Interesting! I didn't know that. Certainly that would help. It's actually
another example of the kind of flexibility I'm thinking about.
One disadvantage, though. It requires that the "outer" page know all the
messages the inner page wants to use. I would rather keep this coupling to
a minimum (e.g., just pass the "prefix", like I've shown), especially if I
have lots of similar outer pages (and I will...). This way, if I add and
use a new message or resource in the inner page I don't have to add
corresponding tags to the outer pages, too.
Thanks,
dean
> -----Original Message-----
> From: Niall Pemberton [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, June 13, 2001 5:43 PM
> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: RE: Proposal: Support nested tags where only
> attributes can be
> used
>
>
> For the example you give, the following works just as well in existing
> Struts:
>
> In your JSP page:
>
> <template:insert template="t.jsp">
> <template:put name="pageTitle" direct="true">
> <bean:message key="login.title"/>
> </template:put>
> </template:insert>
>
> Now, in "t.jsp"....
>
> <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
> ...
> <h1>Title is <template:get name="pageTitle"/></h1>
>
>
> Niall
>
>
> > -----Original Message-----
> > From: Dean Wampler [mailto:[EMAIL PROTECTED]]
> > Sent: 15 June 2001 01:28
> > To: [EMAIL PROTECTED]
> > Cc: Dean Wampler (E-mail)
> > Subject: Proposal: Support nested tags where only
> attributes can be used
> >
> >
> > I'm new to struts, so bear with me.
> >
> > I have been working with the "bean" and "template" tags. I have
> > found that a
> > straightforward (if a bit tedious to do...) enhancement
> would make it much
> > easier to construct JSP pages in ways useful for me.
> Basically, I would
> > like to use nested tags to specify some information to outer tag,
> > information that currently is specified only through attributes.
> >
> > Here's an example. Suppose I have a JSP page that uses the
> > <template:insert> construct:
> >
> > ...
> > <%@ taglib uri="/WEB-INF/struts-template.tld" prefix="template" %>
> > ...
> > <template:insert template="t.jsp">
> > <template:put name="pageName" content="login" direct="true"/>
> > </template:insert>
> >
> > Now, in "t.jsp", I would like to use the message tag with
> the parameter
> > "pageName" as a "prefix". Something that might look like:
> >
> > <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
> > ...
> > <h1>Title is <bean:message key='<template:get
> > name="pageName"/><%=".title"%>'/></h1>
> >
> > or perhaps
> >
> > <h1>Title is <bean:message key='<%=<template:get
> > name="pageName"/>+".title"%>'/></h1>
> >
> > There are two problems: (i) this is ugly and not easy to
> use by most HTML
> > designers, (ii) it doesn't work anyway. By the time the code
> > gets compiled
> > to a servlet, it appears that the "key='...'" expression
> ends up "key=''".
> > That is, '<template:get name="pageName"/>' is effectively empty.
> >
> > However, the following message tag structure would solve
> both problems and
> > support the capability I'm after (indentation is
> > for clarity...):
> >
> > <h1>Title is
> > <bean:message>
> > <bean:key>
> > <template:get name="pageName"/>.title
> > </bean:key>
> > </bean:message>
> > </h1>
> >
> > In other words, support nested tags to specify the "key"
> and perhaps other
> > attributes, so that specifying the values of the attributes is more
> > flexible.
> >
> > Many of the "ant" tasks support capabilities like this and
> it greatly
> > enhances the power and flexibility of build files.
> >
> > I have looked at the code for MessageTag (and others).
> This extension is
> > straightforward to implement and it can be done in a
> backwards compatible
> > way (that is, the old attribute syntax will still work fine).
> >
> > I'm willing to implement the changes, but before I do so, I
> > wanted to check
> > with the rest of you to see if there are any good reasons
> not to proceed.
> >
> > Thanks,
> > dean
> >
> > Dean Wampler, Ph.D.
> > [EMAIL PROTECTED]
> > <mailto:[EMAIL PROTECTED]>
> > http://www.powerhousetechnology.com/
> >
> > I want my tombstone to say:
> >
> > Unknown Application Error in Dean Wampler.exe.
> > Application Terminated.
> > [OK] [Cancel]
> >
>
>
