Very interesting, so wrapping would work, but you can't
just expose a Bean property.
I've switched to c-rt for now,
Thanks!
On Fri, 2004-03-26 at 10:35, Kris Schneider wrote:
> Maps are treated differently than regular JavaBeans so that you can't access
> bean properties. For example, every object has a bean property called "class",
> but you won't get any output if you try ${map.class}. It's even more fun to try
> and get at a map's "empty" property ;-). If all you're concerned with is
> testing whether a map is empty or not, you can use ${not empty map}. If you
> really need the size of the map, you could try the Unstandard taglib:
>
> http://jakarta.apache.org/taglibs/sandbox/doc/unstandard-doc/intro.html
>
> Or do something like create a wrapper bean for collections that exposes a "size"
> property and delegates to the wrapped collection.
>
> Quoting Roy Benjamin <[EMAIL PROTECTED]>:
>
> > I am displaying the values in a TreeMap using forEach tag.
> > However, I only want to do this if the map is not empty.
> > I also need to display the count of entries in the map at
> > the top of the page.
> >
> > In TreeMap, size/size() is not a Bean Property (no?) so I tried
> > in-line subclassing to expose the property:
> >
> > <%
> > TreeMap treeMap = new TreeMap() {
> > public int getSize(){return size();}
> > };
> > pageContext.setAttribute("TableRows",treeMap);
> > %>
> >
> > now much later I try:
> >
> > <TD>
> > Search Results: <c:out value="${TableRows.size}"/> found.
> > </TD>
> >
> > I could just count things as they are added to the map
> > over a series of SQL queries, but it seemed to me this
> > was the better solution.. only the EL expression is null.
> >
> > I'm sure I'm doing something wrong....
> >
> > Thanks
> >
> > Roy
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