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Posted to user@struts.apache.org by Ylva Degerfeldt <yl...@gmail.com> on 2008/07/30 13:32:20 UTC
Is it a bug in Struts 1.2 that you can't iterate through a java.util.Set?
Hi everyone,
I'm using Struts 1.2 (bundled with NetBeans 5.5.1) and I've noticed
that I can't iterate through a java.util.Set using the logic:iterate
tag.
The code that I've tried:
<logic:iterate collection = "skillsFound" id= "thisSkill" scope = "session">
I get this exception: javax.servlet.ServletException:
javax.servlet.jsp.JspException: Cannot create iterator for this
collection
Does anyone know if this is a bug of Struts 1.2 and if there's a later
version (not Struts 2) where it's been fixed?
I'd really appreciate an answer to this!
Thanks in advance!
/Ylva
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Re: Is it a bug in Struts 1.2 that you can't iterate through a java.util.Set?
Posted by Ylva Degerfeldt <yl...@gmail.com>.
Thank you, Laurie!
But I'm going to switch to Struts 2 now so that issue is not so
important anymore.
Thanks anyway!
/Ylva
On Wed, Jul 30, 2008 at 11:11 PM, Laurie Harper <la...@holoweb.net> wrote:
> Ylva Degerfeldt wrote:
>>
>> Hi everyone,
>>
>> I'm using Struts 1.2 (bundled with NetBeans 5.5.1) and I've noticed
>> that I can't iterate through a java.util.Set using the logic:iterate
>> tag.
>> The code that I've tried:
>>
>> <logic:iterate collection = "skillsFound" id= "thisSkill" scope =
>> "session">
>>
>> I get this exception: javax.servlet.ServletException:
>> javax.servlet.jsp.JspException: Cannot create iterator for this
>> collection
>>
>> Does anyone know if this is a bug of Struts 1.2 and if there's a later
>> version (not Struts 2) where it's been fixed?
>>
>> I'd really appreciate an answer to this!
>>
>> Thanks in advance!
>>
>> /Ylva
>
> Sets are unordered, so I believe both Struts's iterate and JSTL forEach tags
> treat them as non-iterable, even though they do implement Collection. If you
> can expose skillsFound.iterator() as a scripting variable or page/request
> scoped attribute to pass into logic:iterate that might work.
>
> L.
>
>
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Re: Is it a bug in Struts 1.2 that you can't iterate through a java.util.Set?
Posted by Laurie Harper <la...@holoweb.net>.
Ylva Degerfeldt wrote:
> Hi everyone,
>
> I'm using Struts 1.2 (bundled with NetBeans 5.5.1) and I've noticed
> that I can't iterate through a java.util.Set using the logic:iterate
> tag.
> The code that I've tried:
>
> <logic:iterate collection = "skillsFound" id= "thisSkill" scope = "session">
>
> I get this exception: javax.servlet.ServletException:
> javax.servlet.jsp.JspException: Cannot create iterator for this
> collection
>
> Does anyone know if this is a bug of Struts 1.2 and if there's a later
> version (not Struts 2) where it's been fixed?
>
> I'd really appreciate an answer to this!
>
> Thanks in advance!
>
> /Ylva
Sets are unordered, so I believe both Struts's iterate and JSTL forEach
tags treat them as non-iterable, even though they do implement
Collection. If you can expose skillsFound.iterator() as a scripting
variable or page/request scoped attribute to pass into logic:iterate
that might work.
L.
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