Groups > comp.lang.java.programmer > #13138

Re: JSTL: getting a map's keys

From	Lew <noone@lewscanon.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: JSTL: getting a map's keys
Date	2012-03-23 13:50 -0700
Organization	albasani.net
Message-ID	<jkinnf$dv8$1@news.albasani.net> (permalink)
References	(5 earlier) <9sujq2Foc1U1@mid.individual.net> <jkfe8k$si4$1@news.albasani.net> <9t1791Fdo5U1@mid.individual.net> <11405563.61.1332447814183.JavaMail.geo-discussion-forums@pbctp7> <9t3pslFi0vU1@mid.individual.net>

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Chris Riesbeck wrote:
> Lew wrote:
>> Chris Riesbeck wrote:
>>> Lew wrote:
>>>> Chris Riesbeck wrote:
>>>
>>> So I don't see how I can have a class such that in the JSP EL I can call
>>> a method to get all the keys, and also retrieve data with a key using [].
>>
>> I was thinking along the lines of this incompletely worked-through notion:
>>
>> public class ContactScreenBacker
>> {
>> private final Map<String, Rate> rates = howeverYouSetItUp();
>> public Map<String, Rate> getRates() { return
>> Collections.unmodifiableMap(rates); }
>> public Set<String> getKeys() { return
>> Collections.unmodifiableSet(rates.getKeys(); }
>> // ...
>> }
>>
>> You should be able to use an EL like '#{thingie.rates["Bill"]}'. I
>> haven't tried it, but this is what I had in mind.
>
> Yes, that's probably the approach I'll take. Not quite what I'd wanted, but
> close enough and I can't see why it shouldn't work.

Let us know how it plays out, please.

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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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