I have spent some more time tracing this problem and I see what the problem
is - the attribute "value" does not acquire the value I'm attempting to
assign it.. To recap, in my action I have
private List<Integer> keys;
public List<Integer> getKeys() { return keys; }
public void setKays(List<Integer> keys) { this.keys = keys; }
and in the JSP fragment in question is like this:
<c:forEach var="qa" items="${actionBean.user.aMap}"
varStatus="loop">
<s:hidden name="keys[${loop.index}]">"${qa.key}"</s:hidden>
${qa.key} - ${loop.index}<br>
${qa.value.question}
<s:select name="answer">
<s:options-collection collection="${qa.value.aList}"/>
</s:select>
</c:forEach>
This fragment yields this source below for the trivial case with only one
element in the map actionBean.user.aMap. The attribute "value" is expected
to be "2" but is empty string. I tried to putting the ${qa.key} in the body
of <s:hidden> but to no avail. Any ideas?
<input name="keys[0]" type="hidden" value="" />
2 - 0<br>
The question text is ______.
<select name="answer">
<option value="3">3</option><option
value="4">4</option><option value="5">5</option><option
value="6">6</option><option value="7">7</option><option
value="8">8</option><option value="9">9</option><option
value="10">10</option><option value="11">11</option><option
value="12">12</option><option value="13">13</option><option
value="14">14</option><option value="15+">15+</option>
</select>
<br>
2010-07-19 21:09:45 [WARN] [net.sourceforge.stripes.util.Log] - Unhandled
exception caught by the Stripes default exception handler.
javax.servlet.ServletException: Index: 0, Size: 0
at
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:166)
at
net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:247)
at
com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at
com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at
com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:771)
at
com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:679)
at
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:539)
at
com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3357)
at
com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:267)
at
com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
at
com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1455)
at
com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:115)
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:454)
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:383)
at
com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at
com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1818)
at
com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at
com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at
com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:195)
at
com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:743)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:873)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1473)
On 19 July 2010 17:28, Aaron Stromas <passog...@gmail.com> wrote:
> Greetings,
>
> Can someone help me understand what am I missing about indexed properties?
> I have a rather odd legacy hash with integer keys. The values in the hash
> are beans with a fair number of properties, including a list, which is used
> for the HTML select element.
>
> <c:forEach var="qa" items="${actionBean.user.aMap}" varStatus="status">
>
> <s:select name="answer">
> <s:options-collection collection="${qa.value.aList}"/>
> </s:select>
>
> <s:hidden name="keys[${status.index}]" value="${qa.key}"/>
> </c:forEach>
>
> In addition to the selected value I need to capture the key of the map
> (qa.key), so I have created a List<String> property named "keys" in the
> action bean, hoping it would use the indexed properties to bind to the hash
> key values but it does not.
> I even tried <s:hidden name="${actionBean.keys[${status.index}]}"
> value="${qa.key}"/> but it did not help.
>
> Also, when I declare the "answer" property as String[], it is bound, but if
> I declare it as List<String> it does not! Why is that?
> Thanks in advance!
>
> -a
> --
> Aaron Stromas
> Mobile: +1 703 203 9169
>
>
--
Aaron Stromas
Mobile: +1 703 203 9169
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