I don't know JSTL, but Hashmap does not implement
Collection interface.
Regards,
Roberto
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 09, 2002 8:02 PM
Subject: JSTL and HashMap: How does it work?
> Hi all
>
> According to the documentation, it's possible to get data from a HashMap
in
> JSTL. Unfortunately, it doesn't really work for me...
>
> Here's the deal: A stock has a collection of charts, thus:
>
> stock.numberOfCharts = <c:out value="${stock.numberOfCharts}"/><br>
> stock.charts = <c:out value="${stock.charts}"/>
> <c:forEach var="chart" items="${stock.charts}">
> <br>-> chart = <c:out value="${chart}"/>
> </c:forEach>
>
> results in
>
> stock.numberOfCharts = 9
> stock.charts = {1M=ch.xobix.contentgroup.controller.ImageWrapper@f6ae1c,
> 2M=ch.xobix.contentgroup.controller.ImageWrapper@20d6b7,
> 3M=ch.xobix.contentgroup.controller.ImageWrapper@f08d0f,
> 6M=ch.xobix.contentgroup.controller.ImageWrapper@bcfa38,
> 1Y=ch.xobix.contentgroup.controller.ImageWrapper@cfaf6e,
> 2Y=ch.xobix.contentgroup.controller.ImageWrapper@6989e,
> 3Y=ch.xobix.contentgroup.controller.ImageWrapper@dd7a7,
> 5Y=ch.xobix.contentgroup.controller.ImageWrapper@c94114,
> YTD=ch.xobix.contentgroup.controller.ImageWrapper@cf9bf0}
> -> chart = 1M=ch.xobix.contentgroup.controller.ImageWrapper@f6ae1c
> -> chart = 2M=ch.xobix.contentgroup.controller.ImageWrapper@20d6b7
> -> chart = 3M=ch.xobix.contentgroup.controller.ImageWrapper@f08d0f
> -> chart = 6M=ch.xobix.contentgroup.controller.ImageWrapper@bcfa38
> -> chart = 1Y=ch.xobix.contentgroup.controller.ImageWrapper@cfaf6e
> -> chart = 2Y=ch.xobix.contentgroup.controller.ImageWrapper@6989e
> -> chart = 3Y=ch.xobix.contentgroup.controller.ImageWrapper@dd7a7
> -> chart = 5Y=ch.xobix.contentgroup.controller.ImageWrapper@c94114
> -> chart = YTD=ch.xobix.contentgroup.controller.ImageWrapper@cf9bf0
>
> which is fine. However, how can I address one entry?
> If I try
>
> chart = <c:out value="${stock.charts["1M"]}"/>
>
> I get
>
> javax.servlet.ServletException: /jsp/financialdata/show.jsp(33,40)
Attribute
> 1M has no value
>
> By the way, my getCharts() returns a LinkedHashMap (I wanted the same
> sequence as when I inserted the objects). Theoretically, shouldn't I be
able
> to traverse it like e.g. an ArrayList?
>
> chart[0] = <c:out value="${stock.charts[0]}"/>
>
> doesn't give me anything, though...
>
>
> Best regards,
> Eric
>
>
> --
> To unsubscribe, e-mail:
<mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
<mailto:[EMAIL PROTECTED]>
>
--
To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
