It could be that the "listener:" binding works on pages only. What happens
when you specify "ognl:listeners.editClient" instead?
On 4/12/06, matt wear <[EMAIL PROTECTED]> wrote:
>
> Thanks for the replies Peter. I tried adding the class attribute to my
> component spec, but I still have the same problem. Tapestry still wants
> to call the listener of the page containing they border.
>
> Peter Svensson wrote:
> > No, you're right. I was confused. Now I do think I know why it doesn't
> work
> > though.
> >
> > In your jwc file, you have specified the class which implements your
> > component, and is the place to go look for methods, etc.
> >
> > <component-specification class="...
> >
> > When you define a sub-component, like this;
> >
> > <component id="editClient" type="DirectLink">
> > <binding name="listener" value="listener:editClient"/>
> > </component>
> >
> > Tapestry will look for the editClient() or editClient(IRequestCycle
> cycle)
> > (I think) in the class specified.
> >
> > what I do when I want dynamic listeners, or what you could call them, is
> to
> > let the listener be a parameter to my component, like;
> >
> > <parameter name="callback"/>
> >
> > and then in the component class have
> >
> > public abstract IActionListener getCallback();
> > public abstract void setCallback(IActionListener l);
> >
> > And then I use this somwhere in the class like;
> >
> > IActionListener c = getCallback();
> > c.actionTriggered(this, cycle);
> >
> > Or maybe as an parameter to something else, like you have in your
> component;
> >
> > <binding name="listener" value="callback"/>
> >
> >
> > Cheers,
> > PS
> >
> > On 4/12/06, matt wear <[EMAIL PROTECTED]> wrote:
> >
> >> Are you referring to the code for the listener? If so, I really have
> no
> >> idea if it actually works, the listener never gets called. For some
> >> reason tapestry tries to invoke the editClient listener of whatever
> page
> >> the Border component is contained on, which it doesn't have. I would
> >> like for the editClient listener of the Border component to be called.
> >> Thanks for taking a look though.
> >>
> >> - matt
> >>
> >> Peter Svensson wrote:
> >>
> >>> Hmm. I'm no expert, but couldn't it be that you try to use your Border
> >>> component as if it were a page?
> >>> Remember that a page can contain several components, which in turn can
> >>> contain components, but when you call the getPage() method in the
> >>>
> >> component
> >>
> >>> it actually correctly returns a reference to the current page,
> whichever
> >>>
> >> one
> >>
> >>> you have for the moment.
> >>>
> >>> Cheers,
> >>> PS
> >>>
> >>> On 4/12/06, matt wear <[EMAIL PROTECTED]> wrote:
> >>>
> >>>
> >>>> I have a Border component that has a menu composed of direct
> >>>>
> >> links. For
> >>
> >>>> some reason, tapestry is looking for the listeners of these links in
> >>>>
> >> the
> >>
> >>>> .java file of the page that the border is contained in, and not the
> >>>> Border object its self. Here is a very simple example of what I am
> >>>> saying.
> >>>>
> >>>> Border.jwc
> >>>> <component-specification allow-informal-parameters="no">
> >>>> <parameter name="id"/>
> >>>> <parameter name="title"/>
> >>>> <parameter name="level"/>
> >>>> <component id="editClient" type="DirectLink">
> >>>> <binding name="listener" value="listener:editClient"/>
> >>>> </component>
> >>>> </component-specification>
> >>>>
> >>>> Border.html
> >>>> <html>
> >>>> <head>
> >>>> <meta http-equiv="Content-Type" content="text/html;
> >>>>
> >> charset=ISO-8859-1">
> >>
> >>>> <link href="./css/be.css" type="text/css" rel="stylesheet" />
> >>>> <title><span jwcid="@Insert" value="ognl:title">title</span></title>
> >>>> </head>
> >>>> <body jwcid="@Body">
> >>>> <div id="content">
> >>>> <span jwcid="@RenderBody">Page Content</span>
> >>>> </div>
> >>>> <div id="menu">
> >>>> <span jwcid="@If" condition="level == 'client'">
> >>>> <ul>
> >>>> <li><a jwcid="editClient">Edit Client</a></li>
> >>>> </ul>
> >>>> </span><
> >>>> </div>
> >>>> </body>
> >>>> </html>
> >>>>
> >>>> Border.java
> >>>> public abstract class Border extends BaseComponent
> >>>> {
> >>>> @InjectPage("ClientForm")
> >>>> public abstract ClientForm getClientForm();
> >>>>
> >>>> public IPage editClient()
> >>>> {
> >>>> ClientForm clientForm = getClientForm();
> >>>> clientForm.setClientId((Integer)
> >>>> PropertyUtils.read(getPage(),"clientId"));
> >>>>
> >>>> return clientForm;
> >>>> }
> >>>> }
> >>>>
> >>>> Now, say for a example I include the Border component on a page
> >>>> ClientHome. I get an error saying that ClientHome does not implement
> a
> >>>> listener editClient, when I really want the editClient listener of
> the
> >>>> Border component to be called.
> >>>>
> >>>> I looked at the virtual library example because the same thing is
> being
> >>>> done with the Border component there, however, I can not see what
> I've
> >>>> done wrong. Why isn't the listener editClient of the Border
> component
> >>>> being called? Thanks in advance for any help.
> >>>>
> >>>> - Matt Wear
> >>>>
> >>>> ---------------------------------------------------------------------
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> >>>>
> >>>>
> >>>>
> >>>>
> >>>
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> 4/11/2006
> >>>
> >>>
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> >>
> >>
> >>
> >
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--
Jesse Kuhnert
Tacos/Tapestry, team member/developer
Open source based consulting work centered around
dojo/tapestry/tacos/hivemind. http://opennotion.com
