>
> public Object getValue()
> {
> String expression = "components.tableRows.tableRow." + getColumnName();
> return getExpressionEvaluator().read(getPage(), expression);
> }
>
> @InjectObject("service:tapestry.ognl.ExpressionEvaluator")
> public abstract ExpressionEvaluator getExpressionEvaluator();
>
> Happy new year
>
> Martin
>
> On Sun, 31 Dec 2006 18:18:29 +0100, ra <ry...@gazeta.pl> wrote:
>
>>
>> I'd like to read object's property value but the property name is known
>> during runtime only
>> so finally the ognl expression should looks like this
>>
>> value="ognl:components.tableRows.tableRow.clientId"
>>
>> but clientId is generated and can be read i.e. from page's property:
>> columnName
>>
>> So I'd like to write sth like this:
>> value="ognl:('components.tableRows.tableRow.' + ognl:columnName)"
>
>
>
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> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
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>
>
>
--
Andreas Andreou - andyhot@apache.org - http://andyhot.di.uoa.gr
Tapestry / Tacos developer
Open Source / J2EE Consulting
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