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Re: JSTL: getting a map's keys

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On 3/20/2012 1:05 PM, Lew wrote:
> Chris Riesbeck wrote:

>> http://docs.oracle.com/javaee/5/api/javax/servlet/jsp/JspApplicationContext.html
>>
>> So the Map interpretation will always override the Bean interpretation.
>
> Now that your main question is answered, a couple of comments are in order.
>
> - Don't have scriptlet in your JSPs.

I never do. That was in the original JSP just to show that getKeys() was 
functioning and returning a non-empty result

> - If you had *composed* a 'Map' into a custom class rather than
> inheriting 'Map', you would not have had the problem. Your custom
> class would have been resolved by the bean resolver. - This in turn
> would make for a better design overall. Instead of your view artifact
> (the JSP) caring about the implementation details of the map and its
> set of keys, you'd have a controller call like 'getKeys()' or
> whatever that would cleanly separate the logic of how you get them
> from presentation concerns.

Using delegation (my preference also) doesn't support the JSP EL form 
${rates["Bill"]}. If I had a custom class, I'd need a custom tag or 
custom EL resolver to make that work.

The original goal was to get the JSTL away from knowing about Map's, in 
particular about entry.key and entry.value.

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Thread

JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-19 13:15 -0500
  Re: JSTL: getting a map's keys Lew <lewbloch@gmail.com> - 2012-03-19 12:57 -0700
  Re: JSTL: getting a map's keys Tim Slattery <Slattery_T@bls.gov> - 2012-03-19 16:08 -0400
    Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-19 16:06 -0500
      Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-19 16:39 -0500
    Re: JSTL: getting a map's keys markspace <-@.> - 2012-03-19 15:27 -0700
  Re: JSTL: getting a map's keys Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-03-19 16:59 -0700
    Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-20 12:19 -0500
      Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-20 12:52 -0500
        Re: JSTL: getting a map's keys Lew <lewbloch@gmail.com> - 2012-03-20 11:05 -0700
          Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-21 13:09 -0500
            Re: JSTL: getting a map's keys Lew <noone@lewscanon.com> - 2012-03-22 07:51 -0700
              Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-22 12:53 -0500
                Re: JSTL: getting a map's keys Lew <lewbloch@gmail.com> - 2012-03-22 13:23 -0700
                Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-23 12:23 -0500
                Re: JSTL: getting a map's keys Lew <noone@lewscanon.com> - 2012-03-23 13:50 -0700
                Re: JSTL: getting a map's keys Chris Riesbeck <Chris.Riesbeck@gmail.com> - 2012-03-26 14:10 -0500
        Re: JSTL: getting a map's keys Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-03-20 11:28 -0700
        Re: JSTL: getting a map's keys markspace <-@.> - 2012-03-20 11:29 -0700
          Re: JSTL: getting a map's keys Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-03-20 12:10 -0700

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