Hello all,
is it possible (and how) to access the values of an indexed property
(a map) with the Struts2 "property" tag by providing a dynamicaly
retrieved/calculated index?
In detail:
Let's assume that "fooMap" is a simple Map<String, String> that's
provided by a Struts2 action. That map holds a unique key (ID)
and a description for a property of objects of the class "Item".
It serves as source for a "select" tag to set that property
when adding new items.
<s:select key="item.fooId" list="fooMap" />
On the same (JSP) page I want to list all existing items, using
an "iterator" tag.
That's quite easy, as long as I output the "fooId" as a simple
property.
<s:iterator value="itemList" id="item">
<tr>
<td><s:property value="#item.name"/></td>
<td><s:property value="#item.fooId"/></td>
</tr>
</s:iterator>
What I want to achive is to output the "fooDescription",
that is, the value that I would get by
fooMap.get(item.fooId);
I've played around with plenty variations of
<s:iterator value="itemList" id="item">
<tr>
<td><s:property value="#item.name"/></td>
<td><s:property value="fooMap['%{#item.fooId}']"/></td>
</tr>
</s:iterator>
Alas to no avail so far.
It's no problem to retrieve the "fooMap" values by providing
a static index, for example
<s:iterator value="itemList" id="item">
<tr>
<td><s:property value="#item.name"/></td>
<td><s:property value="fooMap['ID1']"/></td>
</tr>
</s:iterator>
will output the description to "ID1".
But how can I provide the dynamicaly retrieved index
from within the iterator?
Any insight on this would be highly appreciated. :)
Ciao,
Markus
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