Re: Programmatically generating DirectLinks with updateComponents

[Kaspar Fischer <fi...@inf.ethz.ch>]

For others running into a similar problem. I've solved it as follows.

My markup contains:

  <div jwcid="block@Block">
    <a jwcid="link@DirectLink" listener="listener:showResult"  
updateComponents="result" async="true" parameters="ognl: 
{page.parameter}"><span jwcid="@Insert" value="ognl:page.linkText"/></a>
  </div>

At the place where I need to programmatically generate the link, I
call my page's setLinkText() method (which I added as an abstract
method) and similarly, setParameter(). Then I do

     Block block = (Block)this.getContainer().getComponent("block");
     block.renderForComponent(writer, cycle, this);

That worked for me.

On 24.12.2007, at 10:39, Kaspar Fischer wrote:

>
> On 22.12.2007, at 23:30, Andreas Andreou wrote:
>
>> Hi,
>> what's the html template for
>> ResultElement ?
>> Can't you add the link there?
>
> ResultElement does not have a HTML but is an AbstractComponent  
> rendering
> its content using the renderComponent(). The name "ResultElement"  
> is a little
> missleading; in reality, ResultElement's renderComponent() method  
> renders
> a tree-like structure and needs to emit lots of DirectLinks with  
> update-
> Components:
>
>>> ... and from the code (ResultElement's renderComponent()) I try to
>>> render the link as follows:
>>>
>>>      DirectLink link = (DirectLink)this.getContainer().getComponent
>>> ("link");
>>>      String url = link.getLink(cycle).getURL();
>>>      writer.begin("a");
>>>      writer.appendAttribute("href", url);
>>>      writer.print(title);
>>>      writer.end();
>
> In the meantime I've taken a look at DefaultLinkRenderer.java and  
> see how
> they output the onClick element. But this does not seem to anwser my
> original question:
>
> How can I programatically generate a DirectLink? Is the above way of
> doing it (using getComponent("link"), referring to an existing  
> DirectLink
> component, that is) the "right" way? If so, how would I add a body to
> the component?
>
> I'd prefer to generate the link like this:
>
>   DirectLink mylink = new DirectLink(...);
>   // how to add the body of the link?
>
> How can I do this?
>
> Kaspar
>
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