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Date: Tue, 19 Feb 2008 15:52:17 -0500
Subject: Re: S2 NESTED iterators & FLAT HashMaps:
From: Randy Burgess <RBurgess@nuvox.com>
To: Struts Users Mailing List <user@struts.apache.org>
Message-ID: <C3E0ABB1.31AB%RBurgess@nuvox.com>
Thread-Topic: S2 NESTED iterators & FLAT HashMaps:
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In-Reply-To: <15561558.post@talk.nabble.com>
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One is JSTL, the other is using OGNL and they are not the same.

Regards,
Randy Burgess
Sr. Web Applications Developer
Nuvox Communications


> From: ravi_eze <ravichandrac@ivycomptech.com>
> Reply-To: Struts Users Mailing List <user@struts.apache.org>
> Date: Tue, 19 Feb 2008 08:44:06 -0800 (PST)
> To: <user@struts.apache.org>
> Subject: Re: S2 NESTED iterators & FLAT HashMaps:
> 
> 
> hi,
> 
> The answers were a real help. I could get the things to things working...
> 
> now when i use: fruits Val :${fruitsId.value} this displays: fruits Val
> :[apple, banana, orange]
> 
> but when i use: ${fruitsId.value.size()} its giving compile time
> errors:tAttributes.jsp(98,16) The function size must be used with a prefix
> when a default namespace is not specified. I need to get 3 so how should i
> form the expression?
> 
> if i use: <s:property value="#fruitsId.value.size()" /> then its displaying
> 3. The tag is written as follows:
> 
> <s:iterator
> id="fruitsId"
> status="fruitsStat"
> value="fruitColourInfo">
>                        <s:property value="#fruitsId.value.size()" />
>                  ...
> 
> i basically need to use this in < td colspan="{...}" > ... is there any
> alternative ways of handling this? any ideas pl: help
> 
> ravi
> 
> 
> 
> Laurie Harper wrote:
>> 
>>> fruits KEY <s:property value="#fruitsId.key" />
>> 
>> Gets the key from the map entry and displays it; OK here.
>> 
>>> fruits Val <s:text name="%{fruitsStat.value}" />
>> 
>> Gets the 'value' property of the iterator status object and uses that as
>> a lookup key in the application's message resources. Umm... First, I'm
>> not sure if the iterator status object has a value property, but
>> wouldn't you want the value from the map entry? And second, do you have
>> the message properties set up?
>> 
>> That should probably be
>> 
>>      fruits Val <s:text name="%{fruitsId.value}" />
>> 
>> and, for sanity checing (in case your message resources aren't set up
>> correctly) you should start with just
>> 
>>      fruits Val <s:property value="%{fruitsId.value}" />
>> 
>> L.
>> 
>> Ravichandra C wrote:
>>> Hi,
>>> 
>>> I am trying this way:
>>> 
>>> 
>>> <s:iterator id="fruitsId" status="fruitsStat"
>>> value="fruitscolourandInfo" >
>>> fruits KEY <s:property value="#fruitsId.key" />
>>> <colour/>
>>> fruits Val <s:text name="%{fruitsStat.value}" />
>>> <colour/>
>>> <s:iterator id="colourId" status="colourStatus"
>>> value="fruitsId.value" >
>>> colour <s:text name="%{top.value}" /> <colour/>
>>> </s:iterator>
>>> </s:iterator>
>>> 
>>> The issue is that:
>>> Fruits key: is being displayed fine
>>> Fruits Val: nothing is being dislayed; infact when I tried similarly
>>> with fruits KEY even that is not being displayed. Any ideas how to get
>>> this working.. (in fact I need to get the results in textboxes next) 
>>> 
>>> Any help?
>>> Ravi 
>>> 
>>> -----Original Message-----
>>> From: Musachy Barroso [mailto:musachy@gmail.com]
>>> Sent: Monday, February 18, 2008 10:09 PM
>>> To: Struts Users Mailing List
>>> Subject: Re: S2 NESTED iterators & FLAT HashMaps:
>>> 
>>> When you use the "iterator" tag, the value of the "id" tag becomes the
>>> reference to the current object on that iteration(same as "top" on
>>> this case). When iterating over a map, the object is a Map.Entry, so
>>> you need to access the "key" and "value" properties, like
>>> 
>>> <s:iterator id="superMap" value="myMap">
>>>     Key: <s:property value="superMap.key" /> ....same as <s:property
>>> value="key" />
>>>     Value: <s:property value="superMap.value" />....same as
>>> <s:property value="value" />
>>> </s:iterator>
>>> 
>>> is not a direct answer to your question, but I think your problem is
>>> around that.
>>> //you can always do %{superMap[top.key]} to access the value, it is
>>> just harder to read
>>> 
>>> regards
>>> musachy
>>> 
>>> On Feb 18, 2008 11:21 AM, ravi_eze <ravichandrac@ivycomptech.com> wrote:
>>>> hi,
>>>> 
>>>> i have 4 hashmaps as follows:
>>>> (1). HashMap<String, HashSet<String>> treesFruitsMap = new HashMap();
>>>> (2). HashMap<String, HashSet<String>> fruitsColourMap = new HashMap();
>>>> (3). HashMap<String, String> colourVitaminMap = new HashMap();
>>>> 
>>>> i.e.
>>>> (1) has the mapping btw tree names and the fruits it bears (as a set
>>> of
>>>> strings)
>>>> (2) has the mapping btw fruit name and the possible colours it can
>>> come out
>>>> in
>>>> (3) mapping btw fruit and the vitamins it has in it.
>>>> 
>>>> I need to display the output as follows:
>>>> Fruit1 - Colour1 - Vitamin1
>>>> Fruit1 - Colour1 - Vitamin2
>>>> Fruit1 - Colour2 - < corresponding vitamins >
>>>> ...
>>>> 
>>>> any idea how to go with this? I tried as follows but its not working..
>>>> 
>>>>         <s:iterator id="frId" status="frStat"
>>> value="frColourMap.keySet()" >
>>>>                 <s:iterator id="coId" status="coStatus" value="top" >
>>>>                         FE <s:text name="%{top}" /> <br/>
>>>>                         BR <s:text name="%{coStatus[top]}" /> <br/>
>>>>                 </s:iterator>
>>>>         </s:iterator>
>>>> 
>>>> this is giving only the fruits names but not the colours...
>>>> 
>>>> pl: help.
>>>> 
>>>> --
>>>> View this message in context:
>>> http://www.nabble.com/S2-NESTED-iterators---FLAT-HashMaps%3A-tp15546918p
>>> 15546918.html
>>>> Sent from the Struts - User mailing list archive at Nabble.com.
>>>> 
>>>> 
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
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>>>> 
>>>> 
>>> 
>>> 
>>> 
>> 
>> 
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>> 
>> 
> 
> -- 
> View this message in context:
> http://www.nabble.com/S2-NESTED-iterators---FLAT-HashMaps%3A-tp15546918p155615
> 58.html
> Sent from the Struts - User mailing list archive at Nabble.com.
> 
> 
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