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Posted to user@struts.apache.org by Pierre Thibaudeau <pi...@gmail.com> on 2008/06/15 04:26:06 UTC
[S2] using for a sequence of integers
Is there a simple syntax with <s:iterator> or <s:generator> for displaying a
sequence of integers from 0 to N-1 ?
(The value of N is not known at compile time.)
At the moment, the only way I can think of doing this is not very appealing:
Within the action, create an ArrayList and populate it with the sequence of
integers. Then iterate over that list with <s:iterator>.
Is there an easier way? Something that would not involve the action?
Re: (!) Simple for-next loops using , was: Re: [S2] using for a sequence of integers
Posted by Dave Newton <ne...@yahoo.com>.
Aww, you guys are making me sad :(
--- On Tue, 6/17/08, Al Sutton <al...@alsutton.com> wrote:
> From: Al Sutton <al...@alsutton.com>
> Subject: Re: (!) Simple for-next loops using <s:iterator...>, was: Re: [S2] using <s:iterator> for a sequence of integers
> To: "Struts Users Mailing List" <us...@struts.apache.org>
> Date: Tuesday, June 17, 2008, 9:43 AM
> +100 for the for tag.
>
> It'll mean I don't end up using displaytag and
> including the jar just to
> show simple paged lists.
>
> Musachy Barroso wrote:
> > Nice, and confusing :)
> >
> > //I think we should create a "for" tag
> >
> > musachy
> >
> > On Tue, Jun 17, 2008 at 9:38 AM, Dave Newton
> <ne...@yahoo.com> wrote:
> >
> >> From time to time people ask about implementing a
> simple loop using <s:iterator...> similar to
> <c:forEach begin="..."
> end="...">.
> >>
> >> Turns out there's some OGNL magic for doing
> simple loops (start at 0, go to n-1), and the significance
> of it never really struck me until the #this questions.
> >>
> >> <s:iterator value="(10).{ #this
> }">
> >> Narnar
> >> </s:iterator>
> >>
> >> Aww yeah.
> >>
> >> Dave "OGNL FTW" Newton
> >>
> >> --- On Sat, 6/14/08, Pierre Thibaudeau
> <pi...@gmail.com> wrote:
> >>
> >>
> >>> From: Pierre Thibaudeau
> <pi...@gmail.com>
> >>> Subject: [S2] using <s:iterator> for a
> sequence of integers
> >>> To: "Struts Users Mailing List"
> <us...@struts.apache.org>
> >>> Date: Saturday, June 14, 2008, 10:26 PM
> >>> Is there a simple syntax with
> <s:iterator> or
> >>> <s:generator> for displaying a
> >>> sequence of integers from 0 to N-1 ?
> >>> (The value of N is not known at compile time.)
> >>>
> >>> At the moment, the only way I can think of
> doing this is
> >>> not very appealing:
> >>> Within the action, create an ArrayList and
> populate it with
> >>> the sequence of
> >>> integers. Then iterate over that list with
> >>> <s:iterator>.
> >>>
> >>> Is there an easier way? Something that would
> not involve
> >>> the action?
> >>>
> >>
> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail:
> user-unsubscribe@struts.apache.org
> >> For additional commands, e-mail:
> user-help@struts.apache.org
> >>
> >>
> >>
> >
> >
> >
> >
>
>
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Re: (!) Simple for-next loops using , was: Re: [S2]
using for a sequence of integers
Posted by Al Sutton <al...@alsutton.com>.
+100 for the for tag.
It'll mean I don't end up using displaytag and including the jar just to
show simple paged lists.
Musachy Barroso wrote:
> Nice, and confusing :)
>
> //I think we should create a "for" tag
>
> musachy
>
> On Tue, Jun 17, 2008 at 9:38 AM, Dave Newton <ne...@yahoo.com> wrote:
>
>> From time to time people ask about implementing a simple loop using <s:iterator...> similar to <c:forEach begin="..." end="...">.
>>
>> Turns out there's some OGNL magic for doing simple loops (start at 0, go to n-1), and the significance of it never really struck me until the #this questions.
>>
>> <s:iterator value="(10).{ #this }">
>> Narnar
>> </s:iterator>
>>
>> Aww yeah.
>>
>> Dave "OGNL FTW" Newton
>>
>> --- On Sat, 6/14/08, Pierre Thibaudeau <pi...@gmail.com> wrote:
>>
>>
>>> From: Pierre Thibaudeau <pi...@gmail.com>
>>> Subject: [S2] using <s:iterator> for a sequence of integers
>>> To: "Struts Users Mailing List" <us...@struts.apache.org>
>>> Date: Saturday, June 14, 2008, 10:26 PM
>>> Is there a simple syntax with <s:iterator> or
>>> <s:generator> for displaying a
>>> sequence of integers from 0 to N-1 ?
>>> (The value of N is not known at compile time.)
>>>
>>> At the moment, the only way I can think of doing this is
>>> not very appealing:
>>> Within the action, create an ArrayList and populate it with
>>> the sequence of
>>> integers. Then iterate over that list with
>>> <s:iterator>.
>>>
>>> Is there an easier way? Something that would not involve
>>> the action?
>>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>>
>
>
>
>
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Re: (!) Simple for-next loops using , was: Re: [S2] using for a sequence of integers
Posted by Musachy Barroso <mu...@gmail.com>.
Nice, and confusing :)
//I think we should create a "for" tag
musachy
On Tue, Jun 17, 2008 at 9:38 AM, Dave Newton <ne...@yahoo.com> wrote:
> From time to time people ask about implementing a simple loop using <s:iterator...> similar to <c:forEach begin="..." end="...">.
>
> Turns out there's some OGNL magic for doing simple loops (start at 0, go to n-1), and the significance of it never really struck me until the #this questions.
>
> <s:iterator value="(10).{ #this }">
> Narnar
> </s:iterator>
>
> Aww yeah.
>
> Dave "OGNL FTW" Newton
>
> --- On Sat, 6/14/08, Pierre Thibaudeau <pi...@gmail.com> wrote:
>
>> From: Pierre Thibaudeau <pi...@gmail.com>
>> Subject: [S2] using <s:iterator> for a sequence of integers
>> To: "Struts Users Mailing List" <us...@struts.apache.org>
>> Date: Saturday, June 14, 2008, 10:26 PM
>> Is there a simple syntax with <s:iterator> or
>> <s:generator> for displaying a
>> sequence of integers from 0 to N-1 ?
>> (The value of N is not known at compile time.)
>>
>> At the moment, the only way I can think of doing this is
>> not very appealing:
>> Within the action, create an ArrayList and populate it with
>> the sequence of
>> integers. Then iterate over that list with
>> <s:iterator>.
>>
>> Is there an easier way? Something that would not involve
>> the action?
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
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Re: [S2] using for a sequence of integers
Posted by Pierre Thibaudeau <pi...@gmail.com>.
Good point. Thank you!
2008/6/14 Dave Newton <ne...@yahoo.com>:
> I usually just use <c:forEach...> which has clean support for for/next type
> iteration. <s:iterator...> doesn't currently implement similar usage, AFAIK.
>
Re: (!) Simple for-next loops using , was: Re: [S2] using for a sequence of integers
Posted by Dave Newton <ne...@yahoo.com>.
I added a code sample to IteratorComponent and threw it in to <s:iterator...> tag docs but it'll take the normal amount of time to percolate.
(People complain about OGNL, but I sure do like it more than JSP EL, even with the occasional "Hmm, that's... interesting.")
Thanks for throwing it into the FAQ; not sure why I didn't :/
Dave
--- On Tue, 6/17/08, Laurie Harper <la...@holoweb.net> wrote:
> Thank you Dave; I've been telling myself there *must* be
> an OGNL solution for this for so long, but hadn't managed to
> track it down. It's the first time I've seen this solution
> posted, and I definately think it's worth an entry in the FAQ!
>
> http://cwiki.apache.org/confluence/pages/viewpage.action?pageId=88506
>
> L.
>
> Dave Newton wrote:
> > From time to time people ask about implementing a
> simple loop using <s:iterator...> similar to
> <c:forEach begin="..."
> end="...">.
> >
> > Turns out there's some OGNL magic for doing simple
> loops (start at 0, go to n-1), and the significance of it
> never really struck me until the #this questions.
> >
> > <s:iterator value="(10).{ #this }">
> > Narnar
> > </s:iterator>
> >
> > Aww yeah.
> >
> > Dave "OGNL FTW" Newton
> >
> > --- On Sat, 6/14/08, Pierre Thibaudeau
> <pi...@gmail.com> wrote:
> >
> >> From: Pierre Thibaudeau
> <pi...@gmail.com>
> >> Subject: [S2] using <s:iterator> for a
> sequence of integers
> >> To: "Struts Users Mailing List"
> <us...@struts.apache.org>
> >> Date: Saturday, June 14, 2008, 10:26 PM
> >> Is there a simple syntax with <s:iterator>
> or
> >> <s:generator> for displaying a
> >> sequence of integers from 0 to N-1 ?
> >> (The value of N is not known at compile time.)
> >>
> >> At the moment, the only way I can think of doing
> this is
> >> not very appealing:
> >> Within the action, create an ArrayList and
> populate it with
> >> the sequence of
> >> integers. Then iterate over that list with
> >> <s:iterator>.
> >>
> >> Is there an easier way? Something that would not
> involve
> >> the action?
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail:
> user-help@struts.apache.org
---------------------------------------------------------------------
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Re: (!) Simple for-next loops using , was: Re: [S2]
using for a sequence of integers
Posted by Laurie Harper <la...@holoweb.net>.
Thank you Dave; I've been telling myself there *must* be an OGNL
solution for this for so long, but hadn't managed to track it down. It's
the first time I've seen this solution posted, and I definately think
it's worth an entry in the FAQ!
http://cwiki.apache.org/confluence/pages/viewpage.action?pageId=88506
L.
Dave Newton wrote:
> From time to time people ask about implementing a simple loop using <s:iterator...> similar to <c:forEach begin="..." end="...">.
>
> Turns out there's some OGNL magic for doing simple loops (start at 0, go to n-1), and the significance of it never really struck me until the #this questions.
>
> <s:iterator value="(10).{ #this }">
> Narnar
> </s:iterator>
>
> Aww yeah.
>
> Dave "OGNL FTW" Newton
>
> --- On Sat, 6/14/08, Pierre Thibaudeau <pi...@gmail.com> wrote:
>
>> From: Pierre Thibaudeau <pi...@gmail.com>
>> Subject: [S2] using <s:iterator> for a sequence of integers
>> To: "Struts Users Mailing List" <us...@struts.apache.org>
>> Date: Saturday, June 14, 2008, 10:26 PM
>> Is there a simple syntax with <s:iterator> or
>> <s:generator> for displaying a
>> sequence of integers from 0 to N-1 ?
>> (The value of N is not known at compile time.)
>>
>> At the moment, the only way I can think of doing this is
>> not very appealing:
>> Within the action, create an ArrayList and populate it with
>> the sequence of
>> integers. Then iterate over that list with
>> <s:iterator>.
>>
>> Is there an easier way? Something that would not involve
>> the action?
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(!) Simple for-next loops using , was: Re: [S2] using for a sequence of integers
Posted by Dave Newton <ne...@yahoo.com>.
>From time to time people ask about implementing a simple loop using <s:iterator...> similar to <c:forEach begin="..." end="...">.
Turns out there's some OGNL magic for doing simple loops (start at 0, go to n-1), and the significance of it never really struck me until the #this questions.
<s:iterator value="(10).{ #this }">
Narnar
</s:iterator>
Aww yeah.
Dave "OGNL FTW" Newton
--- On Sat, 6/14/08, Pierre Thibaudeau <pi...@gmail.com> wrote:
> From: Pierre Thibaudeau <pi...@gmail.com>
> Subject: [S2] using <s:iterator> for a sequence of integers
> To: "Struts Users Mailing List" <us...@struts.apache.org>
> Date: Saturday, June 14, 2008, 10:26 PM
> Is there a simple syntax with <s:iterator> or
> <s:generator> for displaying a
> sequence of integers from 0 to N-1 ?
> (The value of N is not known at compile time.)
>
> At the moment, the only way I can think of doing this is
> not very appealing:
> Within the action, create an ArrayList and populate it with
> the sequence of
> integers. Then iterate over that list with
> <s:iterator>.
>
> Is there an easier way? Something that would not involve
> the action?
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Re: [S2] using for a sequence of integers
Posted by Dave Newton <ne...@yahoo.com>.
I usually just use <c:forEach...> which has clean support for for/next type iteration. <s:iterator...> doesn't currently implement similar usage, AFAIK.
Dave
--- On Sat, 6/14/08, Pierre Thibaudeau <pi...@gmail.com> wrote:
> From: Pierre Thibaudeau <pi...@gmail.com>
> Subject: [S2] using <s:iterator> for a sequence of integers
> To: "Struts Users Mailing List" <us...@struts.apache.org>
> Date: Saturday, June 14, 2008, 10:26 PM
> Is there a simple syntax with <s:iterator> or
> <s:generator> for displaying a
> sequence of integers from 0 to N-1 ?
> (The value of N is not known at compile time.)
>
> At the moment, the only way I can think of doing this is
> not very appealing:
> Within the action, create an ArrayList and populate it with
> the sequence of
> integers. Then iterate over that list with
> <s:iterator>.
>
> Is there an easier way? Something that would not involve
> the action?
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